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Takeshi Matsumoto

INPEX Corporation

GEM™ is the best simulator for CCS, accurately modeling physics, geomechanics, and CO₂ behavior

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Takeshi Matsumoto

INPEX Corporation

GEM™ is the best simulator for CCS, accurately modeling physics, geomechanics, and CO₂ behavior

Nur Myra Rahayu Razali
Nur Myra Rahayu Razali

PETRONAS Research Sdn Bhd

I’m Myra Razali, Lead Reservoir Engineer for EOR and CCUS at Petronas Research, working on reservoir simulation for chemical EOR processes such as polymer and surfactant flooding, as well as CO₂ storage evaluations. The solutions from Computer Modelling Group (CMG) have been very valuable in helping us model complex recovery processes and assess different development strategies. The support from the CMG team has also been excellent, especially Nader Ghadami, who has been very responsive and helpful in addressing technical challenges. Overall, the combination of powerful simulation tools and strong technical support is what makes CMG stand out.
Nur Myra Rahayu Razali
Nur Myra Rahayu Razali

PETRONAS Research Sdn Bhd

I’m Myra Razali, Lead Reservoir Engineer for EOR and CCUS at Petronas Research, working on reservoir simulation for chemical EOR processes such as polymer and surfactant flooding, as well as CO₂ storage evaluations. The solutions from Computer Modelling Group (CMG) have been very valuable in helping us model complex recovery processes and assess different development strategies. The support from the CMG team has also been excellent, especially Nader Ghadami, who has been very responsive and helpful in addressing technical challenges. Overall, the combination of powerful simulation tools and strong technical support is what makes CMG stand out.
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Eghbal Motaei

PETRONAS

As Principal Reservoir Engineer in PETRONAS, I’m pleased to share our experience working with CMG’s simulation software and technical support during the Megah subsurface evaluation and development studies. The support from CMG team was exceptional, especially Nader Ghadami. The Megah project involved a technically challenging carbonate reservoir system, requiring close integration of well test interpretation, pressure transient analysis, and dynamic single well modelling to understand reservoir connectivity, tested volume distribution, and production sustainability. CMG’s simulation tools played a key role in supporting these evaluations by enabling robust numerical modelling and sensitivity analysis aligned with the geological and pressure data available from the well. That enabled our team to successfully upgrade the single well model to full field. Throughout the study, CMG provided reliable technical support and responsive engagement, supporting the modelling workflow from early concept screening through to structured technical reviews and internal decision forums. Their team demonstrated a strong understanding of carbonate reservoir behaviour, well test dynamics, and model based uncertainty evaluation, while maintaining a collaborative and professional working relationship with our subsurface team. The use of CMG’s tools and technical input contributed meaningfully to our ability to interpret Megah test results, assess reservoir connectivity, and evaluate development relevant scenarios in a technically consistent and auditable manner. Based on our experience, we are pleased to recommend CMG to teams undertaking complex subsurface and dynamic modelling studies, and we look forward to continued collaboration as our projects progress.

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Eghbal Motaei

PETRONAS

As Principal Reservoir Engineer in PETRONAS, I’m pleased to share our experience working with CMG’s simulation software and technical support during the Megah subsurface evaluation and development studies. The support from CMG team was exceptional, especially Nader Ghadami. The Megah project involved a technically challenging carbonate reservoir system, requiring close integration of well test interpretation, pressure transient analysis, and dynamic single well modelling to understand reservoir connectivity, tested volume distribution, and production sustainability. CMG’s simulation tools played a key role in supporting these evaluations by enabling robust numerical modelling and sensitivity analysis aligned with the geological and pressure data available from the well. That enabled our team to successfully upgrade the single well model to full field. Throughout the study, CMG provided reliable technical support and responsive engagement, supporting the modelling workflow from early concept screening through to structured technical reviews and internal decision forums. Their team demonstrated a strong understanding of carbonate reservoir behaviour, well test dynamics, and model based uncertainty evaluation, while maintaining a collaborative and professional working relationship with our subsurface team. The use of CMG’s tools and technical input contributed meaningfully to our ability to interpret Megah test results, assess reservoir connectivity, and evaluate development relevant scenarios in a technically consistent and auditable manner. Based on our experience, we are pleased to recommend CMG to teams undertaking complex subsurface and dynamic modelling studies, and we look forward to continued collaboration as our projects progress.

