Mechanisms and Inhibition of Borehole Instability Encountered in Drilling the Shiqianfeng Formation – Shihezi Formation in the East of Yan’an Gas Field

WANG Bo; WU Jinqiao; WANG Mengyu; LI Wei; YANG Chao; MA Zhenfeng; YANG Xianlun; LI Cheng

doi:10.12358/j.issn.1001-5620.2024.01.008

Volume 41 Issue 1

Feb. 2024

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WANG Bo, WU Jinqiao, WANG Mengyu, et al.Mechanisms and inhibition of borehole instability encountered in drilling the Shiqianfeng formation – Shihezi formation in the east of Yan’an gas field[J]. Drilling Fluid & Completion Fluid，2024, 41（1）：76-83 doi: 10.12358/j.issn.1001-5620.2024.01.008

Citation:

WANG Bo, WU Jinqiao, WANG Mengyu, et al.Mechanisms and inhibition of borehole instability encountered in drilling the Shiqianfeng formation – Shihezi formation in the east of Yan’an gas field[J]. Drilling Fluid & Completion Fluid，2024, 41（1）：76-83 doi: 10.12358/j.issn.1001-5620.2024.01.008

Citation:

WANG Bo, WU Jinqiao, WANG Mengyu, et al.Mechanisms and inhibition of borehole instability encountered in drilling the Shiqianfeng formation – Shihezi formation in the east of Yan’an gas field[J]. Drilling Fluid & Completion Fluid，2024, 41（1）：76-83 doi: 10.12358/j.issn.1001-5620.2024.01.008

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Mechanisms and Inhibition of Borehole Instability Encountered in Drilling the Shiqianfeng Formation – Shihezi Formation in the East of Yan’an Gas Field

doi: 10.12358/j.issn.1001-5620.2024.01.008

WANG Bo^{1, 2
,},
WU Jinqiao^{1, 2},
WANG Mengyu³,
LI Wei^{2, 4},
YANG Chao^{2, 4},
MA Zhenfeng^{1, 2},
YANG Xianlun^{1, 2},
LI Cheng^{1, 2}

1.
Shaanxi Yanchang Petroleum (Group) Co., LTD. Natural Gas Research Institute Branch，Xi 'an, Shaanxi 710069
2.
Shaanxi Key Laboratory of Continental Shale Gas Accumulation and Development Xi 'an, Shaanxi 710069
3.
Chuanqing Drilling & Exploration Engineering Company Limited Changqing Downhole Technical Operation Company， Xi 'an, Shaanxi 710018
4.
Research Institute of Shaanxi Yanchang Petroleum (Group) Co., LTD， Xi 'an, Shaanxi 710075

Received Date: 2023-10-15
Rev Recd Date: 2023-11-29
Publish Date: 2024-01-30

Abstract

Abstract

To find out the inherent causes related to the borehole wall collapse in drilling the Shiqianfeng formation – Shihezi formation in the east of the Yan’an gas field, samples were taken from the rig-sites and were studied for their mineral composition, physical-chemical features and mechanical characteristics. Based on the study a measure dealing with the borehole wall collapse, which is to inhibit the self-imbibition of liquid into the formation rocks, is presented. From the study it was found that the Shiqianfeng formation – Shihezi formation in the east of the Yan’an gas field contain 15.44% – 47.52% clays, and are a formation with weak expandability and moderate dispersibility. The rock samples are developed with micro-fractures and micro-fissures which are the main causes for the invasion of liquids and hence the collapse of borehole walls. The percent cuttings recovery of the samples tested on hot roller tester in distilled water is less than 67.2%, and the linear percent expansion of the cores made of the samples in distilled water is less than 8.14%. The Shihezi formation shows stronger dispersibility and stronger hydrophilicity than those of the Shiqianfeng formation. After soaking in a drilling fluid, the triaxial compressive strength of the Shiqianfeng sample is reduced from 186.04 MPa to 98.13 MPa, and the triaxial compressive strength of the Shihezi sample is reduced from 90.09 MPa to 49.21 MPa, indicating that the invasion of the drilling fluid into the rocks along the micro-fractures and micro-fissures causes the strengths of the formations to reduce. Using 0.3% self-imbibition inhibitor ZXS-1, the degrees of saturation of water phase and oil phase in the rock samples can be reduced from 72.6% and 86.6% to 4.7% and 33.5%, respectively, and the ZXS-1 additive can form a dense layer of adsorption around the surfaces of the rocks, thereby turning the wettability of the rock surfaces from hydrophilicity to hydrophobicity. By inhibiting the water imbibition into the rocks, the micro-fractures and micro-fissures are plugged and the liquid can no longer invade into the rocks, and the borehole walls are thus stabilized.
- Borehole wall destabilization,
- Physical-chemical characteristics,
- Triaxial compressive strength,
- Inhibit rock from water imbibition,
- Yan’an gas field

