超低渗透砂岩油藏水平井同井同步注采补能方法&mdash;&mdash;以鄂尔多斯盆地长庆油田为例

王晶; 刘俊刚; 李兆国; 李洪畅; 张皎生; 李文青; 张原立; 平义; 杨焕英; 王萍

doi:10.11698/PED.2020.04.14

石油勘探与开发 >

2020 , Vol. 47 >Issue 4: 772 - 779

DOI: https://doi.org/10.11698/PED.2020.04.14

油气田开发

超低渗透砂岩油藏水平井同井同步注采补能方法——以鄂尔多斯盆地长庆油田为例

王晶 ,
刘俊刚 ,
李兆国 ,
李洪畅 ,
张皎生 ,
李文青 ,
张原立 ,
平义 ,
杨焕英 ,
王萍

展开

1.中国石油长庆油田公司勘探开发研究院,西安 710018;
2.低渗透油气田勘探开发国家工程实验室,西安 710018

王晶（1984-）,男,陕西铜川人,硕士,中国石油长庆油田勘探开发研究院工程师,主要从事超低渗透油田开发方面的研究工作。地址：陕西省西安市凤城4路,长庆油田勘探开发研究院石油开发一室,邮政编码：710018。E-mail: WJ920_cq@petrochina.com.cn

收稿日期: 2019-08-05

修回日期: 2020-02-25

网络出版日期: 2020-07-20

基金资助

国家科技重大专项“鄂尔多斯盆地大型低渗透岩性地层油气藏开发示范工程（二期）”（2016ZX05050）; 国家科技重大专项“低渗-超低渗油藏有效开发关键技术”（2017ZX05013-004）

收起

Synchronous injection-production energy replenishment for a horizontal wellin an ultra-low permeability sandstone reservoir: A case study of Changqing oilfield in Ordos Basin, NW China

WANG Jing ,
LIU Jungang ,
LI Zhaoguo ,
LI Hongchang ,
ZHANG Jiaosheng ,
LI Wenqing ,
ZHANG Yuanli ,
PING Yi ,
YANG Huanying ,
WANG Ping

Expand

1. Exploration and Development Research Institute of PetroChina Changqing Oilfield Company, Xi’an 710018, China;
2. National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields, Xi’an 710018, China

Received date: 2019-08-05

Revised date: 2020-02-25

Online published: 2020-07-20

Fold

摘要

针对超低渗透砂岩油藏水平井中段难以建立有效水驱驱替压力系统问题,提出在同一口水平井上采用封隔器、密封插管等工具,实现部分压裂缝注水、部分压裂缝采油,在同一水平井内形成分段同步注采的补能新方法,即水平井同井同步注采。该方法可缩小注入端与采出端的距离,快速建立有效水驱驱替系统;该方法将井间驱替转变为水平井段间驱替,将点状水驱转变为线状均匀水驱,可大幅提高水驱波及体积,缩短见效周期。研究表明：①超低渗透砂岩油藏水平井同井同步注采,注水段应选择天然裂缝方向与人工裂缝方向一致或天然裂缝不发育的层段,段间距60~80 m;②水平井同井同步注采除控制注入压力外,采用周期注水可降低随注水时间延长注水压力逐渐上升导致的地层天然裂缝开启、生长或地层破裂风险;③现场试验验证,水平井同井同步注采补能方法可有效提升单井产量且经济效益良好,可大规模应用于超低渗透砂岩油藏的开发。图14表5参21

关键词： 超低渗透油藏; 砂岩油藏; 水平井; 分段压裂; 同井同步注采; 段间驱替; 开发效果

本文引用格式

王晶 , 刘俊刚 , 李兆国 , 李洪畅 , 张皎生 , 李文青 , 张原立 , 平义 , 杨焕英 , 王萍 . 超低渗透砂岩油藏水平井同井同步注采补能方法——以鄂尔多斯盆地长庆油田为例[J]. 石油勘探与开发, 2020 , 47(4) : 772 -779 . DOI: 10.11698/PED.2020.04.14

Abstract

It is difficult to build an effective water flooding displacement pressure system in the middle section of a horizontal well in an ultra-low permeability sandstone reservoir. To solve this problem, this study proposes to use packers, sealing cannula and other tools in the same horizontal well to inject water in some fractures and produce oil from other fractures. This new energy supplement method forms a segmental synchronous injection-production system in a horizontal well. The method can reduce the distance between the injection end and the production end, and quickly establish an effective displacement system. Changing the displacement between wells to displacement between horizontal well sections, and point water flooding to linear uniform water flooding, the method can enhance water sweeping volume and shorten waterflooding response period. The research shows that: (1) In the synchronous injection and production of horizontal well in an ultra-low-permeability sandstone reservoir, the water injection section should select the section where the natural fractures and artificial fractures are in the same direction or the section with no natural fractures, and the space between two sections should be 60-80 m. (2) In addition to controlling injection pressure, periodic water injection can be taken to reduce the risk of re-opening and growth of natural fractures or formation fracture caused by the gradual increase of water injection pressure with water injection going on. (3) Field tests have verified that this method can effectively improve the output of single well and achieve good economic benefits, so it can be widely used in the development of ultra-low permeability sandstone reservoirs.

