Characteristics of fracture propagation in radial wellbores of shale oil reservoirs with multiple lithologic layers

doi:10.7623/syxb202403006

Acta Petrolei Sinica ›› 2024, Vol. 45 ›› Issue (3): 559-573,585.DOI: 10.7623/syxb202403006

• OIL FIELD DEVELOPMENT • Previous Articles

Characteristics of fracture propagation in radial wellbores of shale oil reservoirs with multiple lithologic layers

Wu Xiaoguang¹, Long Tengda¹, Huang Zhongwei¹, Gao Wenlong², Li Gensheng¹, Xie Zixiao¹, Yang Rui¹, Lu Jingsong¹, Ma Jinliang¹

1. National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum(Beijing), Beijing 102249, China;
2. CNPC Great Wall Drilling Engineering Co., Ltd., Beijing 100101, China

Received:2023-05-31 Revised:2024-01-19 Published:2024-04-10

页岩油多岩性交互储层径向井穿层压裂裂缝扩展特征

武晓光¹, 龙腾达¹, 黄中伟¹, 高文龙², 李根生¹, 谢紫霄¹, 杨芮¹, 鲁京松¹, 马金亮¹

1. 油气资源与工程全国重点实验室, 中国石油大学(北京) 北京 102249;
2. 中国石油集团长城钻探工程有限公司北京 100101

通讯作者: 黄中伟,男,1972年4月生,2006年获中国石油大学(华东)博士学位,现为中国石油大学(北京)石油工程学院教授,主要从事高压水射流技术在石油工程中的理论与应用研究工作。Email:huangzw@cup.edu.cn
作者简介:武晓光,男,1991年12月生,2020年获中国石油大学(北京)博士学位,现为中国石油大学(北京)碳中和示范性能源学院特任岗位副教授,主要从事新型射流钻完井和非常规油气储层改造理论与技术研究工作。Email:wuxg@cup.edu.cn
基金资助:
国家自然科学基金青年科学基金项目(No.52204019)、国家自然科学基金重点国际(地区)合作项目(No.52020105001)、国家自然科学基金青年科学基金重大项目(No.52192624)和中国石油大学(北京)前瞻导向项目(2462022QZDX005)资助。

Abstract

Abstract: Midium-high mature continental shale oil is a major substituted field in oil and gas exploration and development, but facing some challenges such as multi-lithology interaction and low degree of longitudinal reformation. How to fully activate longitudinal production zone is the key to achieve volume fracturing and obtain high and stable production of shale oil. For this reason, a novel idea of cross-layer fracturing in radial wells was proposed, which aims to guide longitudinal multi-layer fracture initiation by penetrating the interlayer and lithologic interface through radial borehole, thus solving the problem of limited fracture height. In order to determine the feasibility of above idea, a true tri-axial cross-layer fracturing experiment was conducted. By means of CT scanning and 3D fracture reconstruction technology, the paper clarifies the characteristics of fracture initiation and penetration induced by radial well, and analyzes the influence law of vertical stress difference, displacement and radial well length on the fracture initiation and penetration. The results indicate that the radial well has the ability of guiding fracture propagation and promoting longitudinal fracture penetration, which can effectively reduce the difficulty of fracture penetration through layers and increase the longitudinal fracture propagation height. With the increase of vertical stress difference, the effect of fracture propagation induced by radial well is enhanced, and the fracture initiation changes from cross-layer cracking mode to simultaneous multi-layer cracking mode, crossing the lithology interface. The fracture is dominated by low-strength layers under low displacement, and increasing displacement is conducive to longitudinal fracture propagation across layers. With the increase of radial length, the wellbore has the enhanced ability of inducing fractures to cross the layer interface. The key findings are expected to provide solutions to the limitation of longitudinal fracture propagation height in continental shale oil reservoirs.

Key words: shale oil, radial well, cross-layer fracturing, fracture propagation, multi-lithology layer

摘要： 中-高成熟陆相页岩油是中国油气勘探开发的重大接替领域,但存在多岩性交互、纵向改造程度低的难题。充分动用纵向产层是实现页岩油体积压裂、获得高产与稳产的关键。为此,提出了径向井穿层压裂新思路,旨在通过径向井眼穿透隔夹层和岩性界面,引导纵向多层系起裂,解决缝高延伸受限的难题。为探究方法的可行性,开展了真三轴径向井穿层压裂实验,借助CT扫描和裂缝三维重构技术,阐明了径向井引导裂缝穿层起裂及扩展特征,分析了垂向应力差异、压裂液排量、径向井长度等参数对径向井诱导裂缝穿层的影响规律。研究结果表明:径向井具有导向裂缝扩展和诱导裂缝纵向穿层的特性,可有效降低裂缝穿层难度,提升纵向扩展高度;垂向应力差异增加,径向井诱导裂缝穿层效果增强,裂缝由跨层起裂向各层同时起裂转变,突破岩性界面;小排量下裂缝以低强度岩层跨层起裂为主,提高排量有助于裂缝纵向穿层扩展;径向井长度增加,诱导裂缝穿层能力增强。研究结果有望为中国陆相页岩油储层纵向改造高度受限的难题提供解决思路。

