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Sep 2026
Analysis of Hydraulic Fracture Propagation Behavior Using a Thermo-Hydro-Mechanical Coupled Model
Hydraulic fracturing is a key reservoir stimulation technology for enhancing hydrocarbon recovery from unconventional reservoirs. However, fracture initiation and propagation are governed by complex thermo-hydro-mechanical (THM) coupling processes, which strongly influence fracture geometry, propagation dynamics, and o...
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Open access
Sep 2026
Large Scale Physical Modeling of Shale Fracture Propagation Under Different Controllable Shock Wave and Perforation Operation Schemes
To address the relatively high near-wellbore fracture-initiation resistance and the tendency of hydraulic fractures to propagate along a dominant path under conventional perforation-based hydraulic fracturing, three large-scale hydraulic-fracturing experiments were conducted using a 10,000-ton ultra-large true-triaxial...
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Open access
Sep 2026
Study on Hydraulic Fracture Propagation in Rock with a Coupled Hydro-Mechanical Phase-Field Model
Hydraulic fracture propagation directly affects stimulation efficiency in low-permeability unconventional reservoirs and is influenced by in situ stress, fluid injection, and bedding structure. In this study, a coupled hydro-mechanical phase-field model was developed by combining solid mechanics, porous media flow, and...
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Open access
Sep 2026
Study on the Hydraulic Fracture Propagation Mechanism in Deep Coalbed Methane Reservoirs of the Yan’an Gas Field
To address the unclear fracture propagation behavior and the insufficient understanding of the influence mechanisms of fracturing parameters during the hydraulic fracturing of deep coalbed methane reservoirs in the Yan’an Gas Field, Well JY1 in the No. 8 coal seam of the Benxi Formation in Block N was selected as the s...
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· Processes · 0 citations
Open access
Oct 2026
Numerical Simulation of Hydraulic Fracturing in Coal Reservoirs Based on a Damage–Seepage Coupled Model and Optimization of Perforation Parameters
Coal reservoirs exhibit strong heterogeneity and complex in situ stress conditions, and the initiation and propagation of hydraulic fractures are jointly controlled by reservoir geology and perforation design. A damage–seepage coupled numerical model was established on the COMSOL Multiphysics platform (Version 6.2) by...
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Dec 2026
Coupled XFEM–Fluid Pipe Element Modeling of Nonuniform Fracture Propagation in Multicluster Fracturing: A Case Study of the Shaximiao Formation, Zitong Area in China
This study investigates the challenge of imbalanced fracture propagation during multicluster hydraulic fracturing in tight sandstone reservoirs of the Zitong Shaximiao Formation. A coupled extended finite-element method (XFEM)–fluid pipe element model is developed to systematically analyze the influence of operatio...
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