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References(25)

References

[1]	邹才能,薛华庆,熊波,等. “碳中和” 的内涵、创新与愿景[J]. 天然气工业,2021,41(8):46-57. ZOU Caineng, XUE Huaqing, XIONG Bo, et al. Connotation, innovation and vision of "carbon neutral"[J]. Natural Gas Industry, 2021, 41(8):46-57.
[2]	谢和平,任世华,谢亚辰,等. 碳中和目标下煤炭行业发展机遇[J]. 煤炭学报,2021,46(7):2197-2211. doi: 10.13225/j.cnki.jccs.2021.0973 XIE Heping, REN Shihua, XIE Yachen, et al. Development opportunities of the coal industry towards the goal of carbon neutrality[J]. Journal of China Coal Society, 2021, 46(7):2197-2211. doi: 10.13225/j.cnki.jccs.2021.0973
[3]	邹才能,何东博,贾成业,等. 世界能源转型内涵、路径及其对碳中和的意义[J]. 石油学报,2021,42(2):233-247. ZOU Caineng, HE Dongbo, JIA Chengye, et al. Connotation and pathway of world energy transition and its signiﬁcance for carbon neutral[J]. Acta Petrolei Sinica, 2021, 42(2):233-247.
[4]	王震,孔盈皓,李伟. “碳中和” 背景下中国天然气产业发展综述[J]. 天然气工业,2021,41(8):194-202. doi: 10.3787/j.issn.1000-0976.2021.08.018 WANG Zhen, KONG Yinghao, LI Wei. Review on the development of China's natural gas industry in the background of "carbon neutrality"[J]. Natural Gas Industry, 2021, 41(8):194-202. doi: 10.3787/j.issn.1000-0976.2021.08.018
[5]	王香增,乔向阳,张磊,等. 鄂尔多斯盆地东南部致密砂岩气勘探开发关键技术创新及规模实践[J]. 天然气工业,2022,42(1):102-113. doi: 10.3787/j.issn.1000-0976.2022.01.010 WANG Xiangzeng, QIAO Xiangyang, ZHANG Lei, et al. Innovation and scale practice of key technologies for the exploration and development of tight sandstone gas reservoirs in Yan'an gas field of southeastern Ordos basin[J]. Natural Gas Industry, 2022, 42(1):102-113. doi: 10.3787/j.issn.1000-0976.2022.01.010
[6]	郑伟娟,徐同台,董晓军,等. 延长气田石千峰组与石盒子组井壁失稳机理的研讨[J]. 钻井液与完井液,2015,32(1):34-37,41. doi: 10.3969/j.issn.1001-5620.2015.01.009 ZHENG Weijuan, XU Tongtai, DONG Xiaojun, et al. Study on wellbore instability mechanism of Shiqianfeng formation and Shihezi formation in Yanchang gas field[J]. Drilling Fluid & Completion Fluid, 2015, 32(1):34-37,41. doi: 10.3969/j.issn.1001-5620.2015.01.009
[7]	李健鹰. 泥浆胶体化学[M]. 东营: 石油大学出版社, 1988. LI Jianying. Mud colloidal chemistry[M]. Dongying: China University of Petroleum Press, 1988.
[8]	格里姆. 粘土矿物学[M]. 许冀泉, 译. 北京: 地质出版社, 1960. GRIM R E. Clay mineralogy[M]. translated by XU Jiquan. Beijing: Geology Press, 1960.
[9]	刘亦凡,鲁盈,李炎军,等. 黏土-水悬浮体系热滚老化后的分散性[J]. 科学技术与工程,2019,19(35):148-152. doi: 10.3969/j.issn.1671-1815.2019.35.021 LIU Yifan, LU Ying, LI Yanjun, et al. Dispersion behavior of clay-water suspension system after heat rolling aging[J]. Science Technology and Engineering, 2019, 19(35):148-152. doi: 10.3969/j.issn.1671-1815.2019.35.021