关键词: 页岩油, 径向井, 穿层压裂, 裂缝扩展, 多岩性层

CLC Number:

TE357

Wu Xiaoguang, Long Tengda, Huang Zhongwei, Gao Wenlong, Li Gensheng, Xie Zixiao, Yang Rui, Lu Jingsong, Ma Jinliang. Characteristics of fracture propagation in radial wellbores of shale oil reservoirs with multiple lithologic layers[J]. Acta Petrolei Sinica, 2024, 45(3): 559-573,585.

武晓光, 龙腾达, 黄中伟, 高文龙, 李根生, 谢紫霄, 杨芮, 鲁京松, 马金亮. 页岩油多岩性交互储层径向井穿层压裂裂缝扩展特征[J]. 石油学报, 2024, 45(3): 559-573,585.

References

[1] 金之钧,王冠平,刘光祥,等. 中国陆相页岩油研究进展与关键科学问题[J].石油学报,2021,42(7):821-835.
JIN Zhijun,WANG Guanping,LIU Guangxiang,et al.Research progress and key scientific issues of continental shale oil in China[J].Acta Petrolei Sinica,2021,42(7):821-835.
[2] 孙龙德,刘合,朱如凯,等.中国页岩油革命值得关注的十个问题[J].石油学报,2023,44(12):2007-2019.
SUN Longde,LIU He,ZHU Rukai,et al.Ten noteworthy issues on shale oil revolution in China[J]. Acta Petrolei Sinica,2023,44(12):2007-2019.
[3] 胡素云,赵文智,侯连华,等.中国陆相页岩油发展潜力与技术对策[J].石油勘探与开发,2020,47(4):819-828.
HU Suyun,ZHAO Wenzhi,HOU Lianhua,et al.Development potential and technical strategy of continental shale oil in China[J].Petroleum Exploration and Development, 2020,47(4):819-828.
[4] 翁定为,雷群,管保山,等.中美页岩油气储层改造技术进展及发展方向[J].石油学报,2023,44(12):2297-2307.
WENG Dingwei,LEI Qun,GUAN Baoshan,et al.Progress and development directions of reservoir stimulation techniques for shale oil and gas in China and the United States[J].Acta Petrolei Sinica,2023,44(12):2297-2307.
[5] 雷群,翁定为,熊生春,等.中国石油页岩油储集层改造技术进展及发展方向[J].石油勘探与开发,2021,48(5):1035-1042.
LEI Qun,WENG Dingwei,XIONG Shengchun,et al.Progress and development directions of shale oil reservoir stimulation technology of China National Petroleum Corporation[J].Petroleum Exploration and Development,2021,48(5):1035-1042.
[6] 刘合,匡立春,李国欣,等.中国陆相页岩油完井方式优选的思考与建议[J].石油学报,2020,41(4):489-496.
LIU He,KUANG Lichun,LI Guoxin,et al.Considerations and suggestions on optimizing completion methods of continental shale oil in China[J].Acta Petrolei Sinica,2020,41(4):489-496.

