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Get the physics right. Genuinely integrated hydraulic fracture and reservoir simulation.
- Recorded ARMA HFC 2023 Series Presentation– Optimization of Perforation Phasing for Improving Uniformity of Proppant Distribution Between Clusters
- ResFrac at the Breckenridge Imperial Challenge
- Technical barriers for deep closed-loop geothermal
- Modeling simulfracs and subsurface implications
- A New Approach for Interference Test Analysis: Quantifying the Degree of Production Impact
- Optimization of perforation orientation for achieving uniform proppant distribution between clusters
- Interesting papers from the 2023 SPE Hydraulic Fracturing Technology Conference
- Proppant distribution between perforation clusters
- Simulating ‘Fractal Fracture Swarms’ in a General-Purpose Reservoir Simulator
- How to Diagnose False Radial Flow in a Diagnostic Fracture Injection Test (DFIT)
- DOE Innovators Roundtable on Enhanced Geothermal Systems with Secretary Granholm
- Reflections from the 2022 Geothermal Rising Conference
- Automated history matching to fracture geometries as measured by Volume to First Response (VFR): A Tutorial
- Highlights on propagation from preexisting fractures in ResFrac
- ResFrac’s Automated Economic Optimization Tool
- 2022 ResFrac Annual Symposium
- A shale booster shot: ‘Re-fracs’ rise as cheap way to lift U.S. oil output
- Automated History Matching and Economic Optimization of an Eagle Ford Refrac
- ResFrac Retreat in Colorado
- 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
- Notable Papers from SPE HFTC 2022
- Four ResFrac papers at HFTC 2022!
- Understanding fracture morphology
- Why Multistage Stimulation Could Transform the Geothermal Industry
- ResFrac Endurance Team takes on The Triple Bypass
- ResFrac user meeting
- ResFrac Endurance Team: Race Reports
- ResFrac Updates: New Website, New Logo, and New Crack Propagation Algorithm (MuLTipEl)
- TWA Energy Influencers 2021
- ResFrac Endurance Team
- Epistemic Challenges for Subsurface Engineering, Part II: Creating Value with a Hypothesis-Driven Workflow
- Epistemic Challenges for Subsurface Engineering, Part I: The Persistence of False Beliefs
- Geologists Recommend Eating At Least One Small Rock Per Day
- Why Multistage Stimulation is the Most Exciting Idea in Geothermal
- Notable Papers from HFTC 2021
- Frac Tech: Simulation Sheds Light On Complex Relationships Between Parent-Child Wells
- Recorded ARMA HFC ‘Warm-Up’ series webinar – A Continuous Fracture Front Tracking Algorithm with Multi-Layer Tip Elements (MuLTipEl)
- What’s New: HFTC, the Parent/Child Industry Study, HFTS2, Supercritical Geothermal, DFIT, and Automated History Matching
- Introducing ResFrac’s Sensitivity Analysis Tools
- The ResFrac Parent/Child Industry Study has Kicked Off!
- Why Deep Closed-Loop Geothermal Is Guaranteed To Fail
- Integrated Reservoir Modeling Supports a Culture of Continuous Improvement
- The Value of Subsurface Modeling
- Theoretical and Empirical Problems with the Holistic Permeability Correlation for DFIT Interpretation
- Calibration of Wellbore Pressure During and After Fracturing
- Best Practices in Interpretation of DFIT Tests for Shmin, Permeability, and Pore Pressure
- Obserintelligence Podcast interviews ResFrac CEO Mark McClure
- Modeling Frac Hit Damage in ResFrac
- Another Boulder on the Pile of Evidence Against the Tangent Method of Picking Fracture Closure
- 2020 ResFrac Symposium
- Hart Energy Profiles ResFrac as Innovative, Disruptive Technology
- Collaborating with whitson to Improve ResFrac’s Fluid Modeling
- With Lower Prices, Operators Need to Reoptimize Well Spacing and Frac Design
- The New ResFrac User Interface
- ResFrac Closes a Round of Equity Financing from Altira Group
- ResFrac Corporation Closes Equity Financing with Altira Group and Launches New User Interface
- Recorded ARMA ‘Robe Talk’ – The Case for Planar Fracture Modeling
- ResFrac Simulation Training
- ResFrac Office Hours
- ResFrac on the Oil and Gas Startups Podcast
- HFTC 2020
- Questions Over Permeability Prompt Producer-Led Group To Rebuild Key Fracture Diagnostic
- Joe Frantz Joins ResFrac Team
- ATCE Startup Competition Names People’s Choice and Rising Star Winners
- University Group Lists “Most Promising” Oil & Gas Startups of the Year
- The Case for Planar Fracture Models
- New Modeling Code Sees Deep Inside Fractures, May Change Thinking on Well Spacing
- Using RTA to Aid ResFrac History Matching
- DFIT Study Update
- Do fractures propagate symmetrically?
- Applying ResFrac to Optimize Cluster Spacing
- The effect of depletion on DFIT pressure and stress measurements
- A new core-across study may lead to a paradigm shift in our understanding of hydraulic fracturing in shale
- Craig et al. (2017) present data and claim it refutes the fracture compliance method – actually, it shows the exact opposite
- Fluid conduction in closed fractures and implications for DFIT interpretation
- Postclosure DFIT interpretation: Demystifying the Linear Flow Time Function
- Curving G-function plots and picking closure
- Demystifying the G-function
- How to plot a DFIT
- DFIT, LOT, XLOT, Minifrac, Microfrac, Fracture Calibration Test: Navigating the Terminology
- Diagnostic Fracture Injection Tests: The Basics
The industry’s only fully coupled hydraulic fracturing and reservoir simulator
Fully integrated simulator
Multiphase flow, 3D fracture mechanics, proppant transport, poroelastic stresses, wellbore dynamics, and thermal effects. Mesh cracks as cracks.
Solve cutting-edge problems
Synthesize complex field-scale datasets to make practical decisions. Mitigate parent/child impacts, triple recovery factor with EOR, and design geothermal systems.
Proven impact on capital efficiency
Impacted 35+ operators by optimizing well spacing, cluster spacing, stage length, perforation design, fluid and proppant loading, and more.
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Industry-leading user-interface and cloud-based tools. Detailed documentation and training. Close collaboration with ResFrac’s expert team.
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Test designs in a virtual environment before implementing them in the field
- Integrate with your existing workflows Physics-based simulation is synergistic with data analytics and field data collection. Synthesize field data and accelerate the process of continuous improvement.
- Two modes of engagement We offer direct software licensing, consulting services, or a mix of both. Solutions fit for any size company - from small independents to supermajors and NOCs.
- Collaboration and experience We have worked with 35+ companies in every major shale plan in North America and co-authored 15 papers and case studies.
Physics-based simulation is synergistic with data analytics and field data collection. Synthesize field data and accelerate the process of continuous improvement.
Engineers and executives both love ResFrac
Engineers and geoscientists
ResFrac’s modeling solution couples hydraulic fracturing and reservoir simulation, enabling you to simulate the full well life cycle in a single continuous simulation. Detailed, transparent technical documentation. Modern UI with built-in help content and wizards. Extensive training and user-support.
Senior leaders
Under pressure to maximize free cash flow? We help your team unlock value by iterating to the best design faster. Under pressure to increase reserves? We help mitigate parent/child problems, design enhanced oil recovery to multiply reserves, and develop cutting edge technologies.
Recent content from the ResFrac blog

