盐间页岩油体积压裂技术研究与实践

刘红磊; 徐胜强; 朱碧蔚; 周林波; 黄亚杰; 李保林

doi:10.3969/j.issn.1006-6535.2022.02.022

特种油气藏 >

2022 , Vol. 29 >Issue 2: 149 - 156

DOI: https://doi.org/10.3969/j.issn.1006-6535.2022.02.022

钻采工程

盐间页岩油体积压裂技术研究与实践

刘红磊 ,
徐胜强 ,
朱碧蔚 ,
周林波 ,
黄亚杰 ,
李保林

展开

1.页岩油气富集机理与有效开发国家重点实验室,北京 100101;
2.中国石化石油工程技术研究院,北京 100101;
3.中国石油玉门油田分公司,甘肃酒泉 735000;
4.中国石化江汉油田分公司,湖北武汉 430035

刘红磊(1976—),男,高级工程师,1999年毕业于中国石油大学(华东)石油工程专业,现主要从事低渗透储层改造理论研究与现场技术服务等工作。

收稿日期: 2021-01-18

修回日期: 2021-10-11

网络出版日期: 2023-01-10

基金资助

中国石化科技攻关项目“盐间页岩油增产工艺及试采技术研究”(P19013-5)

收起

Research and Practice of SRV Fracturing Technology for Inter-salt Shale Oil

Liu Honglei ,
Xu Shengqiang ,
Zhu Biwei ,
Zhou Linbo ,
Huang Yajie ,
Li Baolin

Expand

1. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101, China;
2. Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China;
3. PetroChina Yumen Oilfield Company, Jiuquan, Gansu 735000, China;
4. Sinopec Jianghan Oilfield Company, Wuhan, Hubei 430035, China

Received date: 2021-01-18

Revised date: 2021-10-11

Online published: 2023-01-10

Fold

摘要

盐间页岩油储层存在上下盐岩蠕变特征不清,压裂过程中易受上下塑性盐岩干扰;储层岩性组分多、敏感性复杂、孔隙连通性差,储层中可溶盐的溶解规律不清楚等特点。储层特点对体积压裂技术提出了较高要求,为寻求盐间页岩油高效开发手段,在潜江凹陷古近系盐间页岩油油藏的BYY1HF井试验采用CO₂增能复合压裂、耐酸压裂液加砂技术、密切割强加砂压裂技术和投球暂堵技术。CO₂增能复合压裂技术具有增加返排能力、改善基质孔渗性、穿透性强、返排率高的优势;耐酸压裂液体系在酸性环境(pH值为2～6)下性能稳定,携砂能力强,对储层伤害低;密切割强加砂压裂技术能克服“簇集效应”,促进各簇裂缝均匀开启及延伸,提高体积压裂效果。施工效果表明,该技术体系具有增强返排能力、改善储层孔渗性、提高岩石起裂能力及裂缝复杂度等优势,一定程度上提升了基质供油能力。该压裂技术试验对盐间页岩油大规模压裂改造具有较好的借鉴意义。

关键词： 盐间页岩油; 耐酸压裂液; CO₂复合体积压裂; 密切割; 暂堵转向; 潜江凹陷

本文引用格式

刘红磊 , 徐胜强 , 朱碧蔚 , 周林波 , 黄亚杰 , 李保林 . 盐间页岩油体积压裂技术研究与实践[J]. 特种油气藏, 2022 , 29(2) : 149 -156 . DOI: 10.3969/j.issn.1006-6535.2022.02.022

Abstract

The inter-salt shale oil reservoirs are characterized by unclear creep characteristics of the upper and lower salt rocks, susceptibility to interference with the upper and lower plastic rocks during fracturing, multiple lithological components, complex sensitivity, poor pore connectivity, and unclear dissolution pattern of soluble salts. There are more stringent requirements for SRV fracturing due to reservoir characteristics. For efficient development of inter-salt shale oil, Well BYY1HF in Paleogene inter-salt shale oil reservoir, Qianjiang Sag was tested with such technologies as CO₂ enhanced composite fracturing, acid-resistant fracturing fluid plus sanding, dense cutting plus forced-sanding fracturing, and temporary plugging fracturing with ball casting. CO₂ enhanced composite fracturing had the advantages of increased flowback capacity, improved matrix porosity and permeability, strong penetration, and high flowback rate. The acid-resistant fracturing fluid system could maintain stable performance, strong sand carrying capacity and low damage to reservoirs in acidic environment (pH 2-6). The dense cutting plus forced-sanding fracturing technology could eliminate the "agglomeration effect", promote the uniform opening and propagation of each cluster of fractures, and improve the SRV fracturing effect. The construction results showed that the technical system was advantaged by enhancing the flowback capacity, improving the porosity and permeability of the reservoir, promoting the rock capacity of fracturing initiation, fracture complexity, etc., and improving the oil supply capacity of the matrix to a certain extent. The test of fracturing technology is of great significance in reference for the large-scale fracturing transformation of inter-salt shale oil.

