ENHANCE & ACCELERATE SENSITIVITY ANALYSIS, HISTORY MATCHING, OPTIMIZATION & UNCERTAINTY ANALYSIS

WHY CMG?CMG is devoted to providing the ultimate customer experience with our commitments to:

• R&D investment• Superior software

technology• Unparalleled user

support

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CMOST PRODUCT OVERVIEW

Engineers will realize a step-change in productivity and usefulness when integrating CMOST™ into any reservoirsimulation project. In conjunction with CMG simulators, engineers can effi ciently analyze any primary, secondaryor enhanced recovery schemes to maximize recovery, fl ow rates or net present value (NPV), CMOST helps optimizethe placement of wells, frac spacing, infi lls, injection rates, pressure maintenance, chemical fl oods, etc., usingvirtually any parameter that is part of the reservoir model, to improve economics, reduce risk and quantifyuncertainty.

CMOST is a state-of-the-art reservoir engineering tool, employing innovative experimental design, sampling andoptimization techniques to effi ciently determine reservoir parameters defi ning production and recovery of oil and gas fi elds. CMOST will increase the value of reservoir simulation while reducing the duration of reservoir studies.

BENEFITS• Optimize NPV under

reservoir uncertainty

• Increase confi dencein forecasts

• Increase asset team effectiveness through optimization

• Improves effi ciencyof reservoir engineers

• Create more accurate models in dramatically less time

• Optimize a fi eld development planwith reduced time

• Speed up history matching

• Quantify uncertainty and sensitivity

DESCRIPTION & APPLICATIONSCMOST is a statistical, science-driven reservoir simula-tion automation tool that generates simulation runsautomatically from the base model, then submits and analyzes the runs, for multiple combinations of reservoir parameters. CMOST improves a reservoir engineer’seffectiveness by eliminating the time to generate hundreds of scenarios and allows the engineer to focus on results interpretation and evaluation. CMOST is fully coupled to CMG’s robust reservoir simulators – IMEX™, GEM™ and STARS™ - enabling it to history match and optimize any reservoir scenario.

CMOST dispatches multiple, simultaneoussimulation runs to the nodes of a cluster, to multiple PCs on a network, or even to multiple cores on a single PC. CMOST interprets the results of these runs, eliminates non-physical solutions and narrows the search space rapidly to reach the ultimate best case, while avoiding the local maxima and minima.Solutions to reservoir models with trillions of possiblecombinations and permutations can often be found in less than a thousand runs.

SENSITIVITY ANALYSISSensitivity analysis (SA) is used to determine howsensitive an objective function is to different parameters and their ranges in values. More parameters yieldan exponentially larger search space, so onlyparameters with most impact should be used.Study the sensitivity to determine which parameters can be eliminated during the history match processor may need further fi eld investigation to narrow the possible range. Conduct a SA to confi dently identify data inconsistencies, or to identify areas to investigate and to obtain additional or more accurate data.

CMOST History Match Result. Demonstrates how intelligent algorithms work with the engineer’s inputs to minimize history match error.

INDUSTRY EXAMPLES• Two million parameter search space

converges in 120 runs

• Six-month manual history match completedin one-month

• Optimization with 25,000 possible runsmaximized in 290 runs

• 30% increase in NPV with two-weeksof CMOST optimization

www.cmgl.ca/cmost

+1.403.531.1300, INFO@CMGL.CACALGARY HOUSTON BOGOTA CARACAS LONDON DUBAI KUALA LUMPUR™Trademark of Computer Modelling Group Ltd. Copyright © 2012 Computer Modelling Group Ltd. 12.CM.P3

CMOST PRODUCT OVERVIEW

2012 NEWFEATURES• Data management

improvements for large fi eld scale projects

• Effi ciently maximize hardware and license availability with the updated scheduler

• New CMOST Master File (CMM) EDITORto improve effi ciency and streamline interaction with Builder

• Integrate geological realizations to perform “closed loop” history matching workfl ow

HISTORY MATCHINGHistory matching (HM) involves the adjustment of thereservoir simulation model to accurately reproduce past reservoir behaviour and then simulate future behaviour with increased confi dence.The CMOST semi-automated HM workfl ow, uingexperimental design methods, identifi es the best match(es) and identifi es the variability parameters in the minimum number of runs. CMOST learns which values produce the best results, enabling it to dramatically reduce the number of runs required to fi nd the optimal solution. This is the fastest technique for accuratehistory match(es) and reliable production forecasts.

OPTIMIZATIONThe CMOST optimization methodology includes: designed exploration controlled evolution (DECE); multi-objective function optimization; particle swarm optimization; random search; brute force search; and uncertainty assessment. Use CMOST to optimize NPV, cumulative steam oil ratio (cSOR), well placement, frac spacing and design, completion design, recovery factor and cumulative oil. CMOST’s power lies in modern experimental design and optimization algorithms which varies dozens to hundreds of parameterssimultaneously to fi nd the optimal solution – something a human cannot do.

UNCERTAINTY ANALYSISWithin reservoir characterization, uncertainty exists when the variables in the data set may stray from the predicted values. The CMOST uncertainty analysis workfl ow allows engineers to assess the reliabilityof predications and to understand the impact thoseuncertainties will have on NPV of the optimum case.

CMOST Optimization Result. Demonstrates how intelligent algorithms work with the engineer’s inputs to optimize NPV.

WHY CMG?Computer Modelling Group Ltd. (CMG) is the leading supplier of advanced reservoir simulation software forconventional and unconventional reservoirs. CMG offers black oil, compositional, thermal and chemical reservoir simulators, assisted history matching and optimization, sensitivity and uncertainty tools, all augmented withvisualization to interpret and understand simulation results. Experienced engineering teams in offi ces aroundthe world provide the best software user support, training and technical assistance.

CMG is devoted to providing the ultimate customer experience through our commitments to R&D investment,superior software technology, and unparalleled user support.

COMMITTED TO R&D INVESTMENT: CMG reinvests approximately 20% of its annual revenue into product research and development (R&D). With more than half of our employees devoted to these tasks, CMG routinely exceeds ourcustomers’ expectations. CMG is proud of our academic strength with 50% of our employees holding a Master’s degree or higher qualifi cation.

COMMITTED TO DELIVERING SUPERIOR SOFTWARE TECHNOLOGY: CMG, the leader in enhanced oil recovery simulation, delivers software that is easier to use and provides the most accurate results for compositional,conventional, unconventional and advanced IOR/EOR processes. CMG software is the industry standard forusability, physics, robustness and performance.

COMMITTED TO UNPARALLELED USER SUPPORT: CMG provides experienced technical sales and supportpersonnel around the world, priding itself on a standard “one-day response rate” for technical support questions.In addition, CMG offers industry leading software training courses in our Calgary, Caracas, Dubai, Houstonand London offi ces.