油气藏评价与开发 >
2023 , Vol. 13 >Issue 2: 141 - 151
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2023.02.002
苏北盆地溱潼凹陷阜二段断块型页岩油定向井开发模式及实践
收稿日期: 2023-02-14
网络出版日期: 2023-04-26
基金资助
中国石化科技部项目“苏北盆地页岩油地质工程一体化关键技术研究”(P21112);中国石化科技部项目“苏北CCUS-EOR一体化技术研究”(P21107)
Development mode and practice of fault-block oriented shale oil well in the second member of Funing Formation, Qintong Sag, Subei Basin
Received date: 2023-02-14
Online published: 2023-04-26
为探索溱潼凹陷断块型页岩油效益开发路径,在阜二段页岩油地质特征研究基础上,提出定向井加拟水平井压裂开发模式,实施两口井均获成功。研究结果表明:苏北盆地溱潼凹陷深凹带东西两翼为构造复杂区,发育断块型页岩油,具有“厚度大、天然缝网发育、压力系数高、可动性和可改造性好”的地质特点,不适合长水平井开发,具备定向井开发的地质条件。厚层页岩油多套层系开发,定向井矩形井网有利于开展CO2吞吐,菱形反九点井网是CO2驱开发的合理井网模式。采用“规模注液蓄能量+限流射孔促均衡+调节排量稳缝网+三级支撑保充填+全电泵连续施工”为主的压裂工艺技术体系,定向井“拟水平井压裂”能达到水平井的改造效果,单段改造体积较水平井提升28.6 %。页岩油定向井具有“初期产能高、见油早、返排率低、含水下降快,稳产时间长”的生产特点,单段弹性产率高、采出程度高、经济效益好,率先实现页岩油效益开发,展现了构造复杂区定向井评价页岩油的良好前景。
姚红生 , 云露 , 昝灵 , 张龙胜 , 邱伟生 . 苏北盆地溱潼凹陷阜二段断块型页岩油定向井开发模式及实践[J]. 油气藏评价与开发, 2023 , 13(2) : 141 -151 . DOI: 10.13809/j.cnki.cn32-1825/te.2023.02.002
In order to explore the beneficial development path of fault-block shale oil in Qintong Sag, a development mode for the fracturing of directional wells combined with pseudo-horizontal wells has been proposed based on the study on the geological characteristics of shale oil in the second member of Funing Formation, and two wells are successfully implemented. The results show that the east and west wings of the deep sag belt of Qitong Sag in Subei Basin are structural complex areas with fault-block shale reservoirs, which are with large thick, developed natural fracture network, high pressure coefficient, and good mobility and transformability. The geological conditions here is not suitable for the development of long horizontal wells but for the directional wells. For the multi-layer development of thick shale oil, the rectangular directional well pattern is conducive to the CO2 huff and puff, while the diamond reverse nine-spot well pattern is reasonable for the CO2 flooding. Therefore, with the fracturing technology system based on “large-scale liquid injection energy storage & flow limiting perforation promotion and equalization & flow adjustment and fracture-stabilizing network & three-stage support and maintenance filling & continuous construction with all electric pumps”, the fracturing of the directional wells took as the “pseudo-horizontal well” can achieve the transformation effect of the horizontal wells, and the transformation volume of the single stage is 28.6 % larger than that of horizontal wells. This new develop mode of shale oil has high initial productivity, early oil breakthrough time, low flowback rate, fast water cut decline, and long stable production time. The single stage has high elastic productivity, high recovery degree, and good economic benefits, realizing beneficial development of shale oil in advance. The beneficial development shows a good prospect for the evaluation of shale oil in complex structural areas by the directional wells.
