Research progress on wellbore instability mechanics in weak side of deep stratified reservoirs
-
摘要: 深部储层油气藏资源储量丰富，由于复杂的地质因素、工程因素制约着深部油气藏安全高效开采。井壁失稳导致的卡钻、井塌、井漏等一系列问题给钻井工程造成巨大损失。本文在分析井壁失稳力学机理上，着重论述力学及其多场耦合下对井壁失稳影响机制，最后提出促进深部含层理弱面钻井理论技术的建议。研究发现：层理弱面发育、高温高压环境、地层倾角改变、岩石水化作用等因素是导致岩石力学强度弱化、深部储层井壁失稳的主要影响因素。不同倾角下的岩石力学强度存在巨大差异，含层理弱面岩石更容易发生水化膨胀，需合理优化钻井工程参数以及钻井液密度。本文较为系统地对井壁岩石力学及相关方面的研究进行了归纳，可深入了解深部储层井壁稳定性力学影响机制，为实际生产与工程实际提供参考。Abstract: Deep reservoirs with abundant oil and gas resources are difficult to exploit safely and efficiently due to complex geological conditions and engineering factors. The problems of stuck drilling, well collapse, and well leakage caused by unstable wellbore walls have led to huge losses to drilling engineering. Therefore, this paper analyzes the mechanical mechanism of unstable wellbore walls and focuses on the influence mechanism of mechanics and multi-field coupling on unstable wellbore walls. Finally, it proposes suggestions for promoting the theoretical and technical development of drilling in weak side of deep stratified formations. The study found that the development of weak side,high temperature and high pressure environment, changes in rock layer inclination, and hydration of rocks are the main factors that weaken the mechanical strength of rocks and cause instability of the wellbore walls in deep reservoirs. The mechanical strength of rocks under different inclinations is significantly different, and the weak side of stratified rocks is more likely to swell due to hydration, which requires the rational optimization of drilling engineering parameters and drilling fluid density. This paper systematically summarizes the research on the rock mechanics and related aspects,deeply understands the mechanical influence mechanism of wellbore wall stability in deep reservoirs, and provides reference for actual production and engineering practice.
-
-
[1] 何登发,贾承造,赵文智,等.中国超深层油气勘探领域研究进展与关键问题[J].石油勘探与开发,2023,50(6):1162-1172.
HE Dengfa, JIA Chengzao, ZHAO Wenzhi, et al. Research progress and key issues of ultra-deep oil and gas exploration in China[J]. Petroleum Exploration and Development, 2023,50(6):1162-1172.
[2] 邓虎,孟英峰.泥页岩稳定性的化学与力学耦合研究综述[J].石油勘探与开发,2003,30(1):109-111.
DENG Hu, MENG Yingfeng. A discussion on shale stability coupling with mechanics and chemistry[J]. Petroleum Exploration and Development, 2003,30(1):109-111.
[3] 邓虎,孟英峰.泥页岩稳定性的化学与力学耦合研究综述[J].石油勘探与开发,2003,30(1):109-111.DENG Hu, MENG Yingfeng. A discussion on shale stability coupling with mechanics and chemistry[J]. Petroleum Exploration and Development, 2003,30(1):109-111..
[4] 张建国.气体钻井井壁稳定性问题研究[J].化学工程与装备,2008(4):51-54.
ZHANG Jianguo. Research on the stability of gas drilling wellbore[J]. Chemical Engineering & Equipment, 2008(4):51-54.
[5] 刘占魁,田林海,吴波,等.沙湾凹陷西斜坡砂砾岩地层井壁失稳机理及复杂处理[J].西部探矿工程,2021,33(6):51-53.
LIU Zhankui, TIAN Linhai, WU Bo, et al. Mechanism and complex treatment of wellbore instability in sandstone and gravel formations on the western slope of Shawan Depression[J].West-China Exploration Engineering, 2021,33(6):51-53.
[6] 金军斌,欧彪,张杜杰,等.深部裂缝性碳酸盐岩储层井壁稳定技术研究现状及展望[J].长江大学学报(自然科学版),2021,18(6):47-54.
JIN Junbin, OU Biao, ZHANG Dujie, et al. Research status and prospect of borehole stability technology in deep fractured carbonate reservoirs[J]. Journal of Yangtze University(Natural Science Edition), 2021,18(6):47-54.
