ECLIPSE

Reference Manual

2008.2

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Patent informationSchlumberger ECLIPSE reservoir simulation software is protected by US Patents 6,018,497, 6,078,869 and 6,106,561, and UK PatentsGB 2,326,747 B and GB 2,336,008 B. Patents pending. Schlumberger FrontSim reservoir simulation software is protected by US Patent2004/0015295A1.

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Table of ContentsList of Figures ..... .................................................................................................................................................................28List of Tables ...... .................................................................................................................................................................29

Chapter 1 - New Developments ..................................................................................................... 35New facilities....... .................................................................................................................................................................35Behavioral changes ..............................................................................................................................................................50New keywords .... .................................................................................................................................................................57Altered keywords .................................................................................................................................................................68

Chapter 2 - Data File Overview ...................................................................................................... 89Overview............. .................................................................................................................................................................89Data file sections .................................................................................................................................................................90Data file structure .................................................................................................................................................................92Global keywords . .................................................................................................................................................................94ECLIPSE 300 error handling ................................................................................................................................................97Example data file .................................................................................................................................................................99RUNSPEC section overview...............................................................................................................................................100GRID section overview .......................................................................................................................................................107EDIT section overview........................................................................................................................................................134PROPS section overview....................................................................................................................................................139REGIONS section overview................................................................................................................................................186SOLUTION section overview..............................................................................................................................................194SUMMARY section overview..............................................................................................................................................208SCHEDULE section overview.............................................................................................................................................268OPTIMIZE section overview ...............................................................................................................................................290

Chapter 3 - Keywords ................................................................................................................... 291ACF: Acentric factor .......................................................................................................................................................... 291ACFDET: Acentric factor for detailed components ............................................................................................................ 292ACFS: Acentric factors for production system................................................................................................................... 293ACTDIMS: Dimensions for the ACTION Facility................................................................................................................ 294ACTION: Initiates a set of keywords to be processed when a specified field condition is satisfied................................... 295ACTIONG: Initiates a set of keywords to be processed when a group satisfies a specified condition .............................. 298ACTIONR: Initiates a set of keywords to be processed when a region satisfies a specified condition ............................. 303ACTIONS: Initiates a set of keywords to be processed when a well segment satisfies a specified condition................... 306ACTIONW: Initiates a set of keywords to be processed when a well satisfies a specified condition ................................ 309ACTIONX: Initiates a set of keywords to be processed when a set of conditions are satisfied......................................... 313ACTNUM: Active grid block identification .......................................................................................................................... 324ACTPARAM: Parameters for the ACTION Facility ............................................................................................................ 325ADD: Adds a constant to the specified array in current box .............................................................................................. 326ADDREG: Adds a constant to the specified array in either a flux region, MULTNUM region or OPERNUM region ......... 330ADDZCORN: Adds a constant to the corner point depth array ......................................................................................... 334AIM: Use the AIM solution option ...................................................................................................................................... 337AIMCON: Controls for AIM ................................................................................................................................................ 338AIMFRAC: Set target implicit fraction in AIM mode........................................................................................................... 341AIMPVI: Specify minimum pore volume for an explicit cell................................................................................................ 342AJGPARAM: Specify static parameters for adjoint gradient calculation............................................................................ 343AJGRADNT: Request sensitivities with respect to grid properties using the adjoint method ............................................ 344AJGWELLS: Specify objective functions for adjoint gradient calculation .......................................................................... 345ALPHA: Transport coefficient tables.................................................................................................................................. 346ALPHAD: Drainage Transport coefficient tables................................................................................................................ 347ALPHAI: Imbibition Transport coefficient tables ................................................................................................................ 348ALPHANUD: ALPHAD region numbers............................................................................................................................. 349

