About

Man smiling in front of a mossy canyon with a tall waterfall on the right background, outdoors.

Jack Blears

Senior Reservoir and Completions Engineer

Jack Blears is a Senior Reservoir and Completions engineer at ResFrac, where he applies expertise in physics-based numerical reservoir simulation to help operators optimize well and reservoir performance.

Prior to joining ResFrac, Jack served as Commercial and Ecosystem Manager for Weatherford’s digital solutions team, leading go-to-market and partnership strategy. Before that, he spent seven years at Darcy Partners as Research Director, leading innovation advisory services for upstream energy clients with a focus on emerging technology providers and industry trends.

Jack earned both his PhD and Master’s in Petroleum Engineering from Louisiana State University, where his doctoral research in physics-based numerical reservoir simulation demonstrated how coupled models can more accurately simulate pore-scale phenomena—such as particle filtration—at the reservoir scale. He also holds a Bachelor’s degree with honors in Physics from Washington University in St. Louis.

Based in Houston, Jack enjoys visiting national parks (35 in the U.S. and counting) and playing pool.

Jack's posts

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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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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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