[1] | 胡素云, 白斌, 陶士振, 等. 中国陆相中高成熟度页岩油非均质地质条件与差异富集特征[J]. 石油勘探与开发, 2022, 49(2): 224-237. |
[1] | HU Suyun, BAI Bin, TAO Shizhen, et al. Heterogeneous geological conditions and differential enrichment of medium and high maturity continental shale oil in China[J]. Petroleum Exploration and Development, 2022, 49(2): 224-237. |
[2] | 李阳, 赵清民, 吕琦, 等. 中国陆相页岩油开发评价技术与实践[J]. 石油勘探与开发, 2022, 49(5): 955-964. |
[2] | LI Yang, ZHAO Qingmin, LYU Qi, et al. Evaluation technology and practice of continental shale oil development in China[J]. Petroleum Exploration and Development, 2022, 49(5): 955-964. |
[3] | 邹才能, 潘松圻, 荆振华, 等. 页岩油气革命及影响[J]. 石油学报, 2020, 41(1): 1-12. |
[3] | ZOU Caineng, PAN Songqi, JING Zhenhua, et al. Shale oil and gas revolution and its impact[J]. Acta Petrolei Sinica, 2020, 41(1): 1-12. |
[4] | 何文渊, 蒙启安, 冯子辉, 等. 松辽盆地古龙页岩油原位成藏理论认识及勘探开发实践[J]. 石油学报, 2022, 43(1): 1-14. |
[4] | HE Wenyuan, MENG Qi'an, FENG Zihui, et al. In-situ accumulation theory and exploration & development practice of Gulong shale oil in Songliao Basin[J]. Acta Petrolei Sinica, 2022, 43(1): 1-14. |
[5] | 柳波, 刘俊杰, 付晓飞, 等. 松辽盆地陆相页岩油地质研究方法与勘探评价进展[J]. 地质与资源, 2021, 30(3): 239-248. |
[5] | LIU Bo, LIU Junjie, FU Xiaofei, et al. Progress in geological research methods and exploration evaluation of continental shale oil in Songliao Basin[J]. Geology and Resources, 2021, 30(3): 239-248. |
[6] | 付金华, 牛小兵, 淡卫东, 等. 鄂尔多斯盆地中生界延长组长7段页岩油地质特征及勘探开发进展[J]. 中国石油勘探, 2019, 24(5): 601-614. |
[6] | FU Jinhua, NIU Xiaobing, DAN Weidong, et al. The geological characteristics and the progress on exploration and development of shale oil in Chang7 Member of Mesozoic Yanchang Formation, Ordos Basin[J]. China Petroleum Exploration, 2019, 24(5): 601-614. |
[7] | 李锦锋, 张凤博, 杨连如, 等. 下寺湾油田延长组长7段页岩油储层特征及勘探开发新突破[J]. 非常规油气, 2021, 8(2): 33-42. |
[7] | LI Jinfeng, ZHANG Fengbo, YANG Lianru, et al. The reservoir characteristics and new breakthrough in exploration and development of various types of shale oil in Chang 7 member of Yanchang Formation in Xiasiwan Oilfield[J]. Unconventional Oil & Gas, 2021, 8(2): 33-42. |
[8] | 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. |
[8] | 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. |
[9] | 刘惠民. 济阳坳陷页岩油勘探实践与前景展望[J]. 中国石油勘探, 2022, 27(1): 73-87. |
[9] | LIU Huimin. Exploration practice and prospect of shale oil in Jiyang Depression[J]. China Petroleum Exploration, 2022, 27(1): 73-87. |
[10] | 林腊梅, 程付启, 刘骏锐, 等. 济阳坳陷渤南洼陷沙一段页岩油资源潜力评价[J]. 中国海上油气, 2022, 34(4): 85-96. |
[10] | LIN Lamei, CHENG Fuqi, LIU Junrui, et al. Evaluation of shale oil resource potential in the Es1 Member in Bonan sag, Jiyang depression[J]. China Offshore Oil and Gas, 2022, 34(4): 85-96. |
[11] | 刘惠民, 李军亮, 刘鹏, 等. 济阳坳陷古近系页岩油富集条件与勘探战略方向[J]. 石油学报, 2022, 43(12): 1717-1729. |
