Download as PDF, PPTX
More Related Content
Similar to Introduction to CMG Reservoir Simulator.pdf
Introduction to CMG Reservoir Simulator.pdf
- 1. Introduction to CMGReservoir Simulator By MehdiZallaghi Email: mmzallaghi@gmail.com 1 https://acpi.ir/
- 2.
- 3.
- 4. CMG component 4 LAUNCHER =File Management & Job Scheduling BUILDER = Simulation Model Creation/Editing WINPROP = PVT Phase Behavior Characterization IMEX = 3-phase, 4-components Black Oil Simulator GEM = 3-phase, n-component EOS Compositional Simulator STARS = 4-phase, n-component Thermal/CEOR Simulator CMOST = History Matching, Optimization, Sensitivity & Uncertainty Analysis COFLOW= Integrated Production & Reservoir Simulation RESULTS = X-Y Plots, Grid Visualization & Data Extraction https://acpi.ir/
- 5. CMG component 5 Generalized Equation-of-StateModel Reservoir Simulator (GEM) • GEM is a full equation-of-state compositional reservoir simulator with advanced features for modelling recovery processes where the fluid composition affects recovery. • GEM also models asphaltenes, coal bed methane and the geochemistry of the sequestration of various gases including acid Gases and CO2. IMplicit-EXplicit Black Oil Simulator (IMEX) • IMEX is a full -featured three-phase, four-component black oil reservoir simulator for modelling primary depletion and secondary recovery processes in conventional oil and gas reservoirs. • IMEX also models pseudo-miscible and polymer injection in conventional oil reservoirs, and primary depletion of gas condensate reservoirs, as well as the behavior of naturally or hydraulically fractured reservoirs. Steam, Thermal and Advanced processes Reservoir Simulator (STARS) • STARS is a thermal, K-value compositional, chemical reaction and geomechanics reservoir simulator ideally suited for advanced modelling of recovery processes involving the injection of steam, solvents, air and chemicals. https://acpi.ir/
- 6.
- 7.
- 8. 8 .dat - Simulatorinput file that contains all information that simulator requires to perform its flow calculations .inc - Additional input files referred to in .dat file .fhf - Historical data can be stored in this file type out - File output by the simulator containing information on the model in ASCII text .sr3 - Binary file containing the simulator results .Results – Template file for post processing in Results software Basic file extensions Simulator Data Organization https://acpi.ir/
- 9. Phase Behaviour &Fluid Property Program 9 Phase Behaviour Modelling & PVT Creation using WinProp •Characterize the heavy fraction of the petroleum fluids •Lump and split components •Match laboratory PVT data through regression •Simulate first and multiple contact miscibilities •Perform multiphase equilibrium calculations •Perform phase diagram generation Laboratory Results Output of Winprop • “Black-oil” PVT description (IMEX) • EOS PVT description (GEM) • K value PVT description (STARS) https://acpi.ir/
- 10. 10 Builder • User Interfacefor preparing reservoir simulation models • Use BUILDER to construct IMEX, GEM and STARS datasets Builder Sections I/O Control: Simulation or text results output, Restart, etc. Reservoir: Grid structure, properties, etc. Components: Fluid model Rock-Fluid: Relative permeability, capillary pressure, etc. Initial Conditions: Initial pressure/saturations, Pb, etc. Numerical: Convergence criteria, explicit/implicit, etc. Geomechanics (optional): Stress dependent properties, etc. Wells & Recurrent: Well trajectories, perforations, constraints, etc. Builder https://acpi.ir/
- 11. 11 Builder Geomodel: Create inBuilder Builder integrates all the static and dynamic properties to construct a reservoir model • Use BUILDER to CONSTRUCT IMEX, GEM and STARS datasets • Use BUILDER to CONVERT IMEX to GEM and STARS Builder can handle two different approaches for PVT modelling: • Laboratory Results ( Winprop) Typically include composition and experiments • Limited data (Correlations) Basic information related to gas and oil densities, Saturation Pressure and Reservoir Temperature is required https://acpi.ir/