[7] 范宇,王佳珺,刘厚彬,等.泸州区块全井段地层力学性能及井壁稳定性[J].科学技术与工程,2020,20(16):6433-6439.
FAN Yu, WANG Jiajun, LIU Houbin, et al. Formation mechanical properties and wellbore stability of the whole well section in Luzhou block[J]. Science Technology and Engineering,2020,20(16):6433-6439.
[8] Zhang J C. Borehole stability analysis accounting for anisotropies in drilling to weak bedding planes[J]. International Journal of Rock Mechanics and Mining Sciences, 2013,60:160-170.
[9] 贾爱林,闫海军,唐海发,等.中国深层、超深层气藏开发关键技术与对策建议[J].天然气工业,2024,44(1):119-127.
JIA Ailin, YAN Haijun, TANG Haifa, et al. Key technologies and countermeasures for deep and ultra-deep gas reservoir development in China[J]. Natural Gas Industry, 2024,44(1):119-127.
[10] 冯晟,宋峙潮,王沛,等.基于岩石力学参数的渤海油田A 区块井壁稳定研究[J].化学工程与装备,2023(5):144-146.
FENG Sheng, SONG Shichao, WANG Pei, et al. Research on wellbore stability in block A of bohai oilfield based on rock mechanics parameters[J]. Chemical Engineering & Equipment, 2023(5):144-146.
[11] 赵文彬.塔河油田托普台区块提速技术研究及应用[D].青岛:中国石油大学(华东),2018.ZHAO Wenbin. Research and application of drilling technology in the Tuo Putai block of Tahe oilfield[D]. Qingdao:China University of Petroleum (East China), 2018.
[12] 邓虎,贾利春.四川盆地深井超深井钻井关键技术与展望[J].天然气工业,2022,42(12):82-94.
DENG Hu, JIA Lichun. Key technologies for drilling deep and ultra-deep wells in the Sichuan Basin:Current status, challenges and prospects[J]. Natural Gas Industry, 2022,42(12):82-94.
[13] 耿建华,赵峦啸,麻纪强,等.超深碳酸盐岩油气储层岩石弹性性质高温高压超声实验研究[J].地球物理学报,2023,66(9):3959-3974.
GENG Jianhua, ZHAO Luanxiao, MA Jiqiang, et al. Hightemperature and high-pressure ultrasonic experimental studies on elastic properties of ultra-deep carbonate reservoir rocks[J].Chinese Journal of Geophysics, 2023,66(9):3959-3974.
[14] 谢玉洪,单钰铭,李绪深,等.温度、压力对莺-琼盆地储层岩石物性影响的实验研究[J].成都理工大学学报(自然科学版),2015(2):218-224.
XIE Yuhong, SHAN Yuming, LI Xushen, et al. Experimental study on effects of temperature and stress on properties of reservoir rocks in Yinggehai and Qiongdongnan basin, South China Sea[J]. Journal of Chengdu University of Technology(Science & Technology Edition), 2015(2):218-224.
[15] 杨现禹,蔡记华,蒋国盛,等.维持页岩井壁稳定的物理封堵模拟和化学抑制实验研究[J].钻探工程,2021,48(4):37-46.
YANG Xianyu, CAI Jihua, JIANG Guosheng, et al. Physical plugging simulation and chemical inhibition experiment for wellbore stability in shale[J]. Drilling Engineering, 2021,48(4):37-46.
[16] Bradley W B. Failure of inclined boreholes[J]. Journal of Energy Resources Technology, 1979,101(4):232-239.
[17] Abousleiman Y, Cui L. Poroelastic solutions in transversely isotropic media for wellbore and cylinder[J]. International Journal of Solids and Structures, 1998,35(34/35):4905-4929.
[18] 邓燕.大位移井水力压裂裂缝起裂机理研究及应用[D].成都:西南石油大学,2003.DENG Yan. Research and application of fracture initiation mechanism in hydraulic fracturing of large displacement wells[D]. Chengdu:Southwest Petroleum University, 2003.
[19] Meier T, Rybacki E, Reinicke A, et al. Influence of borehole diameter on the formation of borehole breakouts in black shale[J]. International Journal of Rock Mechanics and Mining Sciences, 2013,62:74-85.