[11] | LIU Huimin, LI Junliang, LlU Peng, et al. Enrichment conditions and strategic exploration direction of Paleogene shale oil in Jiyang depression[J]. Acta Petrolei Sinica, 2022, 43(12): 1717-1729. |
[12] | 姚红生, 昝灵, 高玉巧, 等. 苏北盆地溱潼凹陷古近系阜宁组二段页岩油富集高产主控因素与勘探重大突破[J]. 石油实验地质, 2021, 43(5): 776-783. |
[12] | YAO Hongsheng, ZAN Ling, GAO Yuqiao, et al. Main controlling factors for the enrichment of shale oil and significant discovery in second member of Paleogene Funing Formation, Qintong Sag, Subei Basin[J]. Petroleum Geology & Experiment, 2021, 43(5): 776-783. |
[13] | 马永生, 蔡勋育, 赵培荣, 等. 中国陆相页岩油地质特征与勘探实践[J]. 地质学报, 2022, 96(1): 155-171. |
[13] | MA Yongsheng, CAI Xunyu, ZHAO Peirong, et al. Geological characteristics and exploration practices of continental shale oil in China[J]. Acta Geologica Sinica, 2022, 96(1): 155-171. |
[14] | 蔚远江, 王红岩, 刘德勋, 等. 中国陆相页岩油示范区发展现状及建设可行性评价指标体系[J]. 地球科学, 2023, 48(1): 191-205. |
[14] | YU Yuanjiang, WANG Hongyan, LIU Dexun, et al. Development status and feasibility evaluation index system of continental shale oil demonstration area in China[J]. Earth Science, 2023, 48(1): 191-205. |
[15] | 鲜成钢, 李国欣, 李曹雄, 等. 陆相页岩油效益开发的若干问题[J]. 地球科学, 2023, 48(1): 14-29. |
[15] | XIAN Chenggang, LI Guoxin, LI Caoxiong, et al. Key evaluation aspects for economic development of continental shale oil[J]. Earth Science, 2023, 48(1): 14-29. |
[16] | 张方, 高阳, 李映艳, 等. 页岩油不同类型甜点对水平井压裂产能影响规律[J]. 中国海上油气, 2022, 34(5): 123-131. |
[16] | ZHANG Fang, GAO Yang, LI Yingyan, et al. Effects of different types of sweet spots on fracturing and productivity of horizontal wells in shale oil reservoirs[J]. China Offshore Oil and Gas, 2022, 34(5): 123-131. |
[17] | 昝灵, 骆卫峰, 印燕铃, 等. 苏北盆地溱潼凹陷古近系阜宁组二段页岩油形成条件及有利区评价[J]. 石油实验地质, 2021, 43(2): 233-241. |
[17] | ZAN Ling, LUO Weifeng, YIN Yanling, et al. Formation conditions of shale oil and favorable targets in the second member of Paleogene Funing Formation in Qintong Sag, Subei Basin[J]. Petroleum Geology & Experiment, 2021, 43(2): 233-241. |
[18] | 慕立俊, 李宪文, 唐梅荣. 定向井体积压裂工艺设想及实践[C]// 第一届国际压裂酸化大会论文集. 西安: 陕西省石油学会, 2010. |
[18] | MULijun, LIxianwen, TANGMeirong. The assumption and practice of new multi-fracture fracturing technology for directional well[C]// 1ST Hydraulic Fracturing & Acidizing. Xi'an: Shaanxi Petroleum Society, 2010. |
[19] | 李凯凯, 安然, 王秀坤, 等. 安 83 区页岩油定向井注水吞吐采油实践及认识[C]// IPPTC国际石油石化技术会议论文集. 西安: 陕西省石油学会, 2021. |
[19] | LI Kaikai, AN Ran, WANG Xiukun, et al. Practice and analysis of water flood stimulation of directional wells in An83 shale oil block[C]// Proceedings of IPPTC International Petroleum and Petrochemical Technology Conference. Xi'an: Shaanxi Petroleum Society, 2021. |
[20] | 颜晋川, 刁素, 朱礼平, 等. 定向井压裂优化设计及现场应用[J]. 油气地质与采收率, 2008, 15(5): 102-104. |