- 12. IMEX Applications 12 Black Oil &Unconventional Simulator IMEX models primary and secondary oil recovery processes in conventional and unconventional reservoirs. Primary recovery Black Oil & Volatile Oil Dry & Wet Gas Gas Condensate Secondary recovery Waterflooding Polymer Flooding Dry Gas Injection Pseudo-miscible Displacement Gas Storage Abandoned Gas Fields Aquifer Storage Naturally Fractured Reservoirs Gas Oil Gravity Drainage (GOGD) Explicit Modelling of Hydraulically fractured wells with non-Darcy flow and Compaction IMEX https://acpi.ir/
- 13. GEM Applications 13 Compositional &Unconventional Simulator GEMis the world-leading Equation-of-State (EoS) reservoir simulator for compositional, chemical and unconventional reservoir modelling. Secondary Recovery Miscible & Immiscible gas injection (CO2, N2, Sour Gas, Flue Gas) in Continuous, WAG and SWAG modes Gas condensate production with dry/lean gas cycling to recover liquids VAPEX heavy oil recovery (isothermal and thermal) CBM & Shale Gas Production Multi-component desorption/adsorption, diffusion & coal swelling/shrinkage Gas Storage Abandoned Oil Reservoirs (to model light oil/condensate recovery) Tracking gas composition CO2 & Acid Gas Sequestration Oil reservoirs, Saline aquifers & Coal beds (ECBM) Geochemical reactions GAM
- 14. GEM Applications 14 Asphaltene modelling duringprimary and secondary recovery Precipitation, Flocculation, Deposition & Plugging Naturally Fractured Reservoirs Gas Oil Gravity Drainage (GOGD) in naturally fractured reservoirs CBM & Shale Reservoirs Explicit Modelling of Hydraulically fractured wells with non-Darcy flow & Compaction Single Plane Fractures (Vertical & Horizontal Wells in Tight reservoirs) Complex Fracture Networks ( Vertical & Horizontal Wells in Shale reservoirs) Coupled Surface Facilities Branched surface networks using hydraulics tables and FORGAS Looped surface networks coupled to GAP and PIPEPHASE Coupled Geomechanics GEOMECH GAM
- 15. STARS Applications 15 Thermal & AdvancedProcess Simulator STARS is the undisputed industry standard for the advanced modelling of recovery processes involving steam, solvents, air and chemicals. Thermal EOR Hot water flooding Steam flooding & Cyclic Steam Stimulation SAGD & ES-SAGD In-Situ Combustion (LTO & HTO) In-Situ Conversion of Oil Shale (Shell ISC process) Chemical EOR Emulsions, Gels, Foams ASP, SP, ASG (foam surfactant) MEOR LoSAL waterflooding Brightwater polymer flooding Gas Storage Salt Cavern Storage SATRS
- 16. STARS Applications 16 Naturally Fractured Reservoirs SteamOil Gravity Drainage (SOGD) in naturally fractured reservoirs Cold Heavy Oil Recovery (CHOPS model built with AITF) Natural Gas Hydrates Geothermal Complex Thermal Wellbore Completions Discretized Wells (transient, segregated flow of steam, oil, gas & water in single tubing horizontal wells) FlexWells (transient, segregated flow of steam, oil, gas & water in multiple tubing, undulating wells) Coupled Surface Facilities PIPEPHASE Coupled Geomechanics GEOMECH SATRS
- 17. 17 Intelligent Optimization &Analysis Tool CMOST • Use AI and Machine Learning with human expertise to identify optimal solutions • Data driven proxies allow for quick and interactive “what if ” analysis https://acpi.ir/
- 18. 18 CMOST Process CMOST CMOST Applications •Assisted History Matching • Optimization • Uncertainty Analysis https://acpi.ir/
- 19. RESULTS 19 • Automatic RepeatPlots • Analyze 2D and 3D results together in one window • Reporting Post-Processor: Visualization & Analysis https://acpi.ir/
- 20. Key Steps ina Simulation Study 20 Reservoir Characterization Model Selection Model Construction Model Validation Predictions Documentation Compare & Adjust History Macthing with CMOST Construct model with BUILDER RESULTS https://acpi.ir/
- 21.
- 22.