准噶尔盆地吉木萨尔凹陷二叠系芦草沟组页岩油立体井网整体压裂设计技术研究与实践

doi:10.3969/j.issn.1002-302x.2022.02.008

摘要/Abstract

摘要： 准噶尔盆地吉木萨尔凹陷页岩油成藏条件复杂，储层非均质性强，持续稳产能力差，油田开发经济效益较差。为探索吉木萨尔凹陷页岩油规模开发可行性，新疆油田逐步加大勘探开发力度，历经10年研究与实践，以实现“缝控储量”为改造目标，立足高效低成本设计理念，形成了“高密度布缝+高强度改造+低成本材料”为特色的体积压裂技术体系。在开发向平台化、多层系模式转变下，需攻关研究立体井网整体压裂技术，提高油藏采出程度。通过地质工程一体化研究，形成大平台整体改造设计方法；结合对压裂时间、段间应力场动态变化的精细描述，确立大平台施工顺序优化方案；基于精细地震解释，建立压裂时套管变形风险分级预测技术和控制措施。2021年，完成吉木萨尔页岩油首个立体开发平台整体改造现场试验，实现压裂零丢段和钻塞无遇阻的安全压裂指标，整体生产效果大幅提升，为吉木萨尔页岩油高质量建产树立了优质范本，有力支撑了国家级陆相页岩油示范区的高效建设。

关键词: 吉木萨尔凹陷, 页岩油, 水平井, 立体开发, 整体压裂

Abstract: The conditions for shale oil accumulations are complicated in Jimsar Depression of the Junggar Basin. The reservoir is strong for heterogeneity and poor in sustainable productivity. The economic performance is unsatisfactory in development of the oilfield. Therefore, Xinjiang Oilfield has gradually stepped up exploration and development in the efforts to study the feasibility for a large-scale shale oil development in Jimsar Sag. Based on a decade of research and practice efforts and aiming at “fracture-controlled reserves” for transformation, Xinjiang Oilfield has pursued the cost-effective design conception and developed the volume fracturing technological system characterized in “high-density cutting + high-strength transformation + low-cost materials”. With development in transition to platform and multi-layer series mode, it is necessary to study integrated fracturing technology of 3D well pattern to improve the producing degree of reservoirs. The large-platform integrated transformation design method was developed on the basis of the engineering technological integration research. The optimization plan for large-platform service sequence was determined by means of the fine description of dynamic changes in fracturing time and stress field between segments. The classification prediction technology and control measures for casing deformation risks at the time of fracturing were developed on the basis of the detailed seismic interpretation. The on-site experiment of the first 3D development platform for integrated transformation was completed in 2021, meeting the fracturing safety targets of zero fracturing loss and unimpeded drill plugs. With substantial improvement of production, the fracturing technological system set a good example for constructing a high-quality productivity for Jimsar shale oil and effectively help construct the national demonstration zone for continental shale oil.

中图分类号:

TE357

王俊超　李嘉成　陈希　马明伟　田志华　程垒明　陈璐. 准噶尔盆地吉木萨尔凹陷二叠系芦草沟组页岩油立体井网整体压裂设计技术研究与实践[J]. 石油科技论坛, 2022, 41(2): 62-68.

Wang Junchao, Li Jiacheng, Chen Xi, Ma Mingwei, Tian Zhihua, Cheng Leiming, Chen Lu. Research and Practice of Integrated Fracturing Design Technology for 3D Well Pattern of Permian Lucaogou Formation in Jimsar Depression in Junggar Basin[J]. Petroleum Science and Technology Forum, 2022, 41(2): 62-68.

