Development practice and challenges of deep shale gas in southern Sichuan Basin

ZHAN Guowei; YANG Jian; ZHAO Yong; ZHANG Nanxi; WANG Baobao; LI Shuguang

doi:10.11781/sysydz2023061067

Volume 45 Issue 6

Nov. 2023

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Article Navigation > PETROLEUM GEOLOGY & EXPERIMENT > 2023 > 45(6): 1067-1077

ZHAN Guowei, YANG Jian, ZHAO Yong, ZHANG Nanxi, WANG Baobao, LI Shuguang. Development practice and challenges of deep shale gas in southern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(6): 1067-1077. doi: 10.11781/sysydz2023061067

Citation:

ZHAN Guowei, YANG Jian, ZHAO Yong, ZHANG Nanxi, WANG Baobao, LI Shuguang. Development practice and challenges of deep shale gas in southern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2023, 45(6): 1067-1077. doi: 10.11781/sysydz2023061067

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Development practice and challenges of deep shale gas in southern Sichuan Basin

doi: 10.11781/sysydz2023061067

Research Institute of Exploration and Development, SINOPEC Southwest Oil & Gas Branch Company, Chengdu, Sichuan 610041, China

Received Date: 2023-08-22
Rev Recd Date: 2023-10-20
Publish Date: 2023-11-28

Abstract

Abstract

There is great potential for developing deep shale gas resources, but the engineering geological conditions are relatively poorer, making it difficult for benefit development. In order to support the benefit development of deep shale gas, taking the development practices of Weirong and Yongchuan gas fields in the southern region of Sichuan Basin as an example, focusing on the difficulties of complex deep shale gas structures, developed fractures, thin high-quality reservoirs, rapid production decline, and low EUR, with the goal of "good well placement, good well drilling, and good well management", a key development technology system is formed by use of the integrated method of geophysics, geological modeling, fracturing simulation, and numerical simulation based on the research on precise gas reservoir description and seepage experiments, which is characterized by geological sweet spot evaluation and prediction technology, well network optimization design technology in complex tectonic areas, "four in one" drilling tracking guarantee technology, and full life cycle production control technology. At the same time, based on the problems exposed during development process, the difficulties and challenges in the coupling mechanism of "structure-fault-stress field", characterization of small-scale and microscale fractures, optimization of development technology strategies were summarized, and the problems that need to be continuously studied were proposed. The conclusion is that: ① The geological parameters such as porosity and gas content of deep shale are basically equivalent to those of medium-deep strata, but the engineering parameters are more complex, characterized by high in-situ stress, high horizontal stress difference, and high fracture pressure, making it difficult to transform; ② Key supporting technologies in dessert evaluation and prediction, modeling-numerical simulation integration technology, and fine production management has been formed in deep shale gas, with good development results; ③ At present, deep shale gas is mainly faced with challenges such as casing deformation, pressure channeling, and EUR non-compliance. It is necessary to further advance technical research in geological fine evaluation, fluid migration patterns, and modeling-numerical simulation integration.
- development practice of shale gas,
- development technology progress,
- deep shale gas,
- Weirong gas field,
- Yongchuan gas field,
- southern Sichuan

All authors disclose no relevant conflict of interests.
The research ideas were designed by ZHAN Guowei. The manuscript was drafted and revised by YANG Jian, ZHAO Yong and ZHANG Nanxi. The maps compilation was completed by WANG Baobao and LI Shuguang. All the authors have read the last version of paper and consented for submission.