Key words： ultra-low permeability reservoir; sandstone reservoir; horizontal well; staged fracturing; synchronous injection-production; intersegment displacement; development effect

参考文献

[1] 任大忠, 孙卫, 赵继勇, 等. 鄂尔多斯盆地岩性油藏微观水驱油特征及影响因素[J]. 中国矿业大学学报, 2015, 44(6): 1043-1052.
REN Dazhong, SUN Wei, ZHAO Jiyong, et al.Microscopic waterflooding characteristics of lithologic reservoirs in Ordos basin and its influence factors[J]. Journal of China University of Mining & Technology, 2015, 44(6): 1043-1052.
[2] 史成恩, 万晓龙, 赵继勇, 等. 鄂尔多斯盆地超低渗透油层开发特征[J]. 成都理工大学学报(自然科学版), 2007, 34(5): 538-542.
SHI Cheng’en, WAN Xiaolong, ZHAO Jiyong, et al.Development characteristics of super-low permeability oil layers in Ordos Basin, China[J]. Journal of Chengdu University of Technology (Natural Science Edition), 2007, 34(5): 538-542.
[3] 樊建明, 屈雪峰, 王冲, 等. 鄂尔多斯盆地致密储集层天然裂缝分布特征及有效裂缝预测新方法[J]. 石油勘探与开发, 2016, 43(5): 740-748.
FAN Jianming, QU Xuefeng, WANG Chong, et al.Natural fracture distribution and a new method predicting effective fractures in tight oil reservoirs of Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2016, 43(5): 740-748.
[4] 张忠义, 陈世加, 杨华, 等. 鄂尔多斯盆地三叠系长7段致密油成藏机理[J]. 石油勘探与开发, 2016, 43(4): 590-599.
ZHANG Zhongyi, CHEN Shijia, YANG Hua, et al.Tight oil accumulation mechanisms of Triassic Yanchang Formation Chang 7 Member, Ordos Basin, China[J]. Petroleum Exploration and Development, 2016, 43(4): 590-599.
[5] 赵继勇, 安小平, 王晶, 等. 超低渗油藏井网适应性定量评价方法: 以鄂尔多斯盆地三叠系长6、长8油藏为例[J]. 石油勘探与开发, 2018, 45(3): 482-488.
ZHAO Jiyong, AN Xiaoping, WANG Jing, et al.A quantitative evaluation for well pattern adaptability in ultra-low permeability oil reservoirs: A case study of Triassic Chang 6 and Chang 8 reservoirs in Ordos Basin[J]. Petroleum Exploration and Development, 2018, 45(3): 482-488.
[6] 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.
[7] 潘林华, 张士诚, 程礼军, 等. 水平井“多段分簇”压裂簇间干扰的数值模拟[J]. 天然气工业, 2014, 34(1): 74-79.
PAN Linhua, ZHANG Shicheng, CHENG Lijun, et al.A numerical simulation of the inter-cluster interference in multi-cluster staged fracking for horizontal wells[J]. Natural Gas Industry, 2014, 34(1): 74-79.
[8] 赵继勇, 樊建明, 何永宏, 等. 超低渗—致密油藏水平井开发注采参数优化实践: 以鄂尔多斯盆地长庆油田为例[J]. 石油勘探与开发, 2015, 42(1): 68-75.
ZHAO Jiyong, FAN Jianming, HE Yonghong, et al.Optimization of horizontal well injection-production parameters for ultra-low permeable-tight oil production: A case from Changqing Oilfield, Ordos Basin[J]. Petroleum Exploration and Development, 2015, 42(1): 68-75.
[9] 曾保全, 程林松, 李春兰, 等. 特低渗透油藏压裂水平井开发效果评价[J]. 石油学报, 2010, 31(5): 791-796.
ZENG Baoquan, CHENG Linsong, LI Chunlan, et al.Development evaluation of fractured horizontal wells in ultra-low permeability reservoirs[J]. Acta Petrolei Sinica, 2010, 31(5): 791-796.
[10] 李龙龙, 姚军, 李阳, 等. 分段多簇压裂水平井产能计算及其分布规律[J]. 石油勘探与开发, 2014, 41(4): 457-461.
LI Longlong, YAO Jun, LI Yang, et al.Productivity calculation and distribution of staged multicluster fractured horizontal wells[J]. Petroleum Exploration and Development, 2014, 41(4): 457-461.