参考文献

[1]　马明伟,祝健,李嘉成,等.吉木萨尔凹陷芦草沟组页岩油储集层渗吸规律[J].新疆石油地质,2021,42(6):702-708.
Ma Mingwei, Zhu Jian, Li Jiacheng, et al. Imbibition law of shale oil reservoirs in the Lucaogou Formation in Jimsar Sag[J]. Xinjiang Petroleum Geology, 2021,42(6):702-708.
[2]　王宜林,张义杰,王国辉,等. 准噶尔盆地油气勘探开发成果及前景[J].新疆石油地质,2002,23(6): 449-455.
Wang Yilin, Zhang Yijie, Wang Guohui, et al. Achievements and prospect for petroleum exploration and development in Junggar Basin[J]. Xinjiang Petroleum Geology, 2002,23(6):449-455.
[3]　吴宝成,李建民,邬元月,等.准噶尔盆地吉木萨尔凹陷芦草沟组页岩油上甜点地质工程一体化开发实践[J].中国石油勘探,2019,24(5):679-689.
Wu Baocheng, Li Jianmin, Wu Yuanyue, et al. Development practices of geology-engineering integration on upper sweet spots of Lucaogou Formation shale oil in Jimsar sag, Junggar Basin[J]. China Petroleum Exploration, 2019, 24(5): 679-689.
[4]　李国欣,朱如凯.中国石油非常规油气发展现状、挑战与关注问题[J].中国石油勘探,2020,25(2):1-13.
Li Guoxin, Zhu Rukai. Progress, challenges and key issues of unconventional oil and gas development of CNPC[J]. China Petroleum Exploration, 2020, 25(2):1-13.
[5]　章敬,罗兆,徐明强,等.新疆油田致密油地质工程一体化实践与思考[J].中国石油勘探,2017,22(1):12-20.
Zhang Jing, Luo Zhao, Xu Mingqiang, et al. Application of geology-engineering integration in development of tight oil in Xinjiang Oilfield[J]. China Petroleum Exploration, 2017, 22(1):12-20.
[6]　匡立春,胡文瑄,王绪龙,等.吉木萨尔凹陷芦草沟组致密油储层初步研究：岩性与孔隙特征分析[J].高校地质学报,2013,19(3):147-153.
Kuang Lichun, Hu Wenxuan, Wang Xulong, et al. Research of the tight oil reservoir in the Lucaogou Formation in Jimusar Sag: Analysis of lithology and porosity characteristics[J]. Geological Journal of China Universities, 2013, 19(3):147-153.
[7]　章敬,李佳琦,史晓川,等.吉木萨尔凹陷致密油层压裂工艺探索与实践[J].新疆石油地质,2013,34(6):710-712.
Zhang Jing, Li Jiaqi, Shi Xiaochuan, et al. Fracturing technology for dense oil reservoir in Jimusaer Sag: probe and practice [J]. Xinjiang Petroleum Geology,2013,34(6):710-712.
[8]　林森虎,邹才能,袁选俊,等. 美国致密油开发现状及启示[J].岩性油气藏,2011,23(4):25-32.
Lin Senhu, Zou Caineng, Yuan Xuanjun, et al. Status quo of tight oil exploitation in the United States and its implication [J]. Lithologic Reservoirs,2011,23(4):25-32.
[9]　窦宏恩,马世英.巴肯致密油藏开发对我国开发超低渗透油藏的启示[J].石油钻采工艺,2012, 34(2):120-124.
Dou Hong’en, Ma Shiying. Lessons learned from oil production of tight oil reservoirs in Bakken play[J]. Oil Drilling & Production Technology,2012,34(2):120-124.
[10] 唐玮,梁坤,冯金德,等.低油价下美国页岩油困境对我国油田勘探开发的启示[J].石油科技论坛,2020,39(4):26-30.
Tang Wei, Liang Kun, Feng Jinde, et al. Enlightenment from dilemma of US shale oil development under low oil prices[J]. Petroleum Science and Technology Forum,2020,39(4):26-30.
[11] 刘合,李国欣,姚子修,等.页岩油勘探开发“点—线—面”方法论[J].石油科技论坛,2020,39(2):1-5.
Liu He, Li Guoxin, Yao Zixiu, et al. “Point-line-area” methodology of shale oil exploration and development[J]. Petroleum Science and Technology Forum,2020,39(2): 1-5.
[12] 邹才能,赵群,王红岩,等.非常规油气勘探开发理论技术助力我国油气增储上产[J].石油科技论坛,2021,40(3):72-79.
Zou Caineng, Zhao Qun, Wang Hongyan, et al. Theory and technology of unconventional oil and gas exploration and development helps China increase oil and gas reserves and production[J]. Petroleum Science and Technology Forum,2021,40(3):72-79.
[13] 王小军,杨智峰,郭旭光,等. 准噶尔盆地吉木萨尔凹陷页岩油勘探实践与展望[J].新疆石油地质,2019, 40(4):402-413.
Wang Xiaojun, Yang Zhifeng, Guo Xuguang, et al. Practices and prospects of shale oil exploration in Jimsar Sag of Junggar Basin[J]. Xinjiang Petroleum Geology,2019,40(4):402-413.
[14] 高阳,叶义平,何吉祥,等.准噶尔盆地吉木萨尔凹陷陆相页岩油开发实践[J].中国石油勘探,2020,25(2):133-141.
