南川页岩气地质工程一体化优化中的参数敏感性分析

王惠君; 卢双舫; 乔露; 张俊; 陈方文; 何希鹏; 高玉巧; 梅俊伟; 任建华; 王伟

doi:10.3799/dqkx.2022.383

Volume 48 Issue 1

Jan. 2023

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Article Navigation > Earth Science > 2023 > 48(1): 267-278

Wang Huijun, Lu Shuangfang, Qiao Lu, Zhang Jun, Chen Fangwen, He Xipeng, Gao Yuqiao, Mei Junwei, Ren Jianhua, Wang Wei, 2023. Parameter Sensitivity Analysis in Geology-Engineering Integration Optimization for Shale Gas in Nanchuan Block. Earth Science, 48(1): 267-278. doi: 10.3799/dqkx.2022.383

Citation:

Wang Huijun, Lu Shuangfang, Qiao Lu, Zhang Jun, Chen Fangwen, He Xipeng, Gao Yuqiao, Mei Junwei, Ren Jianhua, Wang Wei, 2023. Parameter Sensitivity Analysis in Geology-Engineering Integration Optimization for Shale Gas in Nanchuan Block. Earth Science, 48(1): 267-278. doi: 10.3799/dqkx.2022.383

Citation:

Wang Huijun, Lu Shuangfang, Qiao Lu, Zhang Jun, Chen Fangwen, He Xipeng, Gao Yuqiao, Mei Junwei, Ren Jianhua, Wang Wei, 2023. Parameter Sensitivity Analysis in Geology-Engineering Integration Optimization for Shale Gas in Nanchuan Block. Earth Science, 48(1): 267-278. doi: 10.3799/dqkx.2022.383

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Parameter Sensitivity Analysis in Geology-Engineering Integration Optimization for Shale Gas in Nanchuan Block

doi: 10.3799/dqkx.2022.383

Wang Huijun^{1
,
,},
Lu Shuangfang^{2, 1
,
,},
Qiao Lu¹,
Zhang Jun³,
Chen Fangwen¹,
He Xipeng⁴,
Gao Yuqiao⁴,
Mei Junwei⁴,
Ren Jianhua⁴,
Wang Wei⁴

1.
School of Geosciences, China University of Petroleum, Qingdao 266580, China
2.
Sanya Offshore Oil & Gas Research Institute, Northeast Petroleum University, Sanya 572025, China
3.
Ministry of Science and Technology, SINOPEC, Beijing 100728, China
4.
East China Oil and Gas Company, SINOPEC, Nanjing 210011, China

Received Date: 2022-03-03
Available Online: 2023-02-01
Publish Date: 2023-01-25

Abstract

Abstract

Geology-engineering integration policy is an important way to reduce cost and increase efficiency of shale gas. Integrated and quantitative approach is an important development direction of integrated optimization decision research. However, the current quantitative optimization is more often performed for single well, and the optimal fracture half-length/horizontal well length obtained from the optimization of a single well is often used as the basis for well pattern deployment. In this paper, it compares the sensitivity of single-well and block optimization results to major geological conditions and engineering parameters based on the objective functions of single-well and block benefits constructed using operational research techniques. The results show that although the benefits of both single-well and block show a trend of increasing and then decreasing with increasing fracture size (fracture half-length), the optimal fracture half-lengths are significantly different. Meanwhile, with the increase of porosity, gas saturation, pressure coefficient, natural gas price, fracturing cost and drilling cost, the optimal fracture half length of single well and block varies. It indicates that the optimal values obtained for blocks and single well are not consistent, and wells should be laid out with the results of the overall geology-engineering integration optimization of the blocks. This finding has realistic implications for the optimal deployment and efficient development of shale gas and other unconventional oil and gas well networks.
- shale gas,
- geology-engineering integration optimization,
- sensitivity analysis,
- multi-stage fractured horizontal well,
- petroleum engineering

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References(35)

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