Key words： inter-salt shale oil; acid-resistant fracturing fluid; CO₂ complex SRV fracturing; dense cutting; temporary plug steering; Qianjiang Sag

参考文献

[1] 陈作,刘红磊,李英杰,等.国内外页岩油储层改造技术现状及发展建议[J].石油钻探技术,2021,49(4):1-7.
CHEN Zuo,LIU Honglei,LI Yingjie,et al.The current status and development suggestions for shale oil reservoir stimulation at home and abroad[J].Petroleum Drilling Techniques,2021,49(4):1-7.
[2] 张锦宏.中国石化页岩油工程技术现状与发展展望[J].石油钻探技术,2021,49(4):8-13.
ZHANG Jinhong.Present status and development prospects of Sinopec shale oil engineering technologies[J].Petroleum Drilling Techniques,2021,49(4):8-13.
[3] 孙焕泉,蔡勋育,周德华,等.中国石化页岩油勘探实践与展望[J].中国石油勘探,2019,24(5):569-575.
SUN Huanquan,CAI Xunyu,ZHOU Dehua,et al.Practice and prospect of Sinopec shale oil exploration[J].China Petroleum Exploration,2019,24(5):569-575.
[4] 蒋廷学,王海涛.中国石化页岩油水平井分段压裂技术现状与发展建议[J].石油钻探技术, 2021,49(4):14-21.
JIANG Tingxue,WANG Haitao.The current status and development suggestions for Sinopec′s staged fracturing technologies of horizontal shale oil wells[J].Petroleum Drilling Techniques,2021,49(4):14-21.
[5] 孙翰文,费繁旭,高阳,等.吉木萨尔陆相页岩水平井压裂后产量影响因素分析[J].特种油气藏,2020,27(2):108-114.
SUN Hanwen,FEI Fanxu,GAO Yang,et al.Production sensitivity analysis of fractured horizontal wells in Jimusar Continental Shale[J].Special Oil & Gas Reservoirs,2020,27(2):108-114.
[6] 赵振峰,李楷,赵鹏云,等.鄂尔多斯盆地页岩油体积压裂技术实践与发展建议[J].石油钻探技术,2021,49(4):85-91.
ZHAO Zhenfeng,LI Kai,ZHAO Pengyun,et al.Practice and development suggestions for volumetric fracturing technology for shale oil in the Ordos Basin[J].Petroleum Drilling Techniques,2021,49(4):85-91.
[7] 咸玉席,陈超峰,封猛,等.页岩油藏裂缝网络多相渗流数值模拟研究[J].石油钻探技术, 2021,49(5):94-100.
XIAN Yuxi,CHEN Chaofeng,FENG Meng,et al.Numerical simulation of multiphase flow in fracture networks in shale oil reservoir[J].Petroleum Drilling Techniques,2021,49(5):94-100.
[8] 李乐,王自翔,郑有恒,等.江汉盆地潜江凹陷潜三段盐韵律层页岩油富集机理[J].地球科学,2019,44(3):1012-1023.
LI Le,WANG Zixiang,ZHENG Youheng,et al.Mechanism of shale oil enrichment from the salt cyclotherm in Qian3 Member of Qianjiang Sag,Jianghan Basin[J].Earth Science,2019,44(3):1012-1023.
[9] 龙玉梅,陈曼霏,陈风玲,等.潜江凹陷潜江组盐间页岩油储层发育特征及影响因素[J].油气地质与采收率,2019,26(1):59-64.
LONG Yumei,CHEN Manfei,CHEN Fengling,et al.Characteristics and influencing factors of inter-salt shale oil reservoirs in Qianjiang Formation,Qianjiang Sag[J].Petroleum Geology and Recovery Efficiency,2019,26(1):59-64.
[10] 张鹏飞,卢双舫,李文浩,等.江汉盆地新沟嘴组页岩油储层物性下限[J].石油与天然气地质,2016,37(1):93-100.
ZHANG Pengfei,LU Shuangfang,LI Wenhao,et al.Lower limits of porosity and permeability of shale oil reservoirs in the Xin′gouzui Formation,Jianghan Basin[J].Oil & Gas Geology,2016,37(1):93-100.
[11] 徐二社,陶国亮,李志明,等.江汉盆地潜江凹陷盐间页岩油储层不同岩相微观储集特征——以古近系潜江组三段4亚段10韵律为例[J].石油实验地质,2020,42(2):193-201.
XU Ershe,TAO Guoliang,LI Zhiming,et al.Microscopic reservoir characteristics of different lithofacies from inter-salt shale oil reservoir in Qianjiang Sag,Jianghan Basin:a case study of Paleogene Eq₃^4-10 rhythm[J].Petroleum Geology & Experiment,2020,42(2):193-201.
