基于层次分析法的页岩气储层地质工程一体化甜点评价：以昭通页岩气示范区太阳页岩气田海坝地区X井区为例

王红岩; 刘钰洋; 张晓伟; 郭为; 于荣泽; 孙玉平; 梁萍萍; 康莉霞

doi:10.3799/dqkx.2022.020

Volume 48 Issue 1

Jan. 2023

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Article Navigation > Earth Science > 2023 > 48(1): 92-109

Wang Hongyan, Liu Yuyang, Zhang Xiaowei, Guo Wei, Yu Rongze, Sun Yuping, Liang Pingping, Kang Lixia, 2023. Geology-Engineering Intergration Shale Gas Sweet Spot Evaluation Based on Analytic Hierarchy Process: Application to Zhaotong Shale Gas Demonstration District, Taiyang Shale Gas Field, Haiba Area, X Well Region. Earth Science, 48(1): 92-109. doi: 10.3799/dqkx.2022.020

Citation:

Wang Hongyan, Liu Yuyang, Zhang Xiaowei, Guo Wei, Yu Rongze, Sun Yuping, Liang Pingping, Kang Lixia, 2023. Geology-Engineering Intergration Shale Gas Sweet Spot Evaluation Based on Analytic Hierarchy Process: Application to Zhaotong Shale Gas Demonstration District, Taiyang Shale Gas Field, Haiba Area, X Well Region. Earth Science, 48(1): 92-109. doi: 10.3799/dqkx.2022.020

Citation:

Wang Hongyan, Liu Yuyang, Zhang Xiaowei, Guo Wei, Yu Rongze, Sun Yuping, Liang Pingping, Kang Lixia, 2023. Geology-Engineering Intergration Shale Gas Sweet Spot Evaluation Based on Analytic Hierarchy Process: Application to Zhaotong Shale Gas Demonstration District, Taiyang Shale Gas Field, Haiba Area, X Well Region. Earth Science, 48(1): 92-109. doi: 10.3799/dqkx.2022.020

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Geology-Engineering Intergration Shale Gas Sweet Spot Evaluation Based on Analytic Hierarchy Process: Application to Zhaotong Shale Gas Demonstration District, Taiyang Shale Gas Field, Haiba Area, X Well Region

doi: 10.3799/dqkx.2022.020

Wang Hongyan^{1, 2
,
,},
Liu Yuyang^{1, 2
,
,
,},
Zhang Xiaowei^{1, 2},
Guo Wei^{1, 2},
Yu Rongze^{1, 2},
Sun Yuping^{1, 2},
Liang Pingping^{1, 2},
Kang Lixia^{1, 2}

1.
Research Institute of Petroleum Exploration and Development (RIPED), PetroChina, Beijing 100083, China
2.
China National Shale Gas Research & Development (Experiment) Center, Langfang 065007, China

Received Date: 2021-11-09
Available Online: 2023-02-01
Publish Date: 2023-01-25

Abstract

Abstract

Sweet spot is a relatively high production formation and region in shale gas reservoir. The reasonable prediction and evaluation of geological sweet spot, engineering sweet spot and comprehensive sweet spot is the key to economical and efficient development of shale gas field. To solve the problem of shale gas sweet spot evaluation based on multi-parameter, a new geology-engineering integration shale gas sweet spot evaluation method is introduced. Base on the high-resolution three-dimensional (3D) attributer models, analytic hierarchy process (AHP) is applied to combine the geological sweet spot evaluation indices and engineering sweet spot evaluation indices. Firstly, by integrating the previous researches, a shale gas sweet spot evaluation system is established for geological, engineering and comprehensive sweet spot evaluations. Secondly, the technical route of geology-engineering integration sweet spot evaluation method for shale gas reservoir based on AHP is designed. Lastly, data from X well region in Taiyang shale gas field of Zhaotong shale gas demonstration area are employed to verify the validity of proposed approach. Base on the high-resolution 3D models of the target area, the geological, engineering and comprehensive sweet spot has been evaluated by using the proposed approach. The results show that the proposed approach can realize the evaluation of geological, engineering and comprehensive sweet spot for the target area by integrating geological and engineering indices. The evaluation results show that sweet spot is mainly distributed in Ordovician Wufeng Formation (WF) and the first three layers of the first sub-formation of the first Silurian Longmaxi Formation (L1₁¹, L1₁² and L1₁³). While, the sweet spot in the fourth layer of the first sub-formation of the first Silurian Longmaxi Formation (L1₁⁴) is relatively rarely distributed. By combining the qualitative analysis and quantitative analysis, the proposed geology-engineering integration sweet spot evaluation approach for shale gas reservoir based on AHP provides a new route for the delineation of shale gas sweet spot. Meanwhile, the proposed route can improve the rationality and accuracy of shale gas sweet spot evaluation results to some extent.
- shale gas,
- geological sweet spot,
- engineering sweet spot,
- comprehensive sweet spot,
- analytic hierarchy process,
- geology-engineering integration

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References(62)

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