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ALPHANUI: ALPHAI region numbers ................................................................................................................................ 350ALPHANUM: ALPHA region numbers ............................................................................................................................... 351AMALGAM: Specify LGR amalgamations ......................................................................................................................... 352AMF: Specifies cell initial aqueous composition explicitly.................................................................................................. 354API: API tracking option is enabled.................................................................................................................................... 355APIGROUP: Allows grouping of oil PVT tables for API tracking........................................................................................ 356APIVD: Oil API versus depth for API tracking equilibration ............................................................................................... 357AQANCONL: Specifies local grid refinement connection data for analytic aquifers .......................................................... 358AQANNC: Set connections values explicitly for analytic aquifers...................................................................................... 361AQANTRC: Sets initial tracer concentrations for analytic aquifers .................................................................................... 362AQCOEF: A-coefficient terms for water component .......................................................................................................... 364AQSTREAM: Set composition of injected gas stream for AQUCHGAS aquifer or set composition of GASWAT water analytic aquifer ................................................................................................................................................................................ 365AQSTREAW: Set composition of multi-component water analytic aquifer ........................................................................ 366AQUALIST: Sets up lists of aquifers for output.................................................................................................................. 367AQUANCON: Specifies connection data for analytic aquifers ........................................................................................... 368AQUCHGAS: Specifies the property data for constant head/pressure gas aquifers ......................................................... 371AQUCHWAT: Specifies the property data for constant head/pressure water aquifers...................................................... 373AQUCON: Specifies connection data for numerical aquifers............................................................................................. 377AQUCT: Specifies the property data for Carter-Tracy aquifers ......................................................................................... 380AQUCWFAC: Changes the property data for all constant head aquifers .......................................................................... 383AQUDIMS: Dimensions for aquifers .................................................................................................................................. 384AQUFET: Specification data for Fetkovich aquifers........................................................................................................... 386AQUFETP: Specifies the property data for Fetkovich aquifers.......................................................................................... 388AQUFLUX: Specifies a constant flux aquifer ..................................................................................................................... 390AQUNNC: Set non-neighbor connection values explicitly for numerical aquifers.............................................................. 392AQUNUM: Assigns a numerical aquifer to a block ............................................................................................................ 394AQUTAB: Influence function tables for Carter-Tracy aquifers ........................................................................................... 396ASPDENO: Asphaltene oil density change data................................................................................................................ 397ASPDEPO: Asphaltene deposition data ............................................................................................................................ 398ASPFLOC: Asphaltene flocculation components............................................................................................................... 399ASPFLRT: Aphaltene flocculation/dissociation rates......................................................................................................... 400ASPHALTE: Asphaltene option ......................................................................................................................................... 401ASPKDAM: Asphaltene permeability damage................................................................................................................... 402ASPKROW: Asphaltene relative permeability for wettability change................................................................................. 403ASPLCRT: Asphaltene plugging control ............................................................................................................................ 404ASPP1P: Asphaltene one parameter precipitation ............................................................................................................ 405ASPP2P: Asphaltene two parameters precipitation........................................................................................................... 406ASPPW2D: Asphaltene two parameters precipitation data ............................................................................................... 407ASPREWG: Asphaltene as percentage weight ................................................................................................................. 408ASPREFU: Asphaltene by fugacity.................................................................................................................................... 410ASPVISO: Asphaltene oil viscosity change ....................................................................................................................... 411ASPWETF: Asphaltene wettability factor data................................................................................................................... 412AUTOCOAR: Specifies a box of cells for grid coarsening within an auto refinement ........................................................ 413AUTOREF: Set options for auto refinement....................................................................................................................... 417AUTOSAVE: Specify automatic writing of SAVE files........................................................................................................ 418BAKER1: Request Baker three-phase relative permeability model (General)................................................................... 419BAKER2: Request Baker three-phase relative permeability model (Simplified) ................................................................ 421BDENSITY: Brine surface density ..................................................................................................................................... 423BGGI: Variation of saturated gas FVF with pressure and Gi ............................................................................................. 424BIC: Binary interaction coefficients .................................................................................................................................... 425BICAQ1: First binary interaction coefficient for aqueous phase ........................................................................................ 426BICAQ2: Second binary interaction coefficient for aqueous phase ................................................................................... 427BICAQ3: Third binary interaction coefficient for aqueous phase ....................................................................................... 428BICS: Binary interaction coefficients for surface................................................................................................................ 429BIGMODEL: Allows large models to run............................................................................................................................ 430BIOTC: Biots Constant for Rock/Fluid Interaction............................................................................................................. 431BIOTCTAB: Geomechanics Biot constant multiplier as a tabular function of rock stress .................................................. 432BLACKOIL: Requests black oil mode ................................................................................................................................ 434