Emre Artun
Emre Artun

Sultan Qaboos University

My graduate students and I selected the CMG GEM reservoir simulator to model and predict CO₂ mineralization in mafic and ultramafic formations for permanent carbon storage in the subsurface. With over twenty years of experience using CMG's cutting-edge reservoir simulators, we highly value CMG-GEM’s accuracy, technical robustness, continuous R&D advancements, and strong user support. CMG has generously supported this work by providing both server-based and standalone academic licenses, enabling the efficient execution of numerous complex simulation scenarios. This capability has been essential for evaluating the effects of temperature, pressure, porosity, permeability, mineralogy, geochemical reactions, geomechanical factors, and injection strategies on CO₂ mineralization. Simulations performed using CMG GEM form the analytical foundation of ongoing graduate theses (M.S. and Ph.D.). The resulting datasets are also being used to develop machine-learning-based proxy models for computationally efficient reactive flow analysis under uncertainty. CMG’s comprehensive technical documentation and responsive support have been instrumental in model setup, calibration, and interpretation. Access to an industry-standard simulator has significantly enhanced the scientific rigor and practical relevance of our research. We gratefully acknowledge CMG’s continued support of our research and educational activities and strongly recommend CMG to academic, research institutions as well as energy companies engaged in energy transition and decarbonization-focused reservoir modeling.
Emre Artun
Emre Artun

Sultan Qaboos University

My graduate students and I selected the CMG GEM reservoir simulator to model and predict CO₂ mineralization in mafic and ultramafic formations for permanent carbon storage in the subsurface. With over twenty years of experience using CMG's cutting-edge reservoir simulators, we highly value CMG-GEM’s accuracy, technical robustness, continuous R&D advancements, and strong user support. CMG has generously supported this work by providing both server-based and standalone academic licenses, enabling the efficient execution of numerous complex simulation scenarios. This capability has been essential for evaluating the effects of temperature, pressure, porosity, permeability, mineralogy, geochemical reactions, geomechanical factors, and injection strategies on CO₂ mineralization. Simulations performed using CMG GEM form the analytical foundation of ongoing graduate theses (M.S. and Ph.D.). The resulting datasets are also being used to develop machine-learning-based proxy models for computationally efficient reactive flow analysis under uncertainty. CMG’s comprehensive technical documentation and responsive support have been instrumental in model setup, calibration, and interpretation. Access to an industry-standard simulator has significantly enhanced the scientific rigor and practical relevance of our research. We gratefully acknowledge CMG’s continued support of our research and educational activities and strongly recommend CMG to academic, research institutions as well as energy companies engaged in energy transition and decarbonization-focused reservoir modeling.
Chinedu Junior Okere
Chinedu Junior Okere

Researcher at Department of Petroleum Engineering, University of Houston

I am a researcher in petroleum engineering at the University of Houston, currently working on integrated modeling for CO₂ storage and emerging energy systems. CMG’s CoFlow simulator has been instrumental in our work by enabling fully integrated surface–wellbore–reservoir modeling. This capability has allowed us to move beyond conventional standalone reservoir simulation and capture critical system-level effects such as wellbore flow behavior, phase transitions, pressure losses, and injectivity constraints. The training, licensing support, and responsiveness from the CMG team have also been very helpful in accelerating our research and implementation. The best thing about CoFlow, is its ability to provide a unified, system-level framework that connects surface facilities, wellbore dynamics, and reservoir behavior. This integrated approach delivers more realistic and reliable predictions compared to conventional methods. We have validated this through comparative studies and successfully extended its application to CO₂ storage, hydrogen storage, and field-based case studies. Overall, CoFlow represents a significant advancement in simulation capability, and we see strong potential for it to become a standard tool for integrated modeling in carbon storage and energy transition projects.
Chinedu Junior Okere
Chinedu Junior Okere

Researcher at Department of Petroleum Engineering, University of Houston

I am a researcher in petroleum engineering at the University of Houston, currently working on integrated modeling for CO₂ storage and emerging energy systems. CMG’s CoFlow simulator has been instrumental in our work by enabling fully integrated surface–wellbore–reservoir modeling. This capability has allowed us to move beyond conventional standalone reservoir simulation and capture critical system-level effects such as wellbore flow behavior, phase transitions, pressure losses, and injectivity constraints. The training, licensing support, and responsiveness from the CMG team have also been very helpful in accelerating our research and implementation. The best thing about CoFlow, is its ability to provide a unified, system-level framework that connects surface facilities, wellbore dynamics, and reservoir behavior. This integrated approach delivers more realistic and reliable predictions compared to conventional methods. We have validated this through comparative studies and successfully extended its application to CO₂ storage, hydrogen storage, and field-based case studies. Overall, CoFlow represents a significant advancement in simulation capability, and we see strong potential for it to become a standard tool for integrated modeling in carbon storage and energy transition projects.
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Anirban Banerjee