[20] | YAN Jinchuan, DIAO Su, ZHU Liping, et al. Optimization and field application of hydraulic fracturing design of directional wells[J]. Petroleum Geology and Recovery Efficiency, 2008, 15(5): 102-104. |
[21] | 谭苗. 渭北长3定向井多裂缝形成机理及压裂技术研究[J]. 新疆石油天然气, 2016, 12(4): 44-47. |
[21] | TAN Miao. Fracturing technology research&formation mechanism of multiple fractures in directional well of chang 3 layer in Weibei oilfield[J]. Xinjiang Oil & Gas, 2016, 12(4): 44-47. |
[22] | 王磊. 定向井压裂裂缝扩展规律研究[D]. 青岛: 中国石油大学(华东), 2011. |
[22] | WANG Lei. Research on prolongation law of hydraulic fracture for directional well[D]. Qingdao: China University of Petroleum(East China), 2011. |
[23] | 李国欣, 朱如凯, 张永庶, 等. 柴达木盆地英雄岭页岩油地质特征、评价标准及发现意义[J]. 石油勘探与开发, 2022, 49(1): 18-31. |
[23] | LI Guoxin, ZHU Rukai, ZHANG Yongshu, et al. Geological characteristics, evaluation criteria and discovery significance of Paleogene Yingxiongling shale oil in Qaidam Basin, NW China[J]. Petroleum Exploration and Development, 2022, 49(1): 18-31. |
[24] | 李国欣, 伍坤宇, 朱如凯, 等. 巨厚高原山地式页岩油藏的富集模式与高效动用方式——以柴达木盆地英雄岭页岩油藏为例[J]. 石油学报, 2023, 44(1): 144-157. |
[24] | LI Guoxin, WU Kunyu, ZHU Rukai, et al. Enrichment model and high-efficiency production of thick plateau mountainous shale oil reservoir: A case study of the Yingxiongling shale oil reservoir in Qaidam Basin[J]. Acta Petrolei Sinica, 2023, 44(1): 144-157. |
[25] | 金之钧, 朱如凯, 梁新平, 等. 当前陆相页岩油勘探开发值得关注的几个问题[J]. 石油勘探与开发, 2021, 48(6): 1276-1287. |
[25] | JIN Zhijun, ZHU Rukai, LIANG Xinping, et al. Several issues worthy of attention in current lacustrine shale oil exploration and development[J]. Petroleum Exploration and Development, 2021, 48(6): 1276-1287. |
[26] | 李小龙, 孙伟. 页岩油储层“七性”关系评价研究——以苏北盆地溱潼凹陷阜宁组二段为例[J]. 非常规油气, 2022, 9(6): 34-41. |
[26] | LI Xiaolong, SUN Wei. Research on seven properties relationship evaluation of shale oil reservoir: A case study of the second member of Funing Formation in Qintong Sag of Subei Basin[J]. Unconventional Oil & Gas, 2022, 9(6): 34-41. |
[27] | 龚兵. 盐间页岩油藏注水吞吐技术研究[J]. 江汉石油职工大学学报, 2019, 32(2): 28-30. |
[27] | GONG Bing. A study of water injection-production technology for inter-salt shale reservoir[J]. Journal of Jianghan Petroleum University of Staff and Workers, 2019, 32(2): 28-30. |
[28] | 赵艳玲. 江汉盆地潜江组盐间页岩油注水渗吸—驱替机理研究[D]. 青岛: 中国石油大学(华东), 2020. |
[28] | ZHAO Yanling. Study on the mechanism of water imbibition and displacement for inter-salt shale oil in Qianjiang Depression, Jianghan Basin[D]. Qingdao: China University of Petroleum(East China), 2020. |
[29] | 蒋廷学. 非常规油气藏新一代体积压裂技术的几个关键问题探讨[J]. 石油钻探技术, 2023, 51(2): 1-9. |
[29] | JIANG Tingxue. Discussion on several key issues of the new-generation volume fracturing technology for unconventional reservoirs[J]. Petroleum Drilling Techniques, 2023, 51(2): 1-9. |
/
〈 | 〉 |