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COMPOSITIONAL & UNCONVENTIONAL RESERVOIR SIMULATOR

PRODUCT SPECS

BENEFITS

� Understand fluid property composition and behaviour

� Simulate complex reservoirs to identify optimal recovery processes

� Model naturally and hydraulically fractured reservoirs

� Increase estimated NPV through accurate phase behaviour models

� Optimize field, surface operating conditions and overall recovery

GEMTM is the world’s leading reservoir simulation software for compositional and unconventional modelling. GEM is an advanced general equation-of-state (EoS) compositional simulator that models the flow of three-phase, multi-component fluids. GEM will model any type of recovery process where effective fluid composition is important.

GEM accurately simulates structurally complex reservoirs and varying fluid combinations including processes in which the effects of inter-phase mass transfer (i.e. changing fluid phase composition) are important. GEM will effectively model laboratory scale studies, pilot areas, elements of symmetry, or full-scale field studies.

GEM is used extensively for modelling:

� Unconventional Oil, Gas and Liquids Rich Reservoirs (shale gas, shale liquids, tight oil or gas reservoirs, and CBM)

� Fractured Reservoirs (naturally or hydraulically fractured reservoirs, gas condensate wells, and gas-oil gravity drainage)

� Hydrocarbon and Acid Gas Injection � Dry Gas, Gas Condensate and Volatile Oil � Greenhouse Gas & CO2 Sequestration

GEM replicates the physics and chemistry of what’s happening in a reservoir to assist in optimizing field, surface operating conditions and overall recovery.

UNCONVENTIONAL OIL & GASUnconventional reservoirs such as shale gas, shale liquids and tight oil and gas reservoirs typically require long horizontal wells with multi-stage hydraulic fractures. GEM offers a flexible workflow for robustly modelling these fractures and the unique features of unconventional reservoirs such as: multi-component adsorption, geomechanical effects, multi-phase diffusion and non-Darcy effects. In North America, more than 60 oil and gas companies have chosen GEM to simulate their unconventional oil and gas reservoirs.

NATURALLY OR HYDRAULICALLY FRACTURED RESERVOIRSAccurately model the matrix-fracture transfer in fractured reservoirs with GEM’s dual porosity, dual permeability and gas phase diffusion capabilities. The advanced modelling capabilities for hydraulically fractured gas condensate wells provides explicit representation of fracture dimensions in grid design, along with non-Darcy flow and velocity-dependent relative permeability effects. Optimize well and fracture spacing efficiently using GEM without neglecting important reservoir effects so you can have confidence in your results.

Quickly and accurately model hydraulically fractured wells with different choices for fracture geometry. Optionally incorporate microseismic measurements to use as a basis for the stimulated volume.

PRODUCT SPECS

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ENHANCED OIL RECOVERYGEM simulates chemical flooding, miscible displacement and thermal recovery. Due to the complexity of miscible gas injection, GEM optimizes gas injection schemes and simulates the phase behaviour between oil and gas, thereby identifying dynamic miscibility and higher recovery rates. By using dynamic gridding features, GEM minimizes the effects of numerical dispersion associated with modelling the mixing of fluids in the reservoir. Use GEM to model full-field or hybrid low salinity waterfloods, as it can model the fundamental mechanisms – ion exchange, geochemistry, wettability – essential for low salinity processes.

GEOMECHANICSGEM includes a rigorous, iteratively-coupled 3D geomechanics module, as well as, integration with third party packages for modelling subsidence, compaction and dilation behaviour that occurs during thermal or advanced processes recovery method. The GEM geomechanical model simulates stress-induced phenomena, such as: plastic deformation and fracturing of reservoir rock, shear dilatancy of produced and injected fluids, near wellbore formation collapse and sand production.

CBM AND ENHANCED CBMGEM, the industry leader for CBM simulation, provides accurate early-time water and methane production predictions, as well as multi-component production predictions for enhanced CBM (ECBM) recovery. GEM accurately models the physics of asphaltene -related effects (precipitation, flocculation, deposition and plugging) associated with geochemical reactions when CO

2 is injected

into a CBM field.

SURFACE SEPARATOR FACILITIESGEM models surface separator facilities to provide insight into the complexities of the subsurface, optimize separator conditions for the best overall recovery and control the intermediate hydrocarbon stream at surface. GEM can also model gas plant stages with complex separator trains to correctly predict oil and gas surface volumes after running through multiple stages.

GREENHOUSE GAS SEQUESTRATIONGEM realistically models the long-term effects of CO

2 injection into a geological formation or saline aquifer. GEM incorporates

geochemical reactions and can model CO2 mineral trapping, calcite dissolution and tracks the changes to reservoir mineralogy

when CO2 is injected into the formation. Using a coupled flow-geomechanical model, GEM can monitor cap rock integrity during

the injection process.

2014 NEW FEATURES

� Increased chemical EOR capabilities with new polymer flood options

� New hydraulic fracture keywords enable multiple fracture stages or wells to be created

� Easily modify hydraulic fracture and matrix properties with block groups

� Quickly define irregular aquifer boundaries

� Scale relative permeability and capillary pressures with the new 3-point, end point scaling

iFOR MORE INFORMATION

PLEASE CONTACT marketing@cmgl.ca

WHY CMG?

Computer Modelling Group Ltd (CMG) is the leading supplier of advanced oil and gas recovery process simulation software. CMG offers products for Black Oil, Compositional and Thermal/Chemical reservoir simulation, Assisted History Matching and Optimization, and visualization software to best understand simulation results. Experienced support teams are stationed in offices around the world to provide the best software, training and client support for advanced recovery process simulation.

CMG is devoted to providing the ultimate customer experience through its commitment to R&D investment, superior technology, and support network.

1. R&D Investment: With more than half our employees devoted to R&D, CMG exceeds its customer needs. CMG reinvests approximately 20% of its annual revenue back into R&D which results in significant expansion of the R&D team to further innovation and drive technology forward.

2. Superior Software Technology: CMG, the leader in enhanced oil recovery, delivers software that is easier to use and provides the most accurate results for unconventional, compositional, advanced IOR/EOR and conventional processes.

3. Customer Experience: CMG provides experienced technical sales and support personnel, located around the world. CMG engineers deliver same-day turnaround for support calls, small industry relevant training and a personalized customer experience.

Results 3D image of a CO2 EOR process showing Asphaltene

Precipitation (blocks) relative to the miscible CO2 front

(orange surfaces).