Senior Reservoir Engineer, GaffneyCline - Baker Hughes

I have been utilizing CMG-IMEX/GEM/STARS for chemical EOR and CCS/CO2-EOR projects in the Middle East. The CMG support team has consistently been incredibly helpful, providing prompt suggestions, effective workarounds, and valuable technical guidance.
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Anirban Banerjee

Senior Reservoir Engineer, GaffneyCline - Baker Hughes

I have been utilizing CMG-IMEX/GEM/STARS for chemical EOR and CCS/CO2-EOR projects in the Middle East. The CMG support team has consistently been incredibly helpful, providing prompt suggestions, effective workarounds, and valuable technical guidance.
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Alireza Kazemi

Associate Professor, Sultan Qaboos University

CMG solutions and technical support have greatly enhanced our teaching by providing students with hands-on experience using industry-standard reservoir simulation tools. The recent Thermal EOR workshop delivered by Eng. Kavish Grover was highly engaging and technically valuable, effectively linking theory with real-field applications. The best thing about CMG is its strong commitment to education, excellent technical support, and robust simulation software that prepares students for professional practice.

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Alireza Kazemi

Associate Professor, Sultan Qaboos University

CMG solutions and technical support have greatly enhanced our teaching by providing students with hands-on experience using industry-standard reservoir simulation tools. The recent Thermal EOR workshop delivered by Eng. Kavish Grover was highly engaging and technically valuable, effectively linking theory with real-field applications. The best thing about CMG is its strong commitment to education, excellent technical support, and robust simulation software that prepares students for professional practice.

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Chima Justin Ezekiel

Assistant Professor, University of Calgary

CMG gave us the power to model Enhanced Geothermal System in just 9 weeks, helping us to earn global recognition and the technical innovation excellence award.
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Chima Justin Ezekiel

Assistant Professor, University of Calgary

CMG gave us the power to model Enhanced Geothermal System in just 9 weeks, helping us to earn global recognition and the technical innovation excellence award.
Video Poster

Charles Gorecki

CEO, EERC

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Angelos Calogirou

Subsurface Manager, Harbour Energy

CoFlow™ and IMEX™ are a power duo for solving flow assurance and maximizing production.

At Zama, our field poses significant challenges that demand highly accurate, high-resolution simulation. With CMG’s CoFlow and IMEX, we seamlessly model flow, pressure, and temperature across the reservoir and production system.

This powerful combination helps us tackle flow assurance issues while keeping production optimized.

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Angelos Calogirou

Subsurface Manager, Harbour Energy

CoFlow™ and IMEX™ are a power duo for solving flow assurance and maximizing production.

At Zama, our field poses significant challenges that demand highly accurate, high-resolution simulation. With CMG’s CoFlow and IMEX, we seamlessly model flow, pressure, and temperature across the reservoir and production system.

This powerful combination helps us tackle flow assurance issues while keeping production optimized.

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Jalal Jalali

VP, Subsurface, BLUE SKY INFRASTRUCTURE

Accurate results. Scalable models. Exceptional support. That’s why we trust CMG’s GEM™.

GEM has consistently delivered accurate, stable, and efficient results that have enabled us to design, optimize, and de-risk our CCS project. It is indispensable in understanding CO₂ plume behavior, trapping mechanisms, and reservoir integrity over the project lifecycle.

GEM’s scalability for large, complex 3D models has allowed our team to simulate both short-term injection performance and long-term storage security with confidence. In addition to the tool itself, another strength of CMG is its support team, which have been instrumental in our success.

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Jalal Jalali

VP, Subsurface, BLUE SKY INFRASTRUCTURE

Accurate results. Scalable models. Exceptional support. That’s why we trust CMG’s GEM™.

GEM has consistently delivered accurate, stable, and efficient results that have enabled us to design, optimize, and de-risk our CCS project. It is indispensable in understanding CO₂ plume behavior, trapping mechanisms, and reservoir integrity over the project lifecycle.

GEM’s scalability for large, complex 3D models has allowed our team to simulate both short-term injection performance and long-term storage security with confidence. In addition to the tool itself, another strength of CMG is its support team, which have been instrumental in our success.