Gao Yang, Ye Yiping, He Jixiang, et al. Development practice of continental shale oil in Jimsar sag in the Junggar Basin [J]. China Petroleum Exploration,2020,25(2):133-141.
[15] 赵金洲,陈曦宇,刘长宇,等.水平井分段多簇压裂缝间干扰影响分析[J].天然气地球科学,2015,26(3):533-538.
Zhao Jinzhou, Chen Xiyu, Liu Changyu, et al. The analysis of crack interaction in multi-stage horizontal fracturing[J]. Natural Gas Geoscience,2015,26(3):533-538.
[16] 封猛,胡广文,丁心鲁,等.吉木萨尔凹陷致密储层水平井压裂井间干扰分析[J].石油地质与工程, 2018,32(3):108-110.
Feng Meng, Hu Guangwen, Ding Xinlu, et al. Well interference analysis during horizontal well fracturing of dense reservoirs in Jimusar Sag[J]. Petroleum Geology and Engineering,2018,32(3):108-110.
[17] Liu Zhe, Yang Lifeng, Meng Zhuanyou, et al. Evaluation of the adaptability of quartz sand for fracturing in Jimsar Shale oil[C]. 2020 International Field Exploration and Development Conference, IFEDC-20205803.
[18] 南荣丽,田亚凯,吕蓓,等.吉木萨尔致密储层压裂多缝干扰产能分析[J].科学技术与工程,2020,20(25):10235-10241.
Nan Rongli, Tian Yakai, Lv Bei, et al. Multi-fracture interference and productivity analysis in Jimusar tight reservoir[J]. Science Technology and Engineering,2020,20(25):10235-10241.
[19] 郭旭光,何文军,杨森,等.准噶尔盆地页岩油“甜点区”评价与关键技术应用：以吉木萨尔凹陷二叠系芦草沟组为例[J].天然气地球科学,2019,30(8):1168-1179.
Guo Xuguang, He Wenjun, Yang sen, et al. Evaluation and application of key technologies of “sweet area” of shale oil in Junggar Basin: Case study of Permian Lucaogou Formation in Jimusar Depression[J]. Natural Gas Geoscience,2019,30(8): 1168-1179.
[20] 支东明,唐勇,杨智峰,等.准噶尔盆地吉木萨尔凹陷陆相页岩油地质特征与聚集机理[J].石油与天然气地质,2019,40(3):524-536.
Zhi Dongming, Tang Yong, Yang Zhifeng, et al. Geological characteristics and accumulation mechanism of continental shale oil in Jimusaer sag, Junggar Basin[J].Oil & Gas Geology,2019,40(3):524-536.
[21] 许琳,常秋生,杨成克,等.吉木萨尔凹陷二叠系芦草沟组页岩油储层特征及含油性[J].石油与天然气地质, 2019,40(3):535-549.
Xu Lin, Chang Qiusheng, Yang Chengke, et al. Characteristics and oil-bearing capability of shale oil reservoir in the Permian Lucaogou Formation, Jimusaer sag[J].Oil & Gas Geology,2019,40( 3):535-549．
[22] 董岩,徐东升,钱根葆,等. 吉木萨尔页岩油“甜点”预测方法[J]. 特种油气藏,2020,27(3):54-59.
Dong Yan, Xu Dongsheng, Qian Genbao, et al. Shale oil “Sweet-spot” prediction in Jimusar Sag[J]. Special Oil & Gas Reservoirs,2020,27(3): 54-59.
[23] 高阳,王英伟,王玉多,等.吉木萨尔凹陷芦草沟组致密储集层岩石力学特征[J].新疆石油地质,2016,37(2):158-162.
Gao Yang, Wang Yingwen, Wang Yuduo, et al. Rock mechanics characteristics of Lucaogou tight oil reservoir in Jimusaer Sag, Junggar Basin[J].Xinjiang Petroleum Geology,2016,37(2):158-162.
[24] 任岩,曹宏,姚逢昌,等.吉木萨尔致密油储层脆性及可压裂性预测[J].石油地球物理勘探,2018,53(3):511-519.
Ren Yan, Cao Hong, Yao Fengchang, et al. Brittleness and fracability prediction of tight oil reservoir in Jimsar Sag, Junggar Basin[J].Oil Geophysical Prospecting,2018,53(3):511-519.
[25] 王小军,梁利喜,赵龙,等.准噶尔盆地吉木萨尔凹陷芦草沟组含油页岩岩石力学特性及可压裂性评价[J].石油与天然气地质, 2019,40(3):661-668.
Wang Xiaojun, Liang Lixi, Zhao Long, et al. Rock mechanics and fracability evaluation of the Lucaogou Formation oil shales in Jimusaer Sag, Junggar Basin[J]. Oil & Gas Geology,2019,40(3):661-668.
[26] 程垒明.吉木萨尔凹陷页岩油水平井地质工程一体化三维压裂设计探索[J]. 石油地质与工程,2021,35(2):88-92.
Cheng Leiming. Exploration of geological engineering integrated 3D fracturing design for horizontal wells in Jimsar shale oil reservoirs [J]. Petroleum Geology and Enginneering,2021,35(2):88-92.
[27] Huang Xingning, Guo Diyu, Zhang Yan, et al. Application of geomechanics research in highly efficient development of unconventional resources--A case study of shale oil in Lucaogou formation in Jimsar Sag[C]. 2020 International Field Exploration and Development Conference, IFEDC-20205271.