Jianfa Wu

Chemical Profiling and Multicomponent Quality Evaluation of Xueshan Jinluohan Pain-Relief Liniment by UPLC-Q-Exactive Orbitrap MS and HPLC Fingerprinting Integrated with Chemometrics

Jianfa Wu, Wenbin Liu, Ying Cui, Zhiqiang Gan et autres

Xueshan Jinluohan Pain-Relief Liniment (XJPL) is a Tibetan topical compound preparation composed of 11 medicinal materials. Its current quality standard relies mainly on thin-layer chromatographic identification, which is insufficient to comprehensively characterize its complex chemical composition, marker constituents from key medicinal materials, …

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Numerical simulation of in-fracture plugging behavior of temporary plugging agents in diverting fracturing of deep shale gas reservoirs

Jinzhou Zhao, Qianqiu Ren, Lan Ren, Ran Lin et autres

In-fracture diverting fracturing is an effective technique for improving the quality of fracture network construction in deep shale gas reservoirs. However, theoretical guidance for the injection of temporary plugging agents (TPAs) remains limited. To investigate the transport and plugging behavior of TPAs …

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Casing deformation prevention technology and application based on geology-engineering integration

Shuai Cui, Jianfa Wu, Haoyong Huang, Bo Zeng et autres

The deep shale gas resources in southern Sichuan province of China are abundant, accounting for over 80% of the total shale gas resources in the region. However, influenced by the superimposition of multiple tectonic movements, its development faces multiple challenges including complex …

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Study on the Evolution Law of Four-Dimensional In Situ Stress During Hydraulic Fracturing of Deep Shale Gas Reservoir

Shuai Cui, Jianfa Wu, Bo Zeng, Haoyong Huang et autres

The increasing burial depth of deep shale formations in the southern Sichuan leads to more complex in situ stresses and geological structures, which in turn raises the challenges of hydraulic fracturing. Although enlarging the treatment scale and injection rate can enhance reservoir …

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Optimized Shale Gas Fracturing Design Based on Three Sweet Spots Identification: A Case Study from the Southern Sichuan Basin

Jinzhou Zhao, Ziqing Yang, Lan Ren, Ran Lin et autres

Abstract The marine shale gas reservoirs in the southern Sichuan Basin exhibit strong lateral heterogeneity and complex natural fracture development. Multi-cluster fracturing technology for horizontal wells is an effective method for the efficient development of shale gas. It improves fracturing effectiveness and …

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Behavior Analysis of Fine Temporary Plugging Agents and Fibers in Bridging Regions: Migration and Clogging

Jinzhou Zhao, Yinjian Huang, Lan Ren, Ran Lin et autres

Abstract Temporary plugging and diverting fracturing enhances unconventional reservoir stimulation by creating a tight sealing layer through the bridging and filling of diverters in fractures. The tightness and pressure-bearing capacity of the sealing layer are governed by the clogging efficiency of fine …

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Perforation Plugging with Ball Sealers in Horizontal Wells: Numerical Analysis of Plugging Mechanisms

Jinzhou Zhao, Qianqiu Ren, Yinjian Huang, Lan Ren et autres

Abstract During staged fracturing of multiple perforation clusters in horizontal wells of unconventional reservoirs, variations in fluid influx among clusters limit reservoir stimulation efficiency. Regulating the activation of perforation clusters through fracture opening temporary plugging is a key technique to achieve uniform …

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Development and Field Implementation of a Real-Time Hydraulic Fracturing Simulation and Optimization Platform

Jianfa Wu, Baoqing Zeng, Xuewen Shi, Haoyong Huang et autres

Abstract Hydraulic fracturing remains the primary technology enabling the economic development of unconventional shale and tight reservoirs. However, operational challenges—including sand blockages, fracture hits, casing deformation, and the lack of integrated real-time diagnostics—continue to limit efficiency and reliability, particularly in deep and …

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Mechanisms of Fault Activation and Casing Deformation Control During Hydraulic Fracturing in Deep Shale Gas Reservoirs

Junjie Hu, Cong Lu, Jihong Sun, Jianchun Guo et autres

Abstract Deep shale gas reservoirs (e.g., the Wufeng–Longmaxi formations) in the southern Sichuan Basin hold vast potential but face severe casing deformation due to the complex geologic conditions, including multi-directional in situ stresses, high brittleness, micro-fracture networks, and high-temperature/high-pressure environments. This study …

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Maceral-specific evolution of molecular structure and porosity from the early oil to dry gas window in black shales

Yingzhu Wang, Jianfa Wu, Qing Luo, Jinyou Zhang et autres

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Deep Shale Matrix Permeability Evolution During Well Shut-In Under True Triaxial Stress

Jinzhou Zhao, Zhihao Yu, Lan Ren, Ran Lin et autres

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Composite temporary plugging mechanism in horizontal well perforations

Yinjian Huang, Jinzhou Zhao, Lan Ren, Ran Lin et autres

In multi-stage fracturing of horizontal wells, fracture-opening temporary plugging is crucial in ensuring the uniform propagation of hydraulic fractures. Large-displacement, high-intensity sanding fracturing often causes severe perforation erosion, which in turn affects the performance of plugging. A composite temporary plugging method that …

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