[10]	王森,刘洪,陈乔,等. 渝东南下志留统龙马溪组页岩理化性能实验[J]. 石油学报,2014,35(2):245-252. doi: 10.7623/syxb201402004 WANG Sen, LIU Hong, CHEN Qiao, et al. Physical and chemical properties of shale in the Lower Silurian Longmaxi formation, southeast Chongqing[J]. Acta Petrolei Sinica, 2014, 35(2):245-252. doi: 10.7623/syxb201402004
[11]	王波,孙金声,申峰,等. 陆相页岩气水平井段井壁失稳机理及水基钻井液对策[J]. 天然气工业,2020,40(4):104-111. doi: 10.3787/j.issn.1000-0976.2020.04.013 WANG Bo, SUN Jinsheng, SHEN Feng, et al. Mechanism of wellbore instability in continental shale gas horizontal sections and its water-based drilling fluid countermeasures[J]. Natural Gas Industry, 2020, 40(4):104-111. doi: 10.3787/j.issn.1000-0976.2020.04.013
[12]	林海,邓金根,谢涛,等. 渤海油田渤中区域中深部泥页岩地层井壁稳定性[J]. 科学技术与工程,2021,21(11):4409-4417. doi: 10.3969/j.issn.1671-1815.2021.11.016 LIN Hai, DENG Jingen, XIE Tao, et al. Wellbore instability of shale formation in Bozhong area of Bohai oil field[J]. Science Technology and Engineering, 2021, 21(11):4409-4417. doi: 10.3969/j.issn.1671-1815.2021.11.016
[13]	金玉, 李玉姣, 王秀艳, 等. SY/T 5613-2016. 钻井液测试泥页岩理化性能试验方法[S]. 北京: 中国标准出版社, 2016. JIN Yu, LI Yujiao, WANG Xiuyan, et al. SY/T 5613-2016. Testing of drilling fluids-test method of physical and chemical properties for shale[S]. Beijing: Standards Press of China, 2016.
[14]	陈文可,郑和,龚厚平,等. 中江区块沙溪庙组井壁失稳机理及烷基糖苷防塌钻井液[J]. 钻井液与完井液,2023,40(4):438-445. CHEN Wenke, ZHENG He, GONG Houping, et al. Mechanisms of borehole instability of the Shaximiao formation in block Zhongjiang and the anti-collapse alkyl glycoside drilling fluid[J]. Drilling Fluid & Completion Fluid, 2023, 40(4):438-445.
[15]	刘可成,周俊,崔鑫,等. 阜康凹陷井壁失稳机理与封堵防塌油基钻井液体系[J]. 钻井液与完井液,2022,39(4):451-458. LIU Kecheng, ZHOU Jun, CUI Xin, et al. Mechanisms of borehole wall instability in Fukang sag block and an oil based drilling fluid with plugging and inhibitive capacities[J]. Drilling Fluid & Completion Fluid, 2022, 39(4):451-458.
[16]	姚前元, 曾骏, 刘文华. DZ/T 0276.6-2015. 岩石物理力学性质试验规程第6部分: 岩石硬度试验[S]. 北京: 中国标准出版社, 2015. YAO Qianyuan, ZENG Jun, LIU Wenhua. DZ/T 0276.6-2015. Regulation for testing the physical and mechanical properties of rock. Part 6: test for determining the hardness of rock[S]. Beijing: Standards Press of China, 2015.
[17]	刘奎,王宴滨,高德利,等. 页岩气水平井压裂对井筒完整性的影响[J]. 石油学报,2016,37(3):406-414. doi: 10.7623/syxb201603013 LIU Kui, WANG Yanbin, GAO Deli, et al. Influence of fracturing on wellbore integrity in horizontal shale gas wells[J]. Acta Petrolei Sinica, 2016, 37(3):406-414. doi: 10.7623/syxb201603013
