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ResMod: 3D Stochastic Reservoir Modeling
ResMod is (RC)2's geostatistical modeling package. It features a large suite of estimation and simulation techniques for generating reservoir models. ResMod models continuous (e.g., porosity), categorical (i.e., facies), and categorical-to-continuous (facies dependent) properties.
Support or questions can be addressed through email (resmod@rc2.com) or through our Denver office. If you have a fast internet connection and wish to see a gallery of ResMod results click here (ResMod Gallery).
Features:
- Very user friendly
- Handles both continuous (point properties e.g. porosity, permeability) and categorical variables (geological facies)
- Provides numerous estimation and conditional simulation techniques (48 and counting - complete list below) to provide users with a suite of techniques from which to choose depending on type of reservoir and data available;
- Provides estimation techniques for evaluation of local uncertainties;
- Designed to integrate different types of data (well-log, seismic, well test, production, geological expertise, digitized geological descriptions, outcrop information);
- Honors the differences in reliabilities between data types when doing integration;
- Full diagnostic capabilities allow users to inspect every step of model building
- Spatial models of correlation are area/region dependent and layer/sequence dependent
- Post processing capabilities to fine tune the reservoir model
- Stochastic transforms (cloud transform)
- Full 3D modeling capabilities (honors 3D spatial correlations)
- Handles the inclusions of faults in the model (see ResFrame)
- Handles deviated and horizontal wells (spatial analysis and modeling)
- Marker surfaces are generated from well and/or seismic surfaces or read in from other vendor packages(such as Zmap+ or CPS3D) through the ResPrep program.
- Extensive data analysis capabilities
- Generation of rotated or unrotated regular grids
- Generation of stratigraphic, truncated and onlap/offlap vertical grids
- Batch capabilities to generate hundreds of realizations for sensitivity/uncertainty analysis
- Interactive uncertainty viewing
- Very easy to add or remove information from database (adding logs, new wells, markers, etc...) through ResPrep
- Straightforward handling of seismic data (does not require any extensive data reformatting)
- Full dynamic memory allocation does not limit number of wells or seismic traces
- Output formats compatible with Eclipse, VIP, StrataModel, SEG-Y, CMG, GridGenr
- Open slot utilities to include proprietary spatial statistics algorithms (in development)
- Very sophisticated visualization capabilities (ResScape)
- Azimuth and Anisotropy templates
- Transparent links to Stratamodel
- Use of maps to provide model of spatial correlation directly (in development)
Algorithms:
Continuous variables
- Estimation algorithms:
- Inverse Distance to any power
- Ordinary Kriging
- Simple Kriging
- Ordinary Kriging with a trend (External Drift)
- Collocated Cokriging
- Co-Collocated Cokriging
- Indicator Kriging
- Indicator Collocated Cokriging
- Simulation algorithms:
- Sequential Gaussian Simulation (sGs)
- sGs with external drift
- sGs with Collocated Cokriging
- sGs with Co-Collocated Cokriging
- Pfield (Probability Field) Gaussian Simulation
- Pfield with external drift
- Pfield with collocated cokriging
- Pfield with co-collocated cokriging
- Sequential Indicator Simulation (SIS)
- SIS with Collocated Cokriging
- Pfield Indicator Simulation
- Pfield Indicator Simulation with Collocated cokriging
- Post Processing using Simulated Annealing
- Simulated Annealing with multiple objective functions
- Cloud transform
Categorical variables
- Estimation algorithms:
- Indicator Kriging (with or w/o soft data)
- Maximum probability classification
- Rescaled maximum probability classification
- Dynamic classification (Soares)
- Simulation algorithms:
- Sequential indicator Simulation
- Pfield indicator Simulation (with or w/o soft data)
- Truncated Gaussian with or without a linear trend
- Post Processing of estimation using Annealing
- Post Processing of simulation using Annealing
- Simulated Annealing
- Categorical to continuous (Facies to Phys. Property) using sGs
- Categorical to continuous using Collocated Cokriging
- Categorical to continuous using cloud transform
- Object-oriented algorithms:
- Channel simulation with crevasse splays with conditioning to wells, net pay, azimuth templates, seismic data, etc...
- Algal mounds
- Fan lobe systems with up to 5 separate facies and conditioning to seismic data, map information, etc...
- Boolean Deposits (Shales, Blankets)
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