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Salim Altubi

Msc Student - SQU

Using CMG STARS for thermal reservoir simulation has been an excellent experience. The software stands out for its user-friendly interface, which makes complex simulation tasks much more approachable. Even for advanced modeling scenarios, the workflow feels intuitive and efficient, allowing me to focus on the technical aspects rather than struggling with the tool itself. The simulation capabilities are robust, particularly for thermal recovery processes, and the results are both reliable and insightful. CMG STARS provides the flexibility to handle detailed reservoir characteristics while maintaining clarity in setup and output. This balance between powerful functionality and ease of use is what makes it such a valuable tool for reservoir engineers and researchers.
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Salim Altubi

Msc Student - SQU

Using CMG STARS for thermal reservoir simulation has been an excellent experience. The software stands out for its user-friendly interface, which makes complex simulation tasks much more approachable. Even for advanced modeling scenarios, the workflow feels intuitive and efficient, allowing me to focus on the technical aspects rather than struggling with the tool itself. The simulation capabilities are robust, particularly for thermal recovery processes, and the results are both reliable and insightful. CMG STARS provides the flexibility to handle detailed reservoir characteristics while maintaining clarity in setup and output. This balance between powerful functionality and ease of use is what makes it such a valuable tool for reservoir engineers and researchers.
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Ridhwan Affandi

Researcher (Reservoir Technology) CCUS, PETRONAS RESEARCH SDN BHD

Nader Gadhami provided exceptional support during our CO2-brine relative permeability study. His guidance was crucial in implementing an innovative coreflood simulation workflow using CMG GEM, which allowed us to simulate CT scan saturation profiles slice by slice and directly integrate them with our experimental data. This capability greatly improved our interpretation of gas–brine relative permeability by accurately capturing saturation distribution, differential pressure behavior, and gas production trends. He also helped us optimize our workflow using CMOST, enabling us to efficiently refine our history matching and compositional simulation setup. Thanks to his expertise and the advanced capabilities of GEM and CMOST, we successfully completed our project and significantly improved our understanding of CO2-brine relative permeability as well as on the advanced coreflood simulation workflows.
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Ridhwan Affandi

Researcher (Reservoir Technology) CCUS, PETRONAS RESEARCH SDN BHD

Nader Gadhami provided exceptional support during our CO2-brine relative permeability study. His guidance was crucial in implementing an innovative coreflood simulation workflow using CMG GEM, which allowed us to simulate CT scan saturation profiles slice by slice and directly integrate them with our experimental data. This capability greatly improved our interpretation of gas–brine relative permeability by accurately capturing saturation distribution, differential pressure behavior, and gas production trends. He also helped us optimize our workflow using CMOST, enabling us to efficiently refine our history matching and compositional simulation setup. Thanks to his expertise and the advanced capabilities of GEM and CMOST, we successfully completed our project and significantly improved our understanding of CO2-brine relative permeability as well as on the advanced coreflood simulation workflows.
Robert Dombrowski
Robert Dombrowski

Director of Subsurface and Modeling Excellence --Geokiln

CMG STARS gives us the platform to model complex thermal and chemically reactive systems with dynamic flows. We’ve used CMOST as a tool to quantify the potential production ranges spanning a set of interacting uncertainties for the reservoir conditions and ranges in the reactivity for the designed chemical reactions. It is highly impossible to find another platform that does this.

Robert Dombrowski
Robert Dombrowski

Director of Subsurface and Modeling Excellence --Geokiln

CMG STARS gives us the platform to model complex thermal and chemically reactive systems with dynamic flows. We’ve used CMOST as a tool to quantify the potential production ranges spanning a set of interacting uncertainties for the reservoir conditions and ranges in the reactivity for the designed chemical reactions. It is highly impossible to find another platform that does this.

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Silvya Dewi Rahmawati

Chairman IATMI Komda Bandung

I am the chairman of IATMI Komda Bandung and I am an associate professor at Petroleum Engineering Department ITB. CMG is very helpful for my students to study the reservoir modeling. CMG has a great feature for optimization.

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Silvya Dewi Rahmawati

Chairman IATMI Komda Bandung

I am the chairman of IATMI Komda Bandung and I am an associate professor at Petroleum Engineering Department ITB. CMG is very helpful for my students to study the reservoir modeling. CMG has a great feature for optimization.

Victor Leonardo Teja
Victor Leonardo Teja

UNAM

Having access to the CMG software suite for academic purposes at the School of Engineering of the National Autonomous University of Mexico (UNAM) has represented a significant boost to the teaching of petroleum reservoir simulation. This tool has strengthened the training of undergraduate and graduate students, enabling them to develop technical skills aligned with industry standards at both the national and international levels. As a result, our students graduate better prepared to face the challenges of the professional environment and the evolving dynamics of the energy sector.
Victor Leonardo Teja
Victor Leonardo Teja