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BOGI: Variation of saturated oil FVF with pressure and Gi ............................................................................................... 435BOUNDARY: Defines area of grid to be printed................................................................................................................ 436BOX: Redefines the current input box ............................................................................................................................... 438BPIDIMS: Dimensions for interpolated block quantities .................................................................................................... 439BRANPROP: Defines the extended network branches ..................................................................................................... 440BRINE: Brine tracking is required...................................................................................................................................... 443BTOBALFA: Dual porosity block to block matrix-fracture coupling multiplier .................................................................... 444BTOBALFV: Dual porosity block to block matrix-fracture coupling multiplier .................................................................... 445CALTRAC: Sets a tracer to be associated with the calorific value of the gas ................................................................... 446CALVAL: Component calorific values................................................................................................................................ 447CALVALR: Component calorific values for multiple equation of state regions .................................................................. 448CARFIN: Specifies a cartesian local grid refinement......................................................................................................... 449CART: Specify cartesian geometry.................................................................................................................................... 451CBMOPTS: Options for the Coal bed methane model ...................................................................................................... 452CCTYPE: Component compressibility type ....................................................................................................................... 453CCTYPES: Component compressibility type for surface conditions.................................................................................. 454CECON: Economic limits for production well connections ................................................................................................ 455CECONT: Tracer economic limits for production well connections ................................................................................... 458CFLLIMIT: Stable time-stepping. ....................................................................................................................................... 461CHANDIMS: Increase well dimensions ............................................................................................................................. 463CIRCLE: Requests completion of the circle....................................................................................................................... 465CNAMES: Component names........................................................................................................................................... 466CO2SOL: Allow CO2 to dissolve in the aqueous phase.................................................................................................... 467CO2STORE: CO2 storage option...................................................................................................................................... 468COAL: Enable coal bed methane option ........................................................................................................................... 469COALADS: Gas/solvent relative adsorption data .............................................................................................................. 470COALNUM: Coal regions................................................................................................................................................... 472COALNUMR: Redefine coal region numbers for matrix subcells ...................................................................................... 473COALPP: Gas/solvent partial pressure data ..................................................................................................................... 475COARSEN: Specifies a box of cells for grid coarsening.................................................................................................... 476COLLAPSE: Identifies collapsible cells in the compressed VE option .............................................................................. 478COLUMNS: Sets the left and right margins for the input data file ..................................................................................... 479COMPAGH: Completion gravity head ............................................................................................................................... 480COMPAGHL: Completion gravity head in local refined grids ............................................................................................ 482COMPDAT: Well completion specification data................................................................................................................. 484COMPDATL: Completion data for wells in local grids ....................................................................................................... 489COMPDATM: Completion data for wells in amalgamated local refined grids.................................................................... 495COMPFLSH: Flash transformation ratios for well connections.......................................................................................... 496COMPIMB: Imbibition table numbers for well connections................................................................................................ 500COMPINJK: User-defined injection well relative permeabilities ........................................................................................ 502COMPKRI: Relative permeabilities for injector .................................................................................................................. 504COMPKRIL: Relative permeabilities for injector completions in local refined grids........................................................... 506COMPLMPL: Lumps connections in local grids for automatic workovers ......................................................................... 508COMPLUMP: Lumps connections for automatic workovers.............................................................................................. 511COMPMBIL: Voidage mobility for injector completions in local refined grids .................................................................... 513COMPMOBI: Voidage mobility for injector......................................................................................................................... 515COMPOFF: Switches off automatic compressors in the network...................................................................................... 516COMPORD: Defines the ordering of well connections ...................................................................................................... 517COMPRIV: Specifies which grid blocks connect to a river ................................................................................................ 519COMPRP: Data for rescaling saturations at well connections........................................................................................... 520COMPRPL: Scaled saturations for local grid well connections ......................................................................................... 526COMPS: Requests compositional mode ........................................................................................................................... 528COMPSEGL: Defines location of multi-segment well completions in a local grid.............................................................. 529COMPSEGS: Defines location of completions in a multi-segment well............................................................................. 531COMPSOL: Sets number of components in a SOLID, BLACKOIL run ............................................................................. 535COMPVD: Total composition with respect to depth........................................................................................................... 536COMPVE: Well connection depth data.............................................................................................................................. 537COMPVEL: Well connection depth data in local grids....................................................................................................... 541COMPW: Requests multiple water component model....................................................................................................... 545

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CONDFLTS: Specifies conductive faults ........................................................................................................................... 546CONDFRAC: Specifies a conductive fracture.................................................................................................................... 548COORD: Coordinate lines.................................................................................................................................................. 550COORDSYS: Coordinate system information for each reservoir....................................................................................... 552COPY: Copies data from one array to another .................................................................................................................. 554COPYBOX: Copies an array of Grid data from one box to another................................................................................... 557COPYREG: Copy by either FLUXNUM region, MULTNUM region or OPERNUM region................................................. 559CREF: Oil component compressibility ............................................................................................................................... 562CREFW: Water component compressibility....................................................................................................................... 563CRITPERM: Permeability criterion for Vertical Equilibrium cell compression.................................................................... 564CRNDENS: Rock density by coal regions ......................................................................................................................... 565CVCRIT: Convergence criteria .......................................................................................................................................... 566CVTYPE: Component volatility type .................................................................................................................................. 570CVTYPES: Component volatility type for surface conditions............................................................................................. 571DATE: Outputs the date to the summary file ..................................................................................................................... 572DATES: Advances simulator to specified report date(s).................................................................................................... 573DATUM: Datum depth for output of depth corrected pressures......................................................................................... 574DATUMR: Datum depth for each FIP region ..................................................................................................................... 575DBGODD3P: Controls debug output for ODD3P option .................................................................................................... 576DCQDEFN: Definition of the DCQ - gas rate or energy..................................................................................................... 577DEADOIL: The dead oil option is to be used ..................................................................................................................... 578DEBUG: Controls on debug output.................................................................................................................................... 579DEBUG3: Controls on debug output.................................................................................................................................. 582DELAYACT: Initiates a set of keywords to be processed a certain time after another ACTION is triggered..................... 591DENSITY: Fluid densities at surface conditions ................................................................................................................ 596DEPTH: Grid block center depths...................................................................................................................................... 598DEPTHTAB: Tables of river depth data ............................................................................................................................. 599DETAILMF: Initial mole fraction make-up of lumped component in terms of detailed components versus depth ............. 600DETAILVD: Initial fraction make-up of lumped component in terms of detailed components versus depth ...................... 602DGRID: Dump section of grid ............................................................................................................................................ 604DGRDT: Maximum rate of change of guide rate for wells under group control ................................................................. 606DIAGDISP: Enables alternate form of tracer dispersion.................................................................................................... 607DIFFAGAS: Activity corrected gas diffusion coefficients ................................................................................................... 608DIFFAOIL: Activity corrected oil diffusion coefficients ....................................................................................................... 609DIFFC: Molecular diffusion data for each PVT region ....................................................................................................... 610DIFFCBM: Coal Bed Methane diffusion coefficients.......................................................................................................... 612DIFFCGAS: Gas diffusion coefficients............................................................................................................................... 613DIFFCGO: Gas-Oil diffusion coefficients ........................................................................................................................... 614DIFFCGW: Gas-Water diffusion coefficients ..................................................................................................................... 615DIFFCOAL: Gas diffusion data .......................................................................................................................................... 616DIFFCOIL: Oil diffusion coefficients................................................................................................................................... 617DIFFCOG: Oil-Gas diffusion coefficients ........................................................................................................................... 618DIFFCWAT: Water diffusion coefficients ........................................................................................................................... 619DIFFCWG: Water-Gas diffusion coefficients ..................................................................................................................... 620DIFFDP: Restricts molecular diffusion in dual porosity runs.............................................................................................. 621DIFFMMF: Matrix-fracture diffusivity multipliers................................................................................................................. 622DIFFMR: Diffusivity multipliers in the radial direction......................................................................................................... 623DIFFMR-: Diffusivity multipliers in the negative radial direction......................................................................................... 624DIFFMTHT: Diffusivity multipliers in the theta direction ..................................................................................................... 625DIFFMTH-: Diffusivity multipliers in the negative theta direction ....................................................................................... 626DIFFMX: Diffusivity multipliers in the X-direction ............................................................................................................... 627DIFFMX-: Diffusivity multipliers in the negative X-direction ............................................................................................... 628DIFFMY: Diffusivity multipliers in the Y-direction ............................................................................................................... 629DIFFMY-: Diffusivity multipliers in the negative Y-direction ............................................................................................... 630DIFFMZ: Diffusivity multipliers in the Z-direction ............................................................................................................... 631DIFFMZ-: Diffusivity multipliers in the negative Z-direction................................................................................................ 632DIFFR: Diffusivities in the radial direction .......................................................................................................................... 633DIFFTGAS: Thermal diffusion coefficients for gas............................................................................................................. 634DIFFTHT: Diffusivities in the theta direction ...................................................................................................................... 635