Recorded ARMA HFC 2023 Series Presentation– Optimization of Perforation Phasing for Improving Uniformity of Proppant Distribution Between Clusters
This ARMA Hydraulic Fracturing Community (HFC) presentation summarizes the work on proppant transport in horizontal perforated wellbores. Specifically, it discusses the model for proppant distribution between perforations depending on their orientation and location within the stage, optimal configurations are proposed, and performance is evaluated.

ResFrac at the Breckenridge Imperial Challenge
It’s that time of year again for our ResFrac team to embark upon the Imperial Challenge in Breckenridge, CO! As with last year, Egor, Dirk (ResFrac investor), and Garrett tackled the challenge this year. The Imperial Challenge is an annual triathlon where racers bike or run from the town of Breckenridge 6 miles and 850 feet up to the base of the Breckenridge ski resort, then skin (ski uphill) 3000 ft to the peak of the resort at 12,998 ft, then… ski off the other side.

Technical barriers for deep closed-loop geothermal
This is the most exciting time in my lifetime for geothermal. There are many, many innovative things happening. To name a few – promising new approaches to Enhanced Geothermal Systems, geothermal projects in sedimentary and lower enthalpy formations, new approaches for geothermal exploration, lithium extraction from produced brines, geothermal energy storage, integrations with CO2 storage and capture, and new technologies for producing energy from hot water that is coproduced with oil and gas. However, this post is about a concept about which I remain skeptical – deep closed-loop heat exchangers (McClure, 2021). These designs are sometimes called ‘Advanced Geothermal Systems,’ AGS (Malek et al., 2022).