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simulation with five wells in a hypothetical formation with two pay zones. In the base simulation, all the wells are landed in the upper pay zone. However, the algorithm is given the option to vary the landing depth of the second and fourth wells. The figures below show the ‘baseline’ simulation.

ResFrac’s Automated Economic Optimization Tool

ResFrac’s automated optimization tool allows you to quickly and easily identify the economically best well spacing and frac design. This blog post steps through a simple demo of our built-in economics engine that is similar to those used by commercial software in the industry. It accounts for details such as working interest, different types of taxes, time-varying operations cost, etc.

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Latest content

DOE Innovators Roundtable on Enhanced Geothermal Systems with Secretary Granholm

This week, the US Secretary of Energy, Jennifer Granholm, was in Houston to announce an ‘Earthshot’ initiative to accelerate domestic production of zero-emission, baseload geothermal energy  Secretary Granholm announced the initiative at a press conference, and then hosted a roundtable discussion with Reginald DesRoches, the president of Rice University, and a group of innovators in the geothermal space. ResFrac CEO Mark McClure was one of the participants in the roundtable. Sec. Granholm asked him how to increase engagement from the oil and gas industry in geothermal.

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2022 Geothermal Rising

Reflections from the 2022 Geothermal Rising Conference

This is an exciting time for EGS. Multistage hydraulic fracturing has tremendous potential to improve the productivity of geothermal wells in low permeability formations. Projects are happening right now to test this concept in full-scale EGS wells. If they prove successful, we could soon see a major increase in geothermal energy production.

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Automated history matching to fracture geometries as measured by Volume to First Response (VFR): A Tutorial

In this post, I will walk through a simple example of using SWPM to calibrate the fracture geometries of a hypothetical data set leveraging the ResFrac Automated History Matching functionality to expedite the workflow. In a follow-on post, I use the model to demonstrate some intuitions on fracture geometry using the Sensitivity Analysis functionality as well as some nuances of VFR calibration.

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Technical articles

Automated history matching to fracture geometries as measured by Volume to First Response (VFR): A Tutorial

In this post, I will walk through a simple example of using SWPM to calibrate the fracture geometries of a hypothetical data set leveraging the ResFrac Automated History Matching functionality to expedite the workflow. In a follow-on post, I use the model to demonstrate some intuitions on fracture geometry using the Sensitivity Analysis functionality as well as some nuances of VFR calibration.

Read more
simulation with five wells in a hypothetical formation with two pay zones. In the base simulation, all the wells are landed in the upper pay zone. However, the algorithm is given the option to vary the landing depth of the second and fourth wells. The figures below show the ‘baseline’ simulation.

ResFrac’s Automated Economic Optimization Tool

ResFrac’s automated optimization tool allows you to quickly and easily identify the economically best well spacing and frac design. This blog post steps through a simple demo of our built-in economics engine that is similar to those used by commercial software in the industry. It accounts for details such as working interest, different types of taxes, time-varying operations cost, etc.

Read more

ResFrac updates

DOE Innovators Roundtable on Enhanced Geothermal Systems with Secretary Granholm

This week, the US Secretary of Energy, Jennifer Granholm, was in Houston to announce an ‘Earthshot’ initiative to accelerate domestic production of zero-emission, baseload geothermal energy  Secretary Granholm announced the initiative at a press conference, and then hosted a roundtable discussion with Reginald DesRoches, the president of Rice University, and a group of innovators in the geothermal space. ResFrac CEO Mark McClure was one of the participants in the roundtable. Sec. Granholm asked him how to increase engagement from the oil and gas industry in geothermal.

Read more

Highlights on propagation from preexisting fractures in ResFrac

The purpose of this blog post is to cover recently developed ResFrac capability that allows investigation of the effect of natural fractures on hydraulic fracture propagation. While this option has always been available for the ‘discrete’ propagation algorithm, now it also has become available for the ‘continuous’ algorithm. There are some noticeable changes compared to the previous implementation and they are covered next.

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2022 ResFrac Annual Symposium

Last week we held our Fourth Annual ResFrac Symposium. The premise of the event is to bring together ResFrac users to share use cases, best practices, and general developments in the industry. This year was our biggest yet, with nearly 100 people joining either in-person or online throughout the day-long event, representing 26 different oil, gas, and geothermal operating companies, seven universities, and several service company collaborators.

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Industry perspectives

2022 Geothermal Rising

Reflections from the 2022 Geothermal Rising Conference

This is an exciting time for EGS. Multistage hydraulic fracturing has tremendous potential to improve the productivity of geothermal wells in low permeability formations. Projects are happening right now to test this concept in full-scale EGS wells. If they prove successful, we could soon see a major increase in geothermal energy production.

Read more

Commentary on Four New DFIT Papers: (a) Direct In-Situ Measurements of Fracture Opening/Closing from the EGS Collab Project; (b) Comparison of Stress Measurement Techniques from the Bedretto Project; (c) a Statistical Summary of 62 DFITs Interpretations Across Nine Shale Plays; and (d) A Different Perspective: An Article Advocating the Use of the Tangent Method

This post provides commentary on recent four papers on diagnostic fracture injection testing (DFIT). The first paper uses in-situ deformation measurements to directly observe fractures opening and closing during fracture injection-falloff tests (Guglielmi et al., 2022). The second compares various stress measurement techniques in a series of fracture/injection tests from the Bedretto project (Bröker and Ma, 2022). The third statistically reviews results from applying the interpretation procedure from McClure et al. (2019) to 62 DFITs across nine different shale plays (McClure et al., 2022). The fourth is an op-ed written in JPT (Journal of Petroleum Technology) by an advocate of the tangent method for estimating DFIT closure stress (Buijs, 2021; 2022). This article presupposes that the reader already has familiarity with these topics. If you would like more background, please refer to McClure et al. (2019).

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Notable Papers from SPE HFTC 2022

The SPE Hydraulic Fracturing Technology Conference (HFTC) was last week. There were tons of great, practically relevant, papers. People are really locked-in on the key value drivers. This blog post gives a sampling of a few of the papers that I found most interesting. I don’t discuss any of the ResFrac papers because they were in a previous blog post.

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