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DIFFTOIL: Thermal diffusion coefficients for oil ................................................................................................................ 636DIFFUSE: Enables molecular diffusion ............................................................................................................................. 637DIFFX: Diffusivities in the X-direction ................................................................................................................................ 638DIFFY: Diffusivities in the Y-direction ................................................................................................................................ 639DIFFZ: Diffusivities in the Z-direction................................................................................................................................. 640DIMENS: Specifies the dimensions of the grid .................................................................................................................. 641DIMPES: Dynamically sets IMPES solution procedure ..................................................................................................... 642DIMPLICT: Resets the solution procedure to fully implicit................................................................................................. 643DISGAS: Run contains dissolved gas in live oil................................................................................................................. 644DISPBC: Velocity boundary conditions for coupled rock and stress calculations.............................................................. 645DISPBCL: Velocity boundary conditions for coupled rock and stress calculations in a Local Grid Refinement ................ 647DISPDIMS: Dispersion dimension data............................................................................................................................. 649DISPERSE: Dispersion tables........................................................................................................................................... 650DNGL: Partial densities for NGLs...................................................................................................................................... 652DOMAIN: Set non-default domain size for phase property evaluation .............................................................................. 653DOMAINS: Modifies the size of parallel domains.............................................................................................................. 654DPCDT: Maximum rate of change of capillary pressure.................................................................................................... 655DPGRID: Use matrix cell grid data for fracture cells.......................................................................................................... 656DPKRMOD: Modifies the matrix oil relative permeability in dual porosity cases ............................................................... 657DPNUM: Identifies extent of dual porosity region.............................................................................................................. 659DR: R direction grid block sizes......................................................................................................................................... 660DRAINAGE: Request drainage option in hysteresis.......................................................................................................... 661DREF: Reference densities ............................................................................................................................................... 662DREFS: Reference densities for surface EoS................................................................................................................... 663DREFT: Reference densities ............................................................................................................................................. 664DREFTS: Reference densities for surface EOS................................................................................................................ 665DREFW: Reference densities for water components ........................................................................................................ 666DRILPRI: Defines the default priority formula for the prioritised drilling queue.................................................................. 667DRSDT: Maximum rate of increase of solution GOR ........................................................................................................ 669DRV: Radial-direction grid block sizes (vector) ................................................................................................................. 670DRVDT: Maximum rate of increase of vapor OGR............................................................................................................ 671DSPDEINT: Interpolation of dispersion tables by water density........................................................................................ 672DSTNUM: Decreasing hysteresis saturation function region numbers.............................................................................. 673DTHETA: Theta-direction grid block sizes......................................................................................................................... 674DTHETAV: Angular sizes of grid blocks (vector) ............................................................................................................... 675DUALPERM: Run is to use dual permeability.................................................................................................................... 676DUALPORO: Run is to use dual porosity .......................................................................................................................... 677DUMPCUPL: Tells master run to write a reservoir coupling file ........................................................................................ 678DUMPFLUX: Makes a full-field run write a flux file ............................................................................................................ 679DX: X-direction grid block sizes......................................................................................................................................... 680DXV: X-direction grid block sizes (vector) ......................................................................................................................... 681DY: Y-direction grid block sizes......................................................................................................................................... 682DYNAMICR: Define regions based on when a set of conditions are satisfied................................................................... 683DYNRDIMS: Specify dimensions required for Dynamic Region feature............................................................................ 689DYV: Y-direction grid block sizes (vector) ......................................................................................................................... 690DZ: Z-direction grid block sizes ......................................................................................................................................... 691DZMATRIX: The vertical dimension of a block of matrix material ..................................................................................... 692DZMTRX: The vertical dimension of a block of matrix material......................................................................................... 693DZMTRXV: The vertical dimension of a block of matrix material ...................................................................................... 694DZNET: Specifies the cell net DZ values........................................................................................................................... 695DZV: Z-direction grid block sizes (vector).......................................................................................................................... 696E100NOSI: Enable NOSIM if incompatible E100 keyword................................................................................................ 697ECHO: Switches echo output on ....................................................................................................................................... 698EDITNNC: Multiply a non-neighbor connection ................................................................................................................. 699EDITNNCR: Replace a non-neighbor connection ............................................................................................................. 701EHYSTR: Hysteresis parameters and model selection ..................................................................................................... 703EHYSTRR: Hysteresis parameters by region.................................................................................................................... 707END: Logical end of input file ............................................................................................................................................ 708ENDACTIO: Indicates end of ACTION keyword sequence ............................................................................................... 709