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References

[1]	邹才能, 赵群, 丛连铸, 等. 中国页岩气开发进展、潜力及前景[J]. 天然气工业, 2021, 41(1): 1-14. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101002.htm ZOU Caineng, ZHAO Qun, CONG Lianzhu, et al. Development progress, potential and prospect of shale gas in China[J]. Natural Gas Industry, 41(1): 1-14. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101002.htm
[2]	赵群, 杨慎, 王红岩, 等. 中国页岩气开发现状及前景预判[J]. 环境影响评价, 2019, 41(1): 6-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SXHS201901002.htm ZHAO Qun, YANG Shen, WANG Hongyan, et al. China's shale gas development and its prospects[J]. Environmental Impact Assessment, 2019, 41(1): 6-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SXHS201901002.htm
[3]	何骁, 李武广, 党录瑞, 等. 深层页岩气开发关键技术难点与攻关方向[J]. 天然气工业, 2021, 41(1): 118-124. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101017.htm HE Xiao, LI Wuguang, DANG Lurui, et al. Key technological challenges and research directions of deep shale gas development[J]. Natural Gas Industry, 2021, 41(1): 118-124. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101017.htm
[4]	郭彤楼. 深层页岩气勘探开发进展与攻关方向[J]. 油气藏评价与开发, 2021, 11(1): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202101001.htm GUO Tonglou. Progress and research direction of deep shale gas exploration and development[J]. Reservoir Evaluation and Development, 2021, 11(1): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202101001.htm
[5]	马新华. 天然气与能源革命: 以川渝地区为例[J]. 天然气工业, 2017, 37(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201701002.htm MA Xinhua. Natural gas and energy revolution: a case study of Sichuan-Chongqing gas province[J]. Natural Gas Industry, 2017, 37(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201701002.htm
[6]	董大忠, 邹才能, 戴金星, 等. 中国页岩气发展战略对策建议[J]. 天然气地球科学, 2016, 27(3): 397-406. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201603002.htm DONG Dazhong, ZOU Caineng, DAI Jinxing, et al. Suggestions on the development strategy of shale gas in China[J]. Natural Gas Geoscience, 2016, 27(3): 397-406. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201603002.htm
[7]	徐凤生, 王富平, 张锦涛, 等. 我国深层页岩气规模效益开发策略[J]. 天然气工业, 2021, 41(1): 205-213. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101029.htm XU Fengsheng, WANG Fuping, ZHANG Jintao, et al. Strategies for scale benefit development of deep shale gas in China[J]. Natural Gas Industry, 2021, 41(1): 205-213. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101029.htm
[8]	张金川, 陶佳, 李振, 等. 中国深层页岩气资源前景和勘探潜力[J]. 天然气工业, 2021, 41(1): 15-28. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101003.htm ZHANG Jinchuan, TAO Jia, LI Zhen, et al. Prospect of deep shale gas resources in China[J]. Natural Gas Industry, 2021, 41(1): 15-28. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101003.htm
[9]	谭聪. 涪陵焦石坝区块页岩气井弹性产率变化规律研究[J]. 新疆石油天然气, 2017, 13(3): 65-70. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSY201703016.htm TAN Cong. A study on changing laws of unit pressure drop for gas production of shale gas wells in the Fuling Jiaoshiba block[J]. Xinjiang Oil & Gas, 2017, 13(3): 65-70. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSY201703016.htm
[10]	沈金才, 刘尧文. 涪陵焦石坝区块页岩气井产量递减典型曲线应用研究[J]. 石油钻探技术, 2016, 44(4): 88-95. https://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201604018.htm SHEN Jincai, LIU Yaowen. Application study on typical production decline curves of shale gas wells in the Fuling Jiaoshiba block[J]. Petroleum Drilling Techniques, 2016, 44(4): 88-95. https://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201604018.htm
[11]	孙龙德, 赵文智, 刘合, 等. 页岩油"甜点"概念及其应用讨论[J]. 石油学报, 2023, 44(1): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202301001.htm SUN Longde, ZHAO Wenzhi, LIU He, et al. Concept and application of "sweet spot" in shale oil[J]. Acta Petrolei Sinica, 2023, 44(1): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202301001.htm
