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Quantitatively Evaluating Formation Pressure Distribution After Hydraulic Fracturing in Tight Sand Oil

Author

Listed:
  • Yu Tang

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Chunting Liu

    (Downhole Services Company, PetroChina Chuanqing Drilling Engineering Company, Chengdu 610051, China)

  • Hong Xiang

    (Engineering Technology Research Institute of Xinjiang Oilfield Company, Karamay 834000, China)

  • Jin Zhang

    (Research Institute of Exploration and Development, Xinjiang Oilfield Company, Karamay 834000, China)

  • Heng Zheng

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Wenting Lu

    (Engineering Technology Research Institute of Xinjiang Oilfield Company, Karamay 834000, China)

  • Ruiquan Liao

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

Abstract

Hydraulic fracturing with a horizontal well is the core technology for the efficient development of unconventional oil and gas resources such as tight oil. Quantitative characterization of formation pressure changes in tight oil reservoirs is of great significance for improving the development efficiency of tight oil reservoirs. In response to the difficulty of quantitatively characterizing the range, size, and release process of formation pressure control in the fractured wells of tight oil reservoirs, this work proposes a numerical simulation method to quantitatively evaluate reservoir and fluid elastic properties. Based on a simulation, the elastic energy control zone was divided into a fracture network control zone and a matrix control zone, which achieved the accurate calculation of different zones and elastic energies. The effects of fracturing parameters, formation and fluid elastic parameters, and well spacing on the elastic energy control range were analyzed, and elastic energy calculation charts were drawn under different permeability, half fracture length, and fluid elastic parameter conditions. Based on analysis of the elastic energy release process, the elastic recovery rate of this type of reservoir was predicted. These research results are of great significance for optimizing the parameters of unconventional oil and gas hydraulic fracturing and their development system.

Suggested Citation

  • Yu Tang & Chunting Liu & Hong Xiang & Jin Zhang & Heng Zheng & Wenting Lu & Ruiquan Liao, 2025. "Quantitatively Evaluating Formation Pressure Distribution After Hydraulic Fracturing in Tight Sand Oil," Energies, MDPI, vol. 18(18), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:18:p:4894-:d:1749751
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    References listed on IDEAS

    as
    1. Wenxiang Chen & Zubo Zhang & Qingjie Liu & Xu Chen & Prince Opoku Appau & Fuyong Wang, 2018. "Experimental Investigation of Oil Recovery from Tight Sandstone Oil Reservoirs by Pressure Depletion," Energies, MDPI, vol. 11(10), pages 1-17, October.
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