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ENDBOX: Reset current input box to encompass the entire grid ...................................................................................... 710ENDDYN: Indicates end of DYNAMICR keyword sequence ............................................................................................. 711ENDFIN: Terminates data for a local grid refinement ........................................................................................................ 712ENDINC: Logical end of include file................................................................................................................................... 713ENDNUM: End point scaling versus depth region numbers .............................................................................................. 714ENDSCALE: Use saturation table end-point scaling ......................................................................................................... 715ENDSKIP: End skipping of keywords .......................................................... 717ENKRVC: Relative permeabilities at saturation end point versus composition ................................................................. 718ENKRVD: Relative permeability end point versus depth tables......................................................................................... 719ENKRVT: Relative permeabilities at saturation end point versus temperature.................................................................. 722ENPCVC: Capillary pressures at saturation end point versus composition....................................................................... 723ENPCVD: Maximum capillary pressure versus depth tables ............................................................................................. 724ENPCVT: Capillary pressures at saturation end point versus temperature ....................................................................... 725ENPTVC: Saturation end point versus composition .......................................................................................................... 726ENPTVD: Saturation end point versus depth tables.......................................................................................................... 728ENPTVT: Saturation end point versus temperature........................................................................................................... 730ENSPCVD: Scaled saturations for Pc curves versus depth tables.................................................................................... 731EOS: Specify which equation of state is to be used .......................................................................................................... 732EOSNUM: Equation of state region numbers .................................................................................................................... 733EOSS: Specify surface equation of state........................................................................................................................... 734EPSCOMP: End-point scaling component......................................................................................................................... 735EPSDBGS: Controls debug for end-point scaling option ................................................................................................... 736EPSDEBUG: Controls debug for end-point scaling option ................................................................................................ 738EPSODD3P: End-point and process scaling control for ODD3P option ............................................................................ 740EQLDIMS: Dimensions of equilibration tables................................................................................................................... 746EQLDKVCR: Equilibrium deviation reaction k-values........................................................................................................ 748EQLDREAC: Equilibrium deviation reaction rates ............................................................................................................. 749EQLNUM: Equilibration region numbers............................................................................................................................ 751EQLOPTS: Options for equilibration .................................................................................................................................. 752EQLZCORN: Reset part of the corner point depth array ................................................................................................... 753EQUALREG: Sets an array to a constant value in a flux region, MULTNUM region or OPERNUM region ...................... 756EQUALS: Set array to a constant in current box ............................................................................................................... 759EQUIL: Equilibration data specification.............................................................................................................................. 762EXCEL: Requests run summary output to be in Excel format ........................................................................................... 767EXTFIN: Specifies an external local grid refinement ......................................................................................................... 768EXTHOST: Specify parent cells for LGR cells in an external local grid refinement ........................................................... 769EXTRAPMS: Requests warning messages for table extrapolation ................................................................................... 770EXTREPGL: Specify replaced global cells for an external local grid refinement ............................................................... 771FACTLI: Modify Li critical temperature correlation............................................................................................................. 772FASTTRAC: Enable shortcuts in tracer calculations ......................................................................................................... 773FAULTDIM: Dimensions for fault data ............................................................................................................................... 774FAULTS: Specifies faults for later editing .......................................................................................................................... 775FCCRIT: Flash convergence criteria.................................................................................................................................. 777FHERCHBL: Define property data for Herschel-Bulkley Fluid as a function of polymer concentration ............................. 778FIELD: Field units are to be used ...................................................................................................................................... 779FIELDSEP: Introduces a field separator ............................................................................................................................ 780FILLEPS: Requests that saturation end points for all grid blocks are written to the INIT file............................................. 783FIP: Additional sets of fluid-in-place region numbers......................................................................................................... 784FIPNUM: Fluid-in-place region numbers............................................................................................................................ 786FIPOWG: Sets up a family of FIP regions representing the original GAS, OIL and WATER zones.................................. 787FIPSEP: Introduces a fluid-in-place region separator........................................................................................................ 788FLUXNUM: Identifies extent of each flux region................................................................................................................ 791FLUXREG: Identifies which flux regions are active ........................................................................................................... 793FLUXTYPE: Specify type of flux boundary condition......................................................................................................... 794FMTHMD: Indicates that HMD file is to be formatted ........................................................................................................ 795FMTIN: Indicates that input files are formatted.................................................................................................................. 796FMTOUT: Indicates that output files are formatted............................................................................................................ 797FMTSAVE: Indicates that save files are formatted ............................................................................................................ 798FOAM: Enable FOAM option ............................................................................................................................................. 799

