About

Munhong (Robin) Hui

Senior Research Scientist

Munhong (Robin) Hui is a senior reservoir modeling and simulation expert with more than 20 years of experience developing and deploying advanced subsurface technologies for complex carbonate and unconventional reservoirs.

Robin joined ResFrac after a long tenure at Chevron, where he served as a Senior Research Scientist and Product Owner, leading the development of upscaling, reservoir simulation, history-matching, and optimization workflows used to support critical asset decisions.

Robin’s work focuses on physics-based and data-driven modeling of fluid flow in fractured reservoirs, including coupled flow–geomechanics. He has made significant contributions to discrete fracture modeling and data–physics hybrid approaches, authoring numerous peer-reviewed publications in these areas. His work bridges fundamental research and practical deployment, with an emphasis on scalable, production-ready solutions.

Robin is an active member of the Society of Petroleum Engineers (SPE), where he serves on a local Section Board and multiple Conference Technical Program Committees. He has received an SPE Regional Award in Reservoir Description & Dynamics and has served on the U.S. Department of Energy’s Methane Hydrate Advisory Committee. He also holds several patents related to reservoir modeling and simulation technologies.

He holds a Ph.D. in Petroleum Engineering from Stanford University and a B.S. in Chemical Engineering from the National University of Singapore.

Outside of work, Robin enjoys playing tennis, hiking, biking, cooking, and gardening.

Please click here for a list of Robin’s publications.

Munhong's posts

Abstract illustration with multiple outlined maps over a green-to-yellow gradient and light beams.

The influence of well configuration on water loss in Enhanced Geothermal Systems

Recently, ‘water loss’ has been a hot topic of discussion for EGS. Fervo reported that they have been producing only 70% of the fluid volumes that they have been injecting at their Project Red. The FORGE project reported a roughly 10% water loss rate. Because projects will have finite water rights, these results have led to concern that growth of EGS will be limited by excessive water consumption. This is a valid concern, and water availability is a legitimate factor in site-selection and project engineering. However, I believe that the problem has been overstated.

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2026 ResFrac Annual Symposium Recap

On June 25, 2026, we got the ResFrac community together both in-person at the ExxonMobil campus in Spring, Texas, and virtually around the globe for our Annual Symposium. With our community growing as fast as it is, the energy in the room was absolutely buzzing. We had a jam-packed day of operator case studies, deep-dive technical sessions, and some incredible geomechanical insights from industry legends.

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ResApps FracTest interface showing a Stress interpretation section with an Auto-interpret button and contact options, next to a Stress Diagnostic Chart.

FracTest – An Online Tool for DFIT Interpretation

This week, we are releasing FracTest, a web-based application for interpretation of diagnostic fracture injection tests (DFITs). FracTest is available at resapps.resfrac.com, alongside our other two ResApps, StageOpt and IntTest. DFITs are small-volume fracture injection tests used to estimate stress, pore pressure, and permeability. These quantities form the foundation of the fracture and reservoir engineering work that we do in ResFrac, and so we view DFIT interpretation as one of the most important parts of our workflow.

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