[20] 曹文科,邓金根,谭强,等.深水钻井热交换作用下的井壁稳定性分析[J].中国安全生产科学技术,2017,13(6):53-57.
CAO Wenke, DENG Jingen, TAN Qiang, et al. Analysis on stability of borehole under the effect of heat exchange in deepwater drilling[J]. Journal of Safety Science and Technology,2017,13(6):53-57.
[21] 杨前雄,熊伟,高树生.考虑温度时碳酸盐岩地层破裂压力的确定[J].石油钻探技术,2007,35(3):12-14.
YANG Qianxiong, XIONG Wei, GAO Shusheng. Determination of carbonate formation fracture pressure considering formation temperature[J]. Petroleum Drilling Techniques, 2007,35(3):12-14.
[22] 邓金根,刘杨,蔚宝华,等.高温高压地层破裂压力预测方法[J].石油钻探技术,2009,37(5):43-46.
DENG Jingen, LIU Yang, YU Baohua, et al. Formation fracture pressure prediction method in high temperature and high pressure formations[J]. Petroleum Drilling Techniques, 2009,37(5):43-46.
[23] 安康.超深层碳酸盐岩力学实验及井壁坍塌压力研究[D].北京:中国地质大学(北京),2021.AN Kang. Mechanical experiment of ultra-deep carbonate rock and research on collapse pressure of well[D]. Beijing:China University of Geosciences(Beijing), 2021.
[24] Gentzis T, Deisman N, Chalaturnyk R J. A method to predict geomechanical properties and model well stability in horizontal boreholes[J]. International Journal of Coal Geology, 2009,78(2):149-160.
[25] 曹文科,邓金根,蔚宝华,等.页岩层理弱面对井壁坍塌影响分析[J].中国海上油气,2017,29(2):114-122.
CAO Wenke, DENG Jingen, YU Baohua, et al. Analysis on the influence of bedding shale weak planes on borehole caving[J]. China Offshore Oil and Gas, 2017,29(2):114-122.
[26] 金衍,陈勉,陈治喜,等.弱面地层的直井井壁稳定力学模型[J].钻采工艺,1999,22(3):13-14.
JIN Yan, CHEN Mian, CHEN Zhixi, et al. Mechanics model of sidewall stability of straight wells drilled through weakly consolidated formations[J]. Drilling & Production Technology,1999,22(3):13-14.
[27] 秦启荣,邓辉.裂缝对石油井壁力学稳定性影响[J].西南石油大学学报,2007,29(4):167-170.
QIN Qirong, DENG Hui. Influence of rock fractures on mechanical stability of Well-Wall[J]. Journal of Southwest Petroleum University, 2007,29(4):167-170.
[28] 马天寿,陈平.页岩层理对水平井井壁稳定的影响[J].西南石油大学学报(自然科学版),2014,36(5):97-104.
MA Tianshou, CHEN Ping. Influence of shale bedding plane on wellbore stability for horizontal wells[J]. Journal of Southwest Petroleum University(Science & Technology Edition),2014,36(5):97-104.
[29] Jaeger J C. Shear failure of anistropic rocks[J]. Geological Magazine, 1960,97(1):65-72.
[30] 蔡美峰.岩石力学与工程[M].北京:科学出版社,2002.CAI Meifeng. Rock Mechanics and Engineering[M]. Beijing:Science Press, 2002.
[31] Li C G, Li C H, Zhao R, et al. A strength criterion for rocks[J]. Mechanics of Materials, 2021,154:103721.
[32] Rafiai H. New empirical polyaxial criterion for rock strength[J]. International Journal of Rock Mechanics and Mining Sciences, 2011,48(6):922-931.
[33] 梁川,陈勉,赵飞,等.裂缝性层状富有机质页岩储层大位移井井壁稳定研究[J].钻采工艺,2015,38(2):31-35.
LIANG Chuan, CHEN Mian, ZHAO Fei, et al. Study on wellbore stability of high displacement wells in fractured layered organic rich shale reservoirs[J]. Drilling & Production Technology, 2015,38(2):31-35.
[34] 贾利春,陈杨,余晟.基于统一强度理论的水平井井壁稳定性分析[J].断块油气田,2018,25(5):639-643.
JIA Lichun, CHEN Yang, YU Sheng. Analysis of wellbore stability for horizontal wells based on unified strength theory[J]. Fault-Block Oil and Gas Field, 2018,25(5):639-643.