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FOAMADS: Foam adsorption functions............................................................................................................................. 800FOAMDCYO: Foam decay data as a function of oil saturation ......................................................................................... 801FOAMDCYW: Foam decay data as a function of water saturation.................................................................................... 802FOAMFCN: Gas mobility reduction dependence upon capillary number .......................................................................... 803FOAMFRM: Gas mobility reduction dependence upon reference mobility reduction ........................................................ 805FOAMFSC: Gas mobility reduction dependence upon foam surfactant concentration ..................................................... 806FOAMFSO: Gas mobility reduction dependence upon oil saturation ................................................................................ 808FOAMFST: Gas-water surface tension versus foam surfactant concentration.................................................................. 810FOAMFSW: Gas mobility reduction dependence upon water saturation .......................................................................... 811FOAMMOB: Gas mobility reduction data........................................................................................................................... 813FOAMMOBP: Pressure dependence of foam mobility reduction....................................................................................... 814FOAMMOBS: Shear dependence of foam mobility reduction ........................................................................................... 815FOAMOPTS: Foam model options.................................................................................................................................... 816FOAMROCK: Specifies the foam-rock properties ............................................................................................................. 817FORMFEED: Sets the formfeed character in the print file................................................................................................. 818FORMOPTS: Formulation Options.................................................................................................................................... 819FREEZEPC: Freeze all capillary pressures in a run.......................................................................................................... 821FRICTION: Enables the wellbore friction option ................................................................................................................ 822FULLIMP: The fully implicit solution option........................................................................................................................ 823FVST: Specify miscibility variation with surface tension.................................................................................................... 824FWELLS: Fractured well completion option....................................................................................................................... 825GADJUST: Adjust diagonal permeability tensor ................................................................................................................ 826GADVANCE: Assign advance import gas to a group ........................................................................................................ 827GAS: Run contains GAS ................................................................................................................................................... 828GASBEGIN: Starts set of keywords for annual scheduling file.......................................................................................... 829GASCONC: Initial coal gas concentration ......................................................................................................................... 833GASEND: Ends set of keywords for annual scheduling file............................................................................................... 834GASFCOMP: Automatic compressors for standard network option .................................................................................. 835GASFDECR: Decrement for FIELD gas contract .............................................................................................................. 838GASFDELC: Delivery capacity definition for gas field operations model........................................................................... 839GASFIELD: Enables special options in the gas field operations model ............................................................................ 840GASFTARG: Production rate for FIELD gas contract........................................................................................................ 841GASMONTH: Sets month pointer in annual scheduling file .............................................................................................. 842GASPERIO: Advances simulator over n gas field contract periods ................................................................................. 844GASSATC: Initial saturated coal gas concentration .......................................................................................................... 849GASVISCF: Gas viscosity function.................................................................................................................................... 850GASVISCT: Gas viscosity versus temperature table......................................................................................................... 851GASWAT: Use water-gas model ....................................................................................................................................... 852GASYEAR: Advances simulator over n gas field contract years ..................................................................................... 853GCALECON: Energy and calorific value economic limit data for groups .......................................................................... 857GCONCAL: Calorific value controls for groups.................................................................................................................. 859GCONENG: Energy production rate control for groups..................................................................................................... 860GCONINJE: Injection rate controls/limits for groups/field .................................................................................................. 861GCONPRI: Group/field production limits for prioritization.................................................................................................. 868GCONPROD: Production rate controls/limits for groups or field ....................................................................................... 872GCONSALE: Sales gas production controls for groups/field............................................................................................. 879GCONSUMP: Gas consumption and import rates for groups ........................................................................................... 883GCONTOL: Tolerance for group control targets................................................................................................................ 885GCUTBACK: Group cutback limits .................................................................................................................................... 888GCUTBACT: Tracer cutback limits for groups................................................................................................................... 890GCVD: Initial coal gas concentration versus depth tables................................................................................................. 892GDCQ: Initial DCQs for multiple contract groups .............................................................................................................. 893GDCQECON: Minimum economic DCQ limit for contract groups ..................................................................................... 895GDFILE: Imports a grid file ................................................................................................................................................ 896GDIMS: Specify the dimensions for the instantaneous gradient option............................................................................. 898GDRILPOT: Group minimum potential rates for drilling..................................................................................................... 899GECON: Economic limit data for groups and the field....................................................................................................... 901GECONT: Tracer economic limits for groups .................................................................................................................... 904GEFAC: Sets group efficiency factors (for downtime) ....................................................................................................... 907