UNAM

Having access to the CMG software suite for academic purposes at the School of Engineering of the National Autonomous University of Mexico (UNAM) has represented a significant boost to the teaching of petroleum reservoir simulation. This tool has strengthened the training of undergraduate and graduate students, enabling them to develop technical skills aligned with industry standards at both the national and international levels. As a result, our students graduate better prepared to face the challenges of the professional environment and the evolving dynamics of the energy sector.
Vishal Dhar
Vishal Dhar

Ph.D scholar in Indian Institute of Technology Guwahati, India

Hello. I am Vishal Dhar, a research scholar from Indian Institute of Technology Guwahati, India. My research work is focused on CO2-EOR and storage. My recent experience with CMG simulation software was excellent. The platform is highly efficient, user-friendly, and very powerful for reservoir modeling and EOR studies. The course was well-structured and informative, providing valuable practical insights and hands-on training that greatly enhanced my understanding and confidence in using the software for research applications. CMG’s biggest strength is its ability to simulate realistic and complex reservoir behavior with high accuracy, making it one of the best tools for EOR and CO₂ storage studies.
Vishal Dhar
Vishal Dhar

Ph.D scholar in Indian Institute of Technology Guwahati, India

Hello. I am Vishal Dhar, a research scholar from Indian Institute of Technology Guwahati, India. My research work is focused on CO2-EOR and storage. My recent experience with CMG simulation software was excellent. The platform is highly efficient, user-friendly, and very powerful for reservoir modeling and EOR studies. The course was well-structured and informative, providing valuable practical insights and hands-on training that greatly enhanced my understanding and confidence in using the software for research applications. CMG’s biggest strength is its ability to simulate realistic and complex reservoir behavior with high accuracy, making it one of the best tools for EOR and CO₂ storage studies.
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Jamie Gomez

Frontera Energy Corp

Thanks to the versatile and powerful CMOST™, we were able to meet our twin objectives of EOR and CCS using the 85% CO2 byproduct in the Jandaya Field study. This first conceptual study is the beginning of evaluating an improved recovery project. CMOST helped us to have a quick and reliable assessment.
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Jamie Gomez

Frontera Energy Corp

Thanks to the versatile and powerful CMOST™, we were able to meet our twin objectives of EOR and CCS using the 85% CO2 byproduct in the Jandaya Field study. This first conceptual study is the beginning of evaluating an improved recovery project. CMOST helped us to have a quick and reliable assessment.
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Jairo A. Sepulveda Gaona

Reservoir Simulation Teacher

First of all, we want to express on behalf of the academic community of the Universidad Surcolombiana our thanks to the Computer Modelling Group Ltd. Company for the training received during June 03 & 04, 2025 at the facilities of our university, Sala CPIP-USCO. Secondly, we are very grateful for his valuable collaboration and for the excellent work done by Mr. José Santos during the training course on the use of the STARS™ Module of the CMG platform; we especially want to highlight the great pedagogical and technical skills and the interest of Mr. José Santos. It was an excellent presentation that will undoubtedly result in the academic quality of our graduates and will be an important pillar for our research projects. Thanks again, to you, to Eng. Argenis Álvarez R. and Eng. José Santos for the time provided and the collaboration provided.

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Jairo A. Sepulveda Gaona

Reservoir Simulation Teacher

First of all, we want to express on behalf of the academic community of the Universidad Surcolombiana our thanks to the Computer Modelling Group Ltd. Company for the training received during June 03 & 04, 2025 at the facilities of our university, Sala CPIP-USCO. Secondly, we are very grateful for his valuable collaboration and for the excellent work done by Mr. José Santos during the training course on the use of the STARS™ Module of the CMG platform; we especially want to highlight the great pedagogical and technical skills and the interest of Mr. José Santos. It was an excellent presentation that will undoubtedly result in the academic quality of our graduates and will be an important pillar for our research projects. Thanks again, to you, to Eng. Argenis Álvarez R. and Eng. José Santos for the time provided and the collaboration provided.

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Ranjit Dutta

General Manager (CoEES) and HoD, Oil India Limited

Great to see Geomechanics finally getting the attention it deserves in reservoir engineering! We recently leveraged CMG's geomechanics capabilities in a CCS project and gained valuable insights into stress evolution, fault reactivation risk, and optimized injection planning. It significantly reshaped our approach to storage integrity and long-term performance. Highly recommend exploring its potential in any subsurface storage workflow.
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Ranjit Dutta

General Manager (CoEES) and HoD, Oil India Limited

Great to see Geomechanics finally getting the attention it deserves in reservoir engineering! We recently leveraged CMG's geomechanics capabilities in a CCS project and gained valuable insights into stress evolution, fault reactivation risk, and optimized injection planning. It significantly reshaped our approach to storage integrity and long-term performance. Highly recommend exploring its potential in any subsurface storage workflow.