[12] 康毅力,白佳佳,李相臣,等.水-岩作用对富有机质页岩应力敏感性的影响——以渝东南地区龙马溪组页岩为例[J].油气藏评价与开发,2019,9(5):54-62.
KANG Yili,BAI Jiajia,LI Xiangchen,et al.Influence of water-rock interaction on stress sensitivity of organic-rich shales:a case study from Longmaxi Formation in the southeast area of Chongqing[J].Reservoir Evaluation and Development,2019,9(5):54-62.
[13] 龚兵,杨峰,胡博宇.江汉盆地潜江组盐间页岩油藏储层盐析伤害特征[J].特种油气藏,2019,26(6):141-145.
GONG Bing,YANG Feng,HU Boyu.Salting-out damage of inter-salt shale oil reservoirs in the Qianjiang Formation of Jianghan Basin[J].Special Oil & Gas Reservoirs,2019,26(6):141-145.
[14] 王敏生,光新军,耿黎东.页岩油高效开发钻井完井关键技术及发展方向[J].石油钻探技术,2019,47(5):1-10.
WANG Minsheng,GUANG Xinjun,GENG Lidong.Key drilling/completion technologies and development trends in the efficient development of shale oil[J].Petroleum Drilling Techniques,2019,47(5):1-10.
[15] 管保山,刘玉婷,梁利,等.页岩油储层改造和高效开发技术[J].石油钻采工艺,2019,41(2):212-223.
GUAN Baoshan,LIU Yuting,LIANG Li,et al.Shale oil reservoir reconstruction and efficient development technology[J].Petroleum Drilling & Production Technology,2019,41(2):212-223.
[16] 刘国军,鲜学福,周军平,等.超临界CO₂致裂页岩实验研究[J].煤炭学报,2017,42(3):694-701.
LIU Guojun,XIAN Xuefu,ZHOU Junping,et al.Experimental study on the supercritical CO₂ fracturing of shale[J].Journal of China Coal Society,2017,42(3):694-701.
[17] 周庆凡,金之钧,杨国丰,等.美国页岩油勘探开发现状与前景展望[J].石油与天然气地质,2019,40(3):469-477.
ZHOU Qingfan,JIN Zhijun,YANG Guofeng,et al.Shale oil exploration and production in the U.S.:status and outlook[J].Oil & Gas Geology,2019,40(3):469-477.
[18] 秦长文,秦璇.美国鹰滩和尼奥泊拉拉页岩油富集主控因素[J].特种油气藏,2015,22(3):34-37.
QIN Changwen,QIN Xuan.Major controlling factors for shale oil enrichment in eagle ford and niobrara plays[J].Special Oil & Gas Reservoirs,2015,22(3):34-37.
[19] 黄杰,巩永刚,刘正伟,等.支撑剂指数设计方法在压裂充填施工中的应用研究[J].海洋石油,2020,40(1):47-50.
HUANG Jie,GONG Yonggang,LIU Zhengwei,et al.Application and research of proppant index design method on frac-pack[J].Offshore Oil,2020,40(1):47-50.
[20] 陈作,曾义金.深层页岩气分段压裂技术现状及发展建议[J].石油钻探技术,2016,44(1):6-11.
CHEN Zuo,ZENG Yijin.Present situations and prospects of multi-stage fracturing technology for deep shale gas development[J].Petroleum Drilling Techniques,2016,44(1):6-11.
[21] 张旭,蒋廷学,贾长贵,等.页岩气储层水力压裂物理模拟实验研究[J].石油钻探技术,2013,41(2):70-74.
ZHANG Xu,JIANG Tingxue,JIA Changgui,et al.Physical simulation of hydraulic fracturing of shale gas reservoir[J].Petroleum Drilling Techniques,2013,41(2):70-74.
[22] 郭印同,杨春和,贾长贵,等.页岩水力压裂物理模拟与裂缝表征方法研究[J].岩石力学与工程学报,2014,33(1):52-59.
GUO Yintong,YANG Chunhe,JIA Changgui,et al.Research on hydraulic fracturing physical simulation of shale and fracture characterization methods[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(1):52-59.
[23] 侯振坤,杨春和,王磊,等.大尺寸真三轴页岩水平井水力压裂物理模拟试验与裂缝延伸规律分析[J].岩土力学,2016,37(2):407-414.
HOU Zhenkun,YANG Chunhe,WANG Lei,et al.Hydraulic fracture propagation of shale horizontal well by large-scale true triaxial physical simulation test[J].Rock and Soil Mechanics,2016,37(2):407-414.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献