[18]	王波. 页岩微纳米孔缝封堵技术研究[D]. 成都: 西南石油大学, 2015. WANG Bo. Research on micro-nano pore sealing technology of shale[D]. Chengdu: Southwest Petroleum University, 2015.
[19]	邓嘉丁. 延长气田刘家沟—双石井段井壁稳定及钻井液体系研究[D]. 成都: 西南石油大学, 2019. DENG Jiading. Research on wellbore stability and drilling fluid system of Liujiagou-Shuangshi well section in Yanchang gas field[D]. Chengdu: Southwest Petroleum University, 2019.
[20]	邱正松,徐加放,吕开河,等. “多元协同” 稳定井壁新理论[J]. 石油学报,2007,28(2):117-119. doi: 10.7623/syxb200702024 QIU Zhengsong, XU Jiafang, LYU Kaihe, et al. A multivariate cooperation principle for well-bore stabilization[J]. Acta Petrolei Sinica, 2007, 28(2):117-119. doi: 10.7623/syxb200702024
[21]	蔚宝华,王治中,郭彬. 泥页岩地层井壁失稳理论研究及其进展[J]. 钻采工艺,2007,30(3):16-20. doi: 10.3969/j.issn.1006-768X.2007.03.006 YU Baohua, WANG Zhizhong, GUO Bin. Borehole unstability theory of shale and its research progress[J]. Drilling & Production Technology, 2007, 30(3):16-20. doi: 10.3969/j.issn.1006-768X.2007.03.006
[22]	HE G Y, TSAO H K, SHENG Y J. Imbibition dynamics in an open-channel capillary with holes[J]. Journal of Molecular Liquids, 2022, 349:118117. doi: 10.1016/j.molliq.2021.118117
[23]	HUANG X B, SUN J S, HE L, et al. Fabrication of a hydrophobic hierarchical surface on shale using modified Nano-SiO2 for strengthening the wellbore wall in drilling engineering[J]. Engineering, 2022, 11(4):101-110.
[24]	金家锋. 气湿性纳米SiO2颗粒的研制及性能研究[D]. 青岛: 中国石油大学(华东), 2017. JIN Jiafeng. Preparation and evaluation of gas-wetting nanoparticles[D]. Qingdao: China University of Petroleum (East China), 2017.
[25]	王彦玲,金家锋,董红岩,等. 用于解水锁的气润湿反转剂的合成与性能评价[J]. 西安石油大学学报(自然科学版),2015,30(5):85-90. WANG Yanling, JIN Jiafeng, DONG Hongyan, et al. Synthesis and performance evaluation of wettability reversal agent for removing water lock effect[J]. Journal of Xi'an Shiyou University (Natural Science), 2015, 30(5):85-90.

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Mechanisms and Inhibition of Borehole Instability Encountered in Drilling the Shiqianfeng Formation – Shihezi Formation in the East of Yan’an Gas Field

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Mechanisms and Inhibition of Borehole Instability Encountered in Drilling the Shiqianfeng Formation – Shihezi Formation in the East of Yan’an Gas Field

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