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Influencing Factors of Drainage and Production and Quantitative Evaluation in Shale Gas Reservoirs

Author

Listed:
  • Hao Xu

    (College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China)

  • Tuan Gu

    (Research Institute of Petroleum Exploration and Development, Liaohe Oilfield Company of Petro, Panjin 124000, China)

  • Shuangliang Wu

    (Drilling & Production Technology Research Institue of Petrochina Jidong Oilfield, Tangshan 063299, China)

  • Shucan Xu

    (College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China)

  • Xiang Yu

    (Research Institute of Petroleum Exploration and Development, Liaohe Oilfield Company of Petro, Panjin 124000, China)

  • Xiaochao Guo

    (Research Institute of Petroleum Exploration and Development, Liaohe Oilfield Company of Petro, Panjin 124000, China)

  • Tao Fan

    (Research Institute of Petroleum Exploration and Development, Liaohe Oilfield Company of Petro, Panjin 124000, China)

  • Desheng Zhou

    (College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China)

Abstract

As a transitional energy source, natural gas plays a crucial role in the energy transition. In the efficient development of shale gas, the drainage and production process, as an important link between hydraulic fracturing and production, determines the recovery rate of individual wells. To clarify the main controlling factors of shale gas drainage and production, provide strategies for classification, and improve the recovery rates of individual wells, a numerical simulation method was proposed to analyze the factors affecting drainage and production, and the VIKOR method was used for quantitative evaluation of the drainage and production effects. The research results showed that: (1) The study identified nine main controlling factors affecting drainage and production performance, including gas saturation, permeability, stress difference, burial depth, formation pressure, cumulative fracture volume, final fracture loss rate, average final diversion ability, and wellbore liquid loading. (2) A workflow for quantitatively evaluating the drainage and production effectiveness of shallow shale gas wells and selecting wells with potential for optimized drainage and production was proposed. The correlation between the evaluation results and EUR fitting had an R 2 value of 0.71, indicating a good level of credibility. (3) The evaluation results for the target gas field indicated that out of the 16 representative wells, 12 wells have optimization potential, with 5 wells showing significant optimization potential. Studying the rules of shale gas drainage and production and evaluating the drainage and production effects can help us to propose refined drainage and production strategies, which are essential for improving the estimated ultimate recovery (EUR).

Suggested Citation

  • Hao Xu & Tuan Gu & Shuangliang Wu & Shucan Xu & Xiang Yu & Xiaochao Guo & Tao Fan & Desheng Zhou, 2023. "Influencing Factors of Drainage and Production and Quantitative Evaluation in Shale Gas Reservoirs," Sustainability, MDPI, vol. 15(17), pages 1-23, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:17:p:12944-:d:1226830
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    References listed on IDEAS

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    1. Guanglin Pi & Xiucheng Dong & Cong Dong & Jie Guo & Zhengwei Ma, 2015. "The Status, Obstacles and Policy Recommendations of Shale Gas Development in China," Sustainability, MDPI, vol. 7(3), pages 1-20, February.
    2. Temitope Love Baiyegunhi & Christopher Baiyegunhi & Benedict Kinshasa Pharoe, 2022. "Global Research Trends on Shale Gas from 2010–2020 Using a Bibliometric Approach," Sustainability, MDPI, vol. 14(6), pages 1-22, March.
    3. Alessandro Toscano & Filiberto Bilotti & Francesco Asdrubali & Claudia Guattari & Luca Evangelisti & Carmine Basilicata, 2016. "Recent Trends in the World Gas Market: Economical, Geopolitical and Environmental Aspects," Sustainability, MDPI, vol. 8(2), pages 1-24, February.
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