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GEODIMS: Geomechanics dimension data....................................................................................................................... 910GEOMECH: Geomechanics Calculation............................................................................................................................ 911GEOYCAP: Geomechanics cap model parameters .......................................................................................................... 913GEOYLDF: Geomechanics yield function parameters....................................................................................................... 914GETDATA: Read named array data from a ECLIPSE restart or init file ............................................................................ 916GETGLOB: Read only the global restart data.................................................................................................................... 917GETSOL: Obtain initial solution arrays from restart file ..................................................................................................... 918GI: Initial Gi values for enumeration................................................................................................................................... 919GIALL: Variation of saturated properties with pressure and Gi.......................................................................................... 920GIMODEL: Enable GI pseudo-compositional option.......................................................................................................... 921GINJGAS: Specify the nature of the injected gas.............................................................................................................. 922GINODE: Gi nodal values.................................................................................................................................................. 924GLIFTLIM: Maximum group capacity for artificial lift.......................................................................................................... 925GLIFTOPT: Group lift gas limits for gas lift optimization .................................................................................................... 926GLTHEX: Geomechanical linear thermal expansion coefficient ........................................................................................ 927GMDISBC: Displacement boundary conditions for coupled rock and stress calculations ................................................. 928GMDISBCL: Displacement boundary conditions for coupled rock and stress calculations in a Local Grid Refinement.... 930GMPSTBC: Principal stress boundary conditions coupled stress and fluid flow ............................................................... 932GMPSTBCL: Principal stress boundary conditions for coupled stress and fluid flow in a Local Grid Refinement............. 935GMTRABC: Traction boundary conditions......................................................................................................................... 938GMTRABCL: Traction boundary conditions in a Local Grid Refinement ........................................................................... 940GNETDP: Controls the dynamic changing of fixed pressures ........................................................................................... 942GNETINJE: Defines the structure of the injection network ................................................................................................ 945GNETPUMP: Automatic pump/compressor switching in a standard network.................................................................... 947GPMAINT: Data for pressure maintenance groups ........................................................................................................... 949GPMAINT3: Data for pressure maintenance groups ......................................................................................................... 953GPTABLE: Tables of gas plant recovery factors ............................................................................................................... 957GPTABLEN: Gas plant table with NGL recoveries ............................................................................................................ 958GPTABLE3: Gas plant table with oil, NGL and gas recoveries ......................................................................................... 959GPTDIMS: Gas plant table dimensions ............................................................................................................................. 960GQUALITY: Set group gas quality target........................................................................................................................... 961GRADGRUP: Specify field and group quantities to be output to HMD file ........................................................................ 962GRADRESV: Specify derivatives of solution quantities to be output to the restart file ...................................................... 963GRADRFT: Request gradient output of RFT quantities..................................................................................................... 966GRADWELL: Specify well quantities to be output to HMD file........................................................................................... 967GRAVDR: Use gravity drainage for dual porosity runs ...................................................................................................... 969GRAVDRM: Use the alternative gravity drainage model for dual porosity runs................................................................. 970GRAVDRB: Use the vertical discretised gravity drainage model for dual porosity runs .................................................... 971GRAVITY: Fluid gravities at surface conditions ................................................................................................................. 972GRDREACH: Defines location of grid blocks connecting to a river-bed............................................................................ 973GREF: Reference gravities for EoS................................................................................................................................... 976GREFS: Reference gravities for surface EoS.................................................................................................................... 977GRIDFILE: Control output of the Grid geometry file .......................................................................................................... 978GRIDOPTS: Options to process grid data ......................................................................................................................... 980GRIDUNIT: Specifies the grid data units ........................................................................................................................... 981GRUPFUEL: Specifies group fuel rate............................................................................................................................... 982GRUPGR: Specifies group guide rates.............................................................................................................................. 984GRUPINJE: Specifies group injection targets.................................................................................................................... 986GRUPLIM: Specifies group economic limits ...................................................................................................................... 991GRUPMAST: Identifies the master groups and their slaves .............................................................................................. 992GRUPNET: Defines the standard production network structure........................................................................................ 994GRUPPROD: Specifies group production target/limits ...................................................................................................... 997GRUPRIG: Assigns workover and drilling rigs to groups................................................................................................... 999GRUPSALE: Specifies group gas sales rate ................................................................................................................... 1002GRUPSLAV: Identifies the slave groups in a slave reservoir .......................................................................................... 1003GRUPTARG: Resets a group production rate target or limit ........................................................................................... 1006GRUPTREE: Sets up tree structure for multi-level group control .................................................................................... 1008GSATCOMP: Specify a composition for a satellite group................................................................................................ 1010GSATINJE: Injection rate data for satellite groups .......................................................................................................... 1011