[11] 樊建明, 杨子清, 李卫兵. 鄂尔多斯盆地长7致密油水平井体积压裂开发效果评价及认识[J]. 中国石油大学学报(自然科学版), 2015, 39(4): 103-110.
FAN Jianming, YANG Ziqing, LI Weibing.Assessment of fracturing treatment of horizontal wells using SRV technique for Chang-7 tight oil reservoir in Ordos Basin[J]. Journal of China University of Petroleum (Natural Science Edition), 2015, 39(4): 103-110.
[12] MILLER C K, WATERS G A, RYLANDER E I.Evaluation of production log data from horizontal wells drilled in organic shales[R]. SPE 144326, 2011.
[13] WIGGER E, VISWANATHAN A, FISHER K, et al.Logging solutions for completion optimization in unconventional resource plays[R]. SPE 167726, 2014.
[14] 程心平, 刘敏, 罗昌华, 等. 海上油田同井注采技术开发与应用[J]. 石油矿场机械, 2010, 39(10): 82-87.
CHENG Xinping, LIU Min, LUO Changhua, et al.Development and application of single well integral injection/production technique[J]. Oil Field Equipment, 2010, 39(10): 82-87.
[15] 杨树人, 谢威. 同井注采油水分离器的优化设计[J]. 特种油气藏, 2011, 18(6): 106-108.
YANG Shuren, XIE Wei.Optimization design of oil-water separator for injection-production in the same well[J]. Special Oil & Gas Reservoirs, 2011, 18(6): 106-108.
[16] 刘合, 高扬, 裴晓含, 等. 旋流式井下油水分离同井注采技术发展现状及展望[J]. 石油学报, 2018, 39(4): 463-471.
LIU He, GAO Yang, PEI Xiaohan, et al.Progress and prospect of downhole cyclone oil-water separation with single-well injection-production technology[J]. Acta Petrolei Sinica, 2018, 39(4): 463-471.
[17] 程时清, 汪洋, 郎慧慧, 等. 致密油藏多级压裂水平井同井缝间注采可行性[J]. 石油学报, 2017, 38(12): 1411-1419.
CHENG Shiqing, WANG Yang, LANG Huihui, et al.Feasibility of inter-fracture injection and production for the same multistage fractured horizontal well in tight oil reservoir[J]. Acta Petrolei Sinica, 2017, 38(12): 1411-1419.
[18] 于海洋, 杨中林, 马恬, 等. 致密油藏多级压裂井异井异步注采可行性研究[J]. 石油科学通报, 2018, 3(1): 32-44.
YU Haiyang, YANG Zhonglin, MA Tian, et al.The feasibility of asynchronous injection alternating production for multistage fractured horizontal wells in a tight oil reservoir[J]. Petroleum Science Bulletin, 2018, 3(1): 32-44.
[19] 樊建明, 陈小东, 雷征东, 等. 鄂尔多斯盆地致密油藏天然裂缝与人工裂缝特征及开发意义[J]. 中国石油大学学报(自然科学版), 2019, 43(3): 98-106.
FAN Jianming, CHEN Xiaodong, LEI Zhengdong, et al.Characteristics of natural and hydraulic fractures in tight oil reservoir in Ordos Basin and its implication to field development[J]. Journal of China University of Petroleum (Natural Science Edition), 2019, 43(3): 98-106.
[20] 周新桂, 张林炎, 黄臣军. 华庆探区长6₃储层破裂压力及裂缝开启压力估测与开发建议[J]. 中南大学学报(自然科学版), 2013, 44(7): 2812-2818.
ZHOU Xingui, ZHANG Linyan, HUANG Chenjun.Estimation of formation breakdown pressure and fracture open pressure of Chang 6₃ low permeable reservoir in Huaqing area and development suggestions[J]. Journal of Central South University (Science and Technology), 2013, 44(7): 2812-2818.
[21] 周文, 邓虎成, 单钰铭, 等. 断裂(裂缝)面的开启及闭合压力实验研究[J]. 石油学报, 2008, 29(2): 277-283.
ZHOU Wen, DENG Hucheng, SHAN Yuming, et al.Experiment research on open and closed pressure of fault (fracture)[J]. Acta Petrolei Sinica, 2008, 29(2): 277-283.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献