[35] 谭现锋,张强,战启帅,等.干热岩储层高温条件下岩石力学特性研究[J].钻探工程,2023,50(4):110-117.
TAN Xianfeng, ZHANG Qiang, ZHAN Qishuai, et al. Study on rock mechanical properties of hot-dry rock reservoir under high temperature[J]. Drilling Engineering, 2023,50(4):110-117.
[36] 陈金霞,周岩,朱宽亮,等.冀东油田东营组硬脆性泥页岩井壁稳定性分析[J].科学技术与工程,2018,18(20):109-115.
CHEN Jinxia, ZHOU Yan, ZHU Kuanliang, et al. The analyses on wellbore stability in hard brittle shale in Dongying formation of Jidong oilfield[J]. Science Technology and Engineering, 2018,18(20):109-115.
[37] Liu X J, Zeng W, Liang L X, et al. Wellbore stability analysis for horizontal wells in shale formations[J]. Journal of Natural Gas Science and Engineering, 2016,31:1-8.
[38] Yew C H, Chenevert M E, Wang C L, et al. Wellbore stress distribution produced by moisture adsorption[J]. SPE Drilling Engineering, 1990,5(4):311-316.
[39] Wen H, Chen M, Jin Y, et al. A chemo-mechanical coupling model of deviated borehole stability in hard brittle shale[J]. Petroleum Exploration and Development, 2014,41(6):817-823.
[40] 邓金根,郭东旭,周建良,等.泥页岩井壁应力的力学-化学耦合计算模式及数值求解方法[J].岩石力学与工程学报,2003,22(S1):2250-2253.
DENG Jingen, GUO Dongxu, ZHOU Jianliang, et al.Mechanics-chemistry coupling calculation model of borehole stress in shale formation and its numerical solving method[J].Chinese Journal of Rock Mechanics and Engineering, 2003,22(S1):2250-2253.
[41] 杨现禹,蔡记华,蒋国盛,等.钻井液水活度对页岩井壁稳定性影响的实验研究--以秀山龙马溪组页岩为例[J].钻探工程,2022,49(3):1-12.
YANG Xianyu, CAI Jihua, JIANG Guosheng, et al. Experimental study on the effect of water activity of drilling fluid on shale wellbore stability-Taking Xiushan Longmaxi shale as an example[J]. Drilling Engineering, 2022,49(3):1-12.
[42] 范翔宇,蒙承,张千贵,等.超深地层井壁失稳理论与控制技术研究进展[J].天然气工业,2024,44(1):159-176.
FAN Xiangyu, MENG Cheng, ZHANG Qiangui, et al. Research progress in the evaluation theory and control technology of wellbore instability in ultra-deep strata[J]. Natural Gas Industry, 2024,44(1):159-176.
[43] 张亚云,李大奇,高书阳,等.顺北油气田奥陶系破碎性地层井壁失稳影响因素分析[J].断块油气田,2022,29(2):256-260.
ZHANG Yayun, LI Daqi, GAO Shuyang, et al. Analysis on influencing factors of wellbore instability of Ordovician fractured formation in Shunbei Oil and Gas Field[J]. Fault-Block Oil and Gas Field, 2022,29(2):256-260.
[44] Tang L, Luo P Y. The effect of the thermal stress on wellbore stability[C]//Paper presented at the SPE India Oil and Gas Conference and Exhibition. New Delhi, India, 1998:SPE-39505-MS.
[45] Wang Y L, Dusseault M B. A coupled conductive-convective thermo-poroelastic solution and implications for wellbore stability[J]. Journal of Petroleum Science & Engineering, 2003,38(3/4):187-198.
[46] 张健.超深裂缝性地层井壁失稳机理研究[D].北京:中国石油大学(北京),2020.ZHANG Jian. Study on the mechanism ofwellbore instability in ultra-deep fractured formation[D]. Beijing:China University of Petroleum(Beijing), 2020.
[47] Gomar M, Goodarznia I, Shadizadeh S R. Transient thermoporoelastic finite element analysis of borehole breakouts[J]. International Journal of Rock Mechanics & Mining Sciences,2014,71:418-428.
-
计量
- 文章访问数: 91
- PDF下载数: 14
- 施引文献: 0
下载: