technology workflow map

exploration & production divisionvia Emilia, 120097 San Donato Milanese - Milan ItalyPh.: +39.02.520.1eni.com

“Unless you expect the unexpected you will never find truth, for it is hard to discover and hard to attain”Heraclitus

For further information:geology vice presidentluca.savini@eni.com

printed in June 2010

Since 2010 eni has been relying its communication to young talents from all over the world in various disciplines.The cover art is made by Valentina Russello, a young Italian illustrator.

eni.com

geology leading edge technologieseni exploration & production

when technology meets the geological vision

New discoveries are based both on past 75 years experience and on new geological concepts, that is, on a new “geological vision”.

The development of new concepts is based on a deep understanding of field and laboratory hard data, advanced geological numerical and experimental modelling and the cumulative, shared knowledge of the geological community.

Successful exploration is not a matter of chance, but the result of appropriate risk management, analysis of unexpected outcomes and the optimization of the geological evaluation based on a deep understanding of the earth.

Global e&p activity in new areas and new concepts requires greater technical flexibility and integration.

As a world leader in interpretative and geological modelling technologies, eni e&p combines G&G data, geological field surveys and novel proprietary technologies from our in-house laboratories to produce comprehensive integrated studies.

sedimentology and stratigraphy modelling» 3D forward modelling of extension, geometry and volume of sedimentary sequences:

• supportofexplorationwithsourceandreservoirmultiplescenarios distributionsatbasinscale•predictionofthelocation,extension,geometryandvolumeofreservoirbodies atafieldscale

» Process-based modelling of 3D deepwater meandering channel systems and associated deposits:

• estimateofnet/grossandreservoirfaciesdistribution/continuitywithinsinuous channelsystemsatthereservoirscalethroughtime

structural dynamic modelling Model of the processes that affect basin evolution: rock properties, sedimentation erosion, extension/compression, compaction, salt injection/evacuation, faults:• validationofrestorations• reconstructionofthethermalhistory• evaluationofthestresshistory

advanced analogue simulators Computer controlled sand box apparatus:• 4Devolutionofstructurallycomplexsedimentarybasins• conceptualgeologicalmodelsforpoorlyknownexplorationarea

Dionisos-3DdevelopedwithIFP

Turmy developed with École des Mines

STructural finite Element Analysis Modelling (STEAM)

Computer controlled sand box simulator developed with University of Parma

rock microcharacterisationElaboration and computation of the Reservoir Efficiency Index (REI) a measure of the risk factors for reservoir quality:• reservoirqualityevaluation&predictionbasedontheirdepositional characteristicandsubsequentevolution

sedimentology 3D advanced visualization3D viewer importing and visualizing all kind of geo-referenced data in 1D, 2D and 3D domain

biostratigraphyEstimate of the depositional paleo-water depths, based on the faunal content of sedimentary rocks

minero-chemostratMetodology based on the mineralogical and chemical analyses:• providesverticalandhorizontalzoninginsuccessionswhere theusualstratigraphictoolsfail

REI - Reservoir Efficiency Index

GEometry of Carbonate Objects (GECO) 3D viewer

Ecolog - paleobatimetry estimation

Minero-chemostratigraphy section from cuttings

Proprietary methodology and software package modelling all the geological and geochemical processes:• prospect ranking defined by the probabilistic distribution of trapped hydrocarbons (volumes, types and quality)• overpressure prediction & centroid definition

fracture analysisGeological driven tools for the statistical analysis of interpreted lineaments from continuity cube slices:• inputforfracturedreservoirmodels• fracturedistributionatdifferentscales• evaluationofthedeformationhistory

Fracture probability map

petroleum system modelling

Gas filling probability mapMigration & accumulation map Pressure map

Simba Plus

Toughreact - Rockware Software

quantitative modelling of reservoir propertiesMethodology and software tools modelling the diagenetic processes:• assessementoftheconceptualmodelintermsofmassbalance,kineticand thermodynamic• estimateandproductionoftheeffectsofthediageneticprocessonporosity

near real time formation evaluation and reservoir characterisationTechnology pioneered and developed by eni since the 1980 for analysing and interpreting gas content from drilling mud measured at the well site:• HCcharacterisation• optimizationofdataacquisition• postwellevaluation

production allocationGeomolecular technologies: • highresolutionmolecularanalysis• monitoringofproductionincomplexenvironments(offshore,smartcompletion) whenProductionLoggingTool(PTL)isnotsuitable

Production allocation workflow

oil quality predictionA new method based on quantitative molecular alteration enables an improved assessment of petroleum biodegradation:• predictionofAPIgravitiesofcrudeoilsevenwhenavailableinmicroquantities• differentiationofin-reservoiralterationmechanisms

unconventional geochemistry tools • molecularmigrationindexestoevaluaterelativemigrationdistances• newage-specificbiomarkerstoimprovethedefinitionofthegeneratingsource• presence,distribution,quality,quantity,originandmaturityofliquid hydrocarbonsinalltypeofcuttingsandcoresregardlessofwheremud additiveswereusedduringdrilling

In-reservoir alteration

Gas while drilling

geological laboratories

Biodegradation analysis

Geologicallaboratoriesofeniestablishedin1937