[7] 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.
[8] 朱相羽,段宏亮,孙雅雄.苏北盆地高邮凹陷古近系陆相页岩油勘探突破及意义[J].石油学报,2023,44(8):1206-1221.
ZHU Xiangyu,DUAN Hongliang,SUN Yaxiong.Breakthrough and significance of Paleogene continental shale oil exploration in Gaoyou sag,Subei Basin[J].Acta Petrolei Sinica,2023,44(8):1206-1221.
[9] 闫林,陈福利,王志平,等.我国页岩油有效开发面临的挑战及关键技术研究[J].石油钻探技术,2020,48(3):63-69.
YAN Lin,CHEN Fuli,WANG Zhiping,et al.Challenges and technical countermeasures for effective development of shale oil in China[J].Petroleum Drilling Techniques,2020,48(3):63-69.
[10] 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].Oil Drilling & Production Technology,2019,41(2):212-223.
[11] 张士诚,李四海,邹雨时,等.页岩油水平井多段压裂裂缝高度扩展试验[J].中国石油大学学报(自然科学版),2021,45(1):77-86.
Z HANG Shicheng,LI Sihai,ZOU Yushi,et al.Experimental study on fracture height propagation during multi-stage fracturing of horizontal wells in shale oil reservoirs[J].Journal of China University of Petroleum(Edition of Natural Science),2021,45(1):77-86.
[12] 侯冰,武安安,常智,等.页岩油储层多甜点压裂裂缝垂向扩展试验研究[J].岩土工程学报,2021,43(7):1322-1330.
HOU Bing,WU An’an,CHANG Zhi,et al.Experimental study on vertical propagation of fractures of multi-sweet of spots shale oil reservoir[J].Chinese Journal of Geotechnical Engineering,2021,43(7):1322-1330.
[13] 谭鹏.多岩性组合层状储层水力裂缝垂向扩展的力学行为研究[D].北京:中国石油大学(北京),2019.
TAN Peng.Mechanical behavior of hydraulic fracture vertical propagation for layered formation with multi-lithology combination[D].Beijing:China University of Petroleum,2019.
[14] 夏磊.层状岩体力学特性及水力压裂应力阴影效应研究[D].武汉:武汉大学,2019.
XIA Lei.Research on mechanical characteristics and stress shadow effect in hydraulic fracturing of layered rock masses[D].Wuhan:Wuhan University,2019.
[15] 王燚钊,侯冰,王栋,等.页岩油多储集层穿层压裂缝高扩展特征[J].石油勘探与开发,2021,48(2):402-410.
WANG Yizhao,HOU Bing,WANG Dong,et al.Features of fracture height propagation in cross-layer fracturing of shale oil reservoirs[J]. Petroleum Exploration and Development,2021,48(2):402-410.
[16] EL RABAA W.Hydraulic fracture propagation in the presence of stress variation[R].SPE-16898-MS,1987.
[17] 孟勇,贾庆升,张潦源,等.东营凹陷页岩油储层层间干扰及裂缝扩展规律研究[J].石油钻探技术,2021,49(4):130-138.
MENG Yong,JIA Qingsheng,ZHANG Liaoyuan,et al.Research on interlayer interference and the fracture propagation law of shale oil reservoirs in the Dongying sag[J].Petroleum Drilling Techniques,2021,49(4):130-138.
[18] 侯冰,常智,武安安,等.吉木萨尔凹陷页岩油密切割压裂多簇裂缝竞争扩展模拟[J].石油学报,2022,43(1):75-90.
HOU Bing,CHANG Zhi,WU An’an,et al.Simulation of competitive propagation of multi-fractures on shale oil reservoir multi-clustered fracturing in Jimsar sag[J].Acta Petrolei Sinica,2022,43(1):75-90.
[19] 王永辉,刘玉章,丁云宏,等.页岩层理对压裂裂缝垂向扩展机制研究[J].钻采工艺,2017,40(5):39-42.
WANG Yonghui,LIU Yuzhang,DING Yunhong,et al.Research on influence of shale bedding to vertical extension mechanism of hydraulic fracture[J].Drilling & Production Technology,2017,40(5):39-42.
[20] 宋晨鹏,卢义玉,贾云中,等.煤岩交界面对水力压裂裂缝扩展的影响[J].东北大学学报(自然科学版),2014,35(9):1340-1345.
SONG Chenpeng,LU Yiyu,JIA Yunzhong,et al.Effect of coal-rock interface on hydraulic fracturing propagation[J].Journal of Northeastern University(Natural Science),2014,35(9):1340-1345.
[21] TANG Jizhou,WU Kan,ZENG Bo,et al.Investigate effects of weak bedding interfaces on fracture geometry in unconventional reservoirs[J].Journal of Petroleum Science and Engineering,2018,165:992-1009.