[12]	姚东华, 周立宏, 王文革, 等. 页岩油综合甜点测井评价: 以沧东凹陷孔店组二段为例[J]. 石油学报, 2022, 43(7): 912-924. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202207003.htm YAO Donghua, ZHOU Lihong, WANG Wenge, et al. Logging evaluation of composite sweet spots for shale oil: a case study of member 2 of Kongdian Formation in Cangdong Sag[J]. Acta Petrolei Sinica, 2022, 43(7): 912-924. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202207003.htm
[13]	刘钰洋, 刘诗琦, 潘懋, 等. 基于三维角点网格模型的现今地应力有限元模拟[J]. 北京大学学报(自然科学版), 2019, 55(4): 643-653. https://www.cnki.com.cn/Article/CJFDTOTAL-BJDZ201904007.htm LIU Yuyang, LIU Shiqi, PAN Mao, et al. Research of crustal stress simulation using finite element analysis based on corner point grid[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2019, 55(4): 643-653. https://www.cnki.com.cn/Article/CJFDTOTAL-BJDZ201904007.htm
[14]	李志鹏, 刘显太, 杨勇, 等. 渤南油田低渗透储集层岩性对地应力场的影响[J]. 石油勘探与开发, 2019, 46(4): 693-702. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201904008.htm LI Zhipeng, LIU Xiantai, YANG Yong, et al. Influences of lithology on in-situ stress field in low permeability reservoirs in Bonan Oilfield, Bohai Bay Basin, China[J]. Petroleum Exploration and Development, 2019, 46(4): 693-702. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201904008.htm
[15]	王妍妍, 王卫红, 胡小虎, 等. 基于压裂效果评价的页岩气井井距优化研究[J]. 西南石油大学学报(自然科学版), 2018, 40(5): 131-139. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY201805013.htm WANG Yanyan, WANG Weihong, HU Xiaohu, et al. Study on the optimization of shale gas well spacing based on assessment of the fracturing performance[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2018, 40(5): 131-139. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY201805013.htm
[16]	位云生, 王军磊, 齐亚东, 等. 页岩气井网井距优化[J]. 天然气工业, 2018, 38(4): 129-137. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201804022.htm WEI Yunsheng, WANG Junlei, QI Yadong, et al. Optimization of shale gas well pattern and spacing[J]. Natural Gas Industry, 2018, 38(4): 129-137. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201804022.htm
[17]	刘清友, 朱海燕, 陈鹏举. 地质工程一体化钻井技术研究进展及攻关方向: 以四川盆地深层页岩气储层为例[J]. 天然气工业, 2021, 41(1): 178-188. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101026.htm LIU Qingyou, ZHU Haiyan, CHEN Pengju. Research progress and direction of geology-engineering integrated drilling technology: a case study on the deep shale gas reservoirs in the Sichuan Basin[J]. Natural Gas Industry, 2021, 41(1): 178-188. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202101026.htm
[18]	曹学军, 王明贵, 康杰, 等. 四川盆地威荣区块深层页岩气水平井压裂改造工艺[J]. 天然气工业, 2019, 39(7): 81-87. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201907015.htm CAO Xuejun, WANG Minggui, KANG Jie, et al. Fracturing technologies of deep shale gas horizontal wells in the Weirong block, southern Sichuan Basin[J]. Natural Gas Industry, 2019, 39(7): 81-87. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201907015.htm
[19]	伍贤柱. 四川盆地威远页岩气藏高效开发关键技术[J]. 石油钻探技术, 2019, 47(4): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201904001.htm WU Xianzhu. Key technologies in the efficient development of the Weiyuan shale gas reservoir, Sichuan Basin[J]. Petroleum Drilling Techniques, 2019, 47(4): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-SYZT201904001.htm
[20]	郭艳东, 王卫红, 刘华, 等. 页岩气多段压裂水平井产能影响因素研究[J]. 科技通报, 2018, 34(4): 72-78. https://www.cnki.com.cn/Article/CJFDTOTAL-KJTB201804015.htm GUO Yandong, WANG Weihong, LIU Hua, et al. Research on the production influencing factors of shale gas multi-stage fractured horizontal well[J]. Bulletin of Science and Technology, 2018, 34(4): 72-78. https://www.cnki.com.cn/Article/CJFDTOTAL-KJTB201804015.htm
[21]	朱维耀, 马东旭. 页岩储层有效应力特征及其对产能的影响[J]. 天然气地球科学, 2018, 29(6): 845-852. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201806011.htm ZHU Weiyao, MA Dongxu. Effective stress characteristics in shale and its effect on productivity[J]. Natural Gas Geoscience, 2018, 29(6): 845-852. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201806011.htm