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GSATPROD: Production rate data for satellite groups.................................................................................................... 1013GSEPCOND: Assigns separators to groups in ECLIPSE 100......................................................................................... 1016GSEPREPT: Assign separator conditions to a group for group flash summary vectors ................................................. 1017GSF: Gas saturation functions (GASWAT cases).............................................................................................................. 1019GSSCPTST: Performs a sustainable capacity test.......................................................................................................... 1020GSWINGF: Swing and profile factors for multiple contract groups.................................................................................. 1023GTADD: Adds to a group rate target or limit.................................................................................................................... 1025GTMULT: Multiplies a group rate target or limit............................................................................................................... 1027GUIDECAL: Scales guide rates according to calorific value ........................................................................................... 1029GUIDERAT: Specifies general formula for guide rates.................................................................................................... 1030GUPFREQ: Update frequency for the instantaneous gradient option ............................................................................. 1034GWRTWCV: Instantaneous gradients with respect to well control variables .................................................................. 1035H2SSOL: Allow H2S to dissolve in the aqueous phase................................................................................................... 1036HALFTRAN: Specifies half block transmissibilities.......................................................................................................... 1037HAxxxxxx: Additive modifiers for gradient parameters. ................................................................................................... 1038HDISP: Tracer mechanical dispersion data..................................................................................................................... 1039HEATCR: Rock heat capacity.......................................................................................................................................... 1040HEATCRT: Temperature dependence of the rock heat capacity .................................................................................... 1041HEATDIMS: Heater dimensions ...................................................................................................................................... 1042HEATER: Heater data ..................................................................................................................................................... 1043HEATERL: LGR heater data ........................................................................................................................................... 1045HEATTR: Heat transmissibilities for radial run ................................................................................................................ 1046HEATTTHT: Heat transmissibilities for radial run ............................................................................................................ 1047HEATTX: Heat transmissibility x-direction ....................................................................................................................... 1048HEATTY: Heat transmissibility y-direction ....................................................................................................................... 1049HEATTZ: Heat transmissibility z-direction ....................................................................................................................... 1050HEATVAP: Heat of vaporization...................................................................................................................................... 1051HEATVAPE: Heat of vaporization exponent.................................................................................................................... 1052HEATVAPS: Heat of vaporization at standard temperature ............................................................................................ 1053HMAQUCT: Specify gradients for Carter-Tracy aquifers................................................................................................. 1054HMAQUFET: Specify gradients for Fetkovich aquifers.................................................................................................... 1056HMAQUNUM: Calculate gradients for numerical aquifers............................................................................................... 1058HMDIMS: Specify the dimensions for the gradient option ............................................................................................... 1060HMFAULTS: Specify gradients for faults ......................................................................................................................... 1062HMMLAQUN: Multipliers for numerical aquifer properties............................................................................................... 1063HMMLCTAQ: Specify modifiers for Carter-Tracy aquifers............................................................................................... 1064HMMLFTAQ: Specify modifiers for Fetkovich aquifers.................................................................................................... 1065HMMLTxxx: Cumulative multipliers for gradient parameters ........................................................................................... 1066HMMLTWCN: Modifies well connection transmissibility factor and skin factor................................................................ 1067HMMMREGT: Cumulative inter-region transmissibility modifiers .................................................................................... 1069HMMROCK: Specify cumulative multipliers on rock compressibility ............................................................................... 1070HMMROCKT: Specify cumulative modifiers for rock compaction parameters ................................................................ 1071HMMULRGT: Calculate gradients for inter-region transmissibility multipliers ................................................................. 1072HMMULTxx: Cumulative multipliers for gradient parameters .......................................................................................... 1073HMMULTFT: Modifies the transmissibility across the named fault.................................................................................. 1076HMMULTSG: Dual porosity sigma factor modifiers ......................................................................................................... 1077HMPROPS: Section heading for end-point scaling modifiers.......................................................................................... 1078HMROCK: Calculate gradients for rock compressibility .................................................................................................. 1081HMROCKT: Calculate gradients for rock compaction tables........................................................................................... 1082HMRREF: Reference pressure for rock table modifications ............................................................................................ 1084HMWELCON: Specify gradients for well connection parameters.................................................................................... 1085HMWPIMLT: Calculate gradients with respect to well productivity index ........................................................................ 1087HMxxxxxx: Gradient regions............................................................................................................................................ 1088HRFIN: Radial grid DRV ratios ........................................................................................................................................ 1092HSGRO: Hysteresis residual gas saturation in gas-oil system........................................................................................ 1093HSGRW: Hysteresis residual gas saturation in gas-water system.................................................................................. 1094HSORG: Hysteresis residual oil saturation in oil-gas system.......................................................................................... 1095HSORW: Hysteresis residual oil saturation in oil-water system ...................................................................................... 1096HSWRG: Hysteresis residual water saturation in water-gas system............................................................................... 1097

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HSWRO: Hysteresis residual water saturation in water-oil system ................................................................................. 1098HWELLS: Horizontal well completion option.................................................................................................................... 1099HXFIN: Local grid size ratios in x-direction...................................................................................................................... 1100HYDRHEAD: Sets reference data for output of hydraulic heads..................................................................................... 1101HYDRO: Define hydrocarbon type................................................................................................................................... 1102HYFIN: Local grid size ratios in y-direction...................................................................................................................... 1103HYKR: Enable rel perm hysteresis option........................................................................................................................ 1104HYMOBGDR: Change the way secondary drainage curves are computed in hysteresis runs with soluble gas ............. 1105HYPC: Enable cap pressure hysteresis option ................................................................................................................ 1106HYST: Enable hysteresis option ...................................................................................................................................... 1107HYSTCHCK: Check consistency between imbibition and drainage endpoints with the hysteresis option ...................... 1108HYSTJ: Enable hysteresis option using Jargon method.................................................................................................. 1109HYSTK: Enable hysteresis option using Killough method ............................................................................................... 1110HZFIN: Local grid size ratios in z-direction ...................................................................................................................... 1111IHOST: Groups LGRs together in the same process....................................................................................................... 1112IKRG-ORW: Imbibition end point relative permeabilities ................................................................................................. 1113IKU3P: Requests IKU 3-phase relative permeabilities..........................................................................