[22] BALCH R S,RUAN Tongjun,SAVAGE M,et al.Field testing and validation of a mechanical alternative to radial jet drilling for improving recovery in mature oil wells[R].SPE-180410-MS,2016.
[23] 李根生,黄中伟,李敬彬.水力喷射径向水平井钻井关键技术研究[J].石油钻探技术,2017,45(2):1-9.
LI Gensheng,HUANG Zhongwei,LI Jingbin.Study of the key techniques in radial jet drilling[J].Petroleum Drilling Techniques,2017,45(2):1-9.
[24] 李根生,黄中伟,田守嶒,等.水力喷射径向钻孔与压裂一体化方法:CN103883293B[P].2017-02-15.
LI Gensheng,HUANG Zhongwei,TIAN Shouceng,et al.Integrated method of hydraulic jet radial drilling and fracturing:CN103883293B [P].2017-02-15.
[25] 曲占庆,王涛,郭天魁,等.平面多径向井水射流辅助压裂构造多缝机理[J].断块油气田,2019,26(3):404-408.
QU Zhanqing,WANG Tao,GUO Tiankui,et al.Mechanism of realizing multiple fractures by water jet assisted fracturing for planar multi-radial wells[J].Fault-Block Oil & Gas Field,2019,26(3):404-408.
[26] 田雨,曲占庆,郭天魁,等.径向井引导水力压裂裂缝定向扩展技术[J].科学技术与工程,2017,17(20):154-159.
TIAN Yu,QU Zhanqing,GUO Tiankui,et al.Theoretical research on radial wells orientating hydraulically created fracture directional extended[J].Science Technology and Engineering,2017,17(20):154-159.
[27] 田守嶒,黄中伟,李根生,等.径向井复合脉动水力压裂煤层气储层解堵和增产室内实验[J].天然气工业,2018,38(9):88-94.
TIAN Shouceng,HUANG Zhongwei,LI Gensheng,et al.Laboratory experiments on blockage removing and stimulation of CBM reservoirs by composite pulsating fracturing of radial horizontal wells[J].Natural Gas Industry,2018,38(9):88-94.
[28] 胡胜勇.水力喷射钻孔定向压裂技术试验研究[J].钻采工艺,2014,37(5):59-62.
HU Shengyong.Experimental study of hydraulic jet drilling and directional fracturing technology[J].Drilling & Production Technology,2014,37(5):59-62.
[29] 刘普国.水力喷射钻孔后多裂缝压裂技术研究[J].化学工程与装备,2015(12):144-146.
LIU Puguo.Research on multi-fracture fracturing technology after hydraulic jet drilling[J].Chemical Engineering & Equipment,2015(12):144-146.
[30] ABASS H H,SOLIMAN M Y,TAHINI A M,et al.Oriented fracturing:a new technique to hydraulically fracture an openhole horizontal well[R].SPE-124483-MS,2009.
[31] 曲占庆,李小龙,李建雄,等.基于扩展有限元法的多径向井压裂裂缝形态[J].中国石油大学学报(自然科学版),2018,42(1):73-81.
QU Zhanqing,LI Xiaolong,LI Jianxiong,et al.Crack morphology of multiple radial well fracturing based on extended finite element method[J].Journal of China University of Petroleum(Edition of Natural Science),2018,42(1):73-81.
[32] 陈宾,展勤建.立井快速揭煤中径向井压裂增透技术[J].煤矿安全,2017,48(11):76-79.
CHEN Bin,ZHAN Qinjian.Fracturing and permeability increasing technology for radial well in rapid unconvering coal of shaft[J].Safety in Coal Mines,2017,48(11):76-79.
[33] 崔传智,孙莲婷,单高军,等.多层合采油井的多措施同步优化方法[J].石油学报,2023,44(8):1356-1364.
CUI Chuanzhi,SUN Lianting,SHAN Gaojun,et al.Multi-measure simultaneous optimization method for multi-layer commingled producing wells[J].Acta Petrolei Sinica,2023,44(8):1356-1364.
[34] 李振华,陈占军,李向阳.鄂尔多斯盆地庆阳地区长7页岩岩石力学参数研究[J].陇东学院学报,2021,32(2):45-48.
LI Zhenhua,CHEN Zhanjun,LI Xiangyang.Rock mechanics parameters of Chang 7 shale in Qingyang area in Ordos Basin[J].Journal of Longdong University,2021,32(2):45-48.
[35] 高杰,侯冰,谭鹏,等.砂煤互层水力裂缝穿层扩展机理[J].煤炭学报,2017,42(S2):428-433.
GAO Jie,HOU Bing,TAN Peng,et al.Propagation mechanism of hydraulic fracture in sand coal interbedding[J].Journal of China Coal Society,2017,42(S2):428-433.
[36] 柳贡慧,庞飞,陈治喜.水力压裂模拟实验中的相似准则[J].石油大学学报(自然科学版),2000,24(5):45-48.
LIU Gonghui,PANG Fei,CHEN Zhixi.Development of scaling laws for hydraulic fracture simulation tests[J].Journal of China University of Petroleum,China(Edition of Natural Science),2000,24(5):45-48.