[22]	王辉, 周朝, 周忠亚, 等. 页岩气井排水采气工艺综合优选方法[J]. 钻采工艺, 2022, 45(2): 154-159. https://www.cnki.com.cn/Article/CJFDTOTAL-ZCGY202202028.htm WANG Hui, ZHOU Chao, ZHOU Zhongya, et al. Comprehensive optimal selection method of drainage gas recovery technology for shale gas horizontal wells[J]. Drilling & Production Technology, 2022, 45(2): 154-159. https://www.cnki.com.cn/Article/CJFDTOTAL-ZCGY202202028.htm
[23]	蒋泽银, 李伟, 罗鑫, 等. 页岩气平台井泡沫排水采气技术[J]. 天然气工业, 2020, 40(4): 85-90. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202004016.htm JIANG Zeyin, LI Wei, LUO Xin, et al. Foam drainage gas recovery technology for shale-gas platform wells[J]. Natural Gas Industry, 2020, 40(4): 85-90. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202004016.htm
[24]	蒋一欣, 刘成, 高浩宏, 等. 昭通国家级页岩气示范区泡沫排水采气工艺技术及其应用[J]. 天然气工业, 2021, 41(S1): 164-170. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG2021S1025.htm JIANG Yixin, LIU Cheng, GAO Haohong, et al. Foam drainage gas recovery technology and its application in the shale gas wells of Zhaotong National Shale Gas Demonstration Area[J]. Natural Gas Industry, 2021, 41(S1): 164-170. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG2021S1025.htm
[25]	方志刚, 王振松, 马斌, 等. 页岩气全生命周期气举排水采气技术研究与应用[J]. 石油科技论坛, 2022, 41(2): 45-52. https://www.cnki.com.cn/Article/CJFDTOTAL-SYKT202202006.htm FANG Zhigang, WANG Zhensong, MA Bin, et al. Research and application of life-cycle gas-lift drainage and production techno-logy for shale gas[J]. Petroleum Science and Technology Forum, 2022, 41(2): 45-52. https://www.cnki.com.cn/Article/CJFDTOTAL-SYKT202202006.htm
[26]	梁兴, 王高成, 张介辉, 等. 昭通国家级示范区页岩气一体化高效开发模式及实践启示[J]. 中国石油勘探, 2017, 22(1): 29-37. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201701005.htm LIANG Xing, WANG Gaocheng, ZHANG Jiehui, et al. High-efficiency integrated shale gas development model of Zhaotong National Demonstration Zone and its practical enlightenment[J]. China Petroleum Exploration, 2017, 22(1): 29-37. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201701005.htm
[27]	吴奇, 梁兴, 鲜成钢, 等. 地质一工程一体化高效开发中国南方海相页岩气[J]. 中国石油勘探, 2015, 20(4): 1-23. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201504001.htm WU Qi, LIANG Xing, XIAN Chenggang, et al. Geoscience-to-production integration ensures effective and efficient South China marine shale gas development[J]. China petroleum exploration, 2015, 20(4): 1-23. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201504001.htm
[28]	刘乃震, 王国勇, 熊小林. 地质工程一体化技术在威远页岩气高效开发中的实践与展望[J]. 中国石油勘探, 2018, 23(2): 59-68. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201802008.htm LIU Naizhen, WANG Guoyong, XIONG Xiaolin. Practice and prospect of geology-engineering integration technology in the efficient development of shale gas in Weiyuan block[J]. China Petroleum Exploration, 2018, 23(2): 59-68. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201802008.htm
[29]	谢军, 张浩淼, 佘朝毅, 等. 地质工程一体化在长宁国家级页岩气示范区中的实践[J]. 中国石油勘探, 2017, 22(1): 21-28. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201701004.htm XIE Jun, ZHANG Haomiao, SHE Chaoyi, et al. Practice of geology-engineering integration in Changning State Shale Gas Demonstration Area[J]. China Petroleum Exploration, 2017, 22(1): 21-28. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201701004.htm
[30]	章敬. 非常规油藏地质工程一体化效益开发实践: 以准噶尔盆地吉木萨尔凹陷芦草沟组页岩油为例[J]. 断块油气田, 2021, 28(2): 151-155. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202102003.htm ZHANG Jing. Effective development practices of geology-enginee-ring integration on unconventional oil reservoirs: taking Lucaogou Formation shale oil in Jimsar Sag, Junggar Basin for example[J]. Fault-Block Oil and Gas Field, 2021, 28(2): 151-155. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202102003.htm

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Development practice and challenges of deep shale gas in southern Sichuan Basin

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