[37] 王天宇,郭肇权,李根生,等.径向井立体压裂裂缝扩展数值模拟[J].石油勘探与开发,2023,50(2):1-11.
WANG Tianyu,GUO Zhaoquan,LI Gensheng,et al.Numerical simulation of three-dimensional fracturing fracture propagation in radial wells[J].Petroleum Exploration and Development,2023,50(3):613-623.
[38] 周健,陈勉,金衍,等.裂缝性储层水力裂缝扩展机理试验研究[J].石油学报,2007,28(5):109-113.
ZHOU Jian,CHEN Mian,JIN Yan,et al.Experimental study on propagation mechanism of hydraulic fracture in naturally fractured reservoir[J].Acta Petrolei Sinica,2007,28(5):109-113.
[39] 邹雨时,石善志,张士诚,等.薄互层型页岩油储集层水力裂缝形态与支撑剂分布特征[J].石油勘探与开发,2022,49(5):1025-1032.
ZOU Yushi,SHI Shanzhi,ZHANG Shicheng,et al.Hydraulic fracture geometry and proppant distribution in thin interbedded shale oil reservoirs[J].Petroleum Exploration and Development,2022,49(5):1025-1032.
[40] 李小龙,李建雄,王涛,等.基于数值模拟的径向井压裂裂缝形态[J].大庆石油地质与开发,2018,37(3):90-95.
LI Xiaolong,LI Jianxiong,WANG Tao,et al.Crack morphology of the radial well fracturing based on the numerical simulation[J].Petroleum Geology and Oilfield Development in Daqing,2018,37(3):90-95.
[41] 褚春波,郭权,黄小云,等.有限元分析径向水力压裂裂缝扩展影响因素[J].油气井测试,2018,27(2):59-66.
CHU Chunbo,GUO Quan,HUANG Xiaoyun,et al.Finite-element analysis on influencing factors for propagation of fractures induced in radial jet hydraulic fracturing[J].Well Testing,2018,27(2):59-66.
[42] 张守仁,胡彦林,李贵川,等.煤层气短水平段径向钻井压裂技术及应用[J].煤炭科学技术,2016,44(5):50-53.
ZHANG Shouren,HU Yanlin,LI Guichuan,et al.Short horizontal sectional radial drilling and fracturing technology of coalbed methane and application[J].Coal Science and Technology,2016,44(5):50-53.
[43] 周雷,李立,夏彬伟,等.含径向水力割缝钻孔导向压裂裂缝形态及影响要素[J].煤炭学报,2022,47(4):1559-1570.
ZHOU Lei,LI Li,XIA Binwei,et al.Fracture pattern and influencing factors of guided hydraulic fracturing with radial slot and well borehole[J].Journal of China Coal Society,2022,47(4):1559-1570.
[44] 李文,王广宏,欧聪,等.不同布孔方式下梳状定向长钻孔水力压裂数值模拟及工程应用[J].煤矿安全,2021,52(5):72-77.
LI Wen,WANG Guanghong,OU Cong,et al.Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes[J].Safety in Coal Mines,2021,52(5):72-77.
[45] GUO Tiankui,RUI Zhenhua,QU Zhanqing,et al.Experimental study of directional propagation of hydraulic fracture guided by multi-radial slim holes[J].Journal of Petroleum Science and Engineering,2018,166:592-601.
[46] 刘晓强,曲占庆,郭天魁,等.径向井辅助水力压裂引导裂缝扩展数值模拟[J].特种油气藏,2018,25(5):156-162.
LIU Xiaoqiang,QU Zhanqing,GUO Tiankui,et al.Numerical simulation of fracture propagation oriented by radial well assisted hydraulic fracturing[J].Special Oil and Gas Reservoirs,2018,25(5):156-162.
[47] 富向,刘洪磊,杨天鸿,等.穿煤层钻孔定向水压致裂的数值仿真[J].东北大学学报(自然科学版),2011,32(10):1480-1483.
FU Xiang,LIU Honglei,YANG Tianhong,et al.Simulating directional hydraulic fracturing through coal seam drilling hole[J].Journal of Northeastern University(Natural Science),2011,32(10):1480-1483.
[48] BENTLEY P J,JIANG Hui,MEGORDEN M.Improving hydraulic fracture geometry by directional drilling in a coal seam gas formation[R]. SPE-167053-MS,2013.
[49] 谭鹏,金衍,侯冰,等.煤岩定向井水力裂缝起裂及非平面扩展实验[J].石油勘探与开发,2017,44(3):439-445.
TAN Peng,JIN Yan,HOU Bing,et al.Experimental investigation on fracture initiation and non-planar propagation of hydraulic fractures in coal seams[J].Petroleum Exploration and Development,2017,44(3):439-445.

Characteristics of fracture propagation in radial wellbores of shale oil reservoirs with multiple lithologic layers

页岩油多岩性交互储层径向井穿层压裂裂缝扩展特征

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