Contact Forms of Casing with Centralizer and Its Effect on Friction

doi:10.11885/j.issn.1674-5086.2019.04.08.02

Abstract

Abstract: During the running casing operation, the casing will be bent and contact the well wall due to the influence of gravity and well trajectory. Therefore, an additional friction is generated, which affects running casing when it is too large. In particular, a large number of centralizers are used to ensure displacement efficiency and cementing quality in horizontal wells, which brings greater difficulties to running casing operations due to the increase of friction coefficient. Aiming to this problem, the paper first points out the three contact forms of the casing and the well wall:free state, point contact and line contact. It is also points out that the friction is different under different contact form. Then, the casing tortuous equation and contact from judgment model are built. According to the model segmentation calculation method, the friction of the casing under different contact modes is accurately calculated. The field example analysis shows that the method can accurately predict the friction and has a good guiding significance for calculating the friction.

Key words: horizontal well, running casings, contact form, centralizer, frictional resistance

CLC Number:

TE256⁺.2

HU Xihui, LI Wei, XU Bihua, MA Jinglun, YUAN Bin. Contact Forms of Casing with Centralizer and Its Effect on Friction[J]. 西南石油大学学报(自然科学版), 2020, 42(2): 158-165.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2019.04.08.02

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2020/V42/I2/158

References

[1] ZHAO Chaojie, LI Jun, LIU Gonghui, et al. Analysis of the influence of cement sheath failure on sustained casing pressure in shale gas wells[J]. Journal of Natural Gas Science and Engineering, 2019, 66:244-254. doi:10.1016/j.jngse.2019.04.003
[2] WANG Chaowen, JIA Chunsheng, PENG Xiaolong, et al. Effects of wellbore interference on concurrent gas production from multi-layered tight sands:A case study in eastern Ordos Basin, China[J]. Journal of Petroleum Science and Engineering, 2019, 179:707-715. doi:10.1016/j.petrol.2019.04.110
[3] CAI Laixing, XIAO Guolin, LU Shuangfang, et al. Spatial-temporal coupling between high-quality source rocks and reservoirs for tight sandstone oil and gas accumulations in the Songliao Basin, China[J]. International Journal of Mining Science and Technology, 2019, 29(3):387-397. doi:10.1016/j.ijmst.2019.03.006
[4] 李勇明,陈希,江有适,等. 页岩储层压裂水平井气水两相产能分析[J]. 油气地质与采收率, 2019, 26(3):117-122. doi:10.13673/j.cnki.cn37-1359/te.2019.03.016 LI Yongming, CHEN Xi, JIANG Youshi, et al. Gas-water two-phase productivity analysis for the fractured horizontal well in shale reservoirs[J]. Petroleum Geology and Recovery Efficiency, 2019, 26(3):117-122. doi:10.13673/j.cnki.cn37-1359/te.2019.03.016
[5] NIE Zhen, ZHANG Zhenyou, LUO Huihong, et al. Key technologies for directional well drilling in high-pressure anhydrite salt layers[J]. Natural Gas Industry B, 2018, 5(6):598-605. doi:10.1016/j.ngib.2018.11.008
[6] GUO Jing, FAN Song, LIU Tao, et al. Exploration and practice of integrated control technology for tubing and sucker rod lopsided wearing in directional well[J]. IOP Conference Series:Earth and Environmental Science, 2018, 208(1):26-28. doi:10.1088/1755-1315/208/1/0120-21
[7] 张珍. ZX105井卡套管事故原因分析及处理工艺[J]. 钻井液与完井液, 2018, 35(3):84-88. doi:10.3969/j.issn.1001-5620.2018.03.014 ZHANG Zhen. Analyses of the cause of casing sticking in Well ZX105 and the techniques of freeing the sticking[J]. Drilling Fluid & Completion Fluid, 2018, 35(3):84-88. doi:10.3969/j.issn.1001-5620.2018.03.014
[8] 陈颖超. 基于有限元分析的水平井套管柱下入过程模拟[J]. 承德石油高等专科学校学报, 2019, 21(1):26-29, 44. doi:10.3969/j.issn.1008-9446.2019.01.008 CHEN Yingchao. Simulation of casing string down process in horizontal wells based on finite element analysis[J]. Journal of Chengde Petroleum College, 2019, 21(1):26-29, 44. doi:10.3969/j.issn.1008-9446.2019.01.008
[9] 杨广国,陶谦,刘伟,等. 页岩气井固井套管居中与下入能力研究[J]. 石油机械, 2012, 40(10):26-30. doi:10.16082/j.cnki.issn.1001-4578.2012.10.010 YANG Guangguo, TAO Qian, LIU Wei, et al. Research on the running and centralization of casing in shale gas well[J]. China Petroleum Machinery, 2012, 40(10):26-30. doi:10.16082/j.cnki.issn.1001-4578.2012.10.010
[10] 魏殿举. 川西地区中浅水平井钻井难点与对策[J]. 钻采工艺, 2015, 38(2):10.107. doi:10.3969/J.ISSN.1006-768X.2015.02.31
[11] 王秀文,刘巨保,黄金波,等. 固井过程套管串屈曲变形分析[J]. 石油矿场机械, 2011, 40(4):17-21. doi:10.3969/j.issn.1001-3482.2011.04.005 WANG Xiuwen, LIU Jubao, HUANG Jinbo, et al. Analysis of buckling deformation about casing in cementing[J]. Oil Field Equipment, 2011, 40(4):17-21. doi:10.3969/j.issn.1001-3482.2011.04.005
[12] 李子丰. 油气井杆管柱力学研究进展与争论[J]. 石油学报,2016,37(4):531-556. doi:10.7623/syxb201604013 LI Zifeng. Research advances and debates on tubular mechanics in oil and gas wells[J]. Acta Petrolei Sinica, 2016, 37(4):531-556. doi:10.7623/syxb201604013
[13] 牛成成,郑德帅,杨顺辉,等. 大位移井套管下入摩阻预测新方法[J]. 科学技术与工程, 2014, 14(6):130-134. doi:10.3969/j.issn.1671-1815.2014.06.029 NIU Chengcheng, ZHENG Deshuai, YANG Shunhui, et al. The new drag prediction method of casing string in extended reach wells[J]. Science Technology and Engineering, 2014, 14(6):130-134. doi:10.3969/j.issn.1671-1815.2014.06.029
[14] 刘晓坡,廖前华,李刚. 软件预测摩阻-随钻校正摩阻系数方法及其在BZ34-1-D6大位移井钻井中的应用[J]. 中国海上油气, 2010, 22(5):320-322, 348. doi:10.3969/j.issn.1673-1506.2010.05.009 LIU Xiaopo, LIAO Qianhua, LI Gang. The method of friction prediction with software before drilling and friction factor correction while drilling and its application in extended reach Well BZ34-1-D6[J]. China Offshore Oil and Gas, 2010, 22(5):320-322, 348. doi:10.3969/j.issn.1673-1506.2010.05.009
[15] 黄志强. 定向井下套管摩阻数值计算及其应用[J]. 石油地质与工程, 2009, 23(4):79-81. doi:10.3969/j.issn.1673-8217.2009.04.027 HUANG Zhiqiang. Computation and application of friction number of casing running in directional well[J]. Petroleum Geology and Engineering, 2009, 23(4):79-81. doi:10.3969/j.issn.1673-8217.2009.04.027
[16] 付建红,龚龙祥,胡顺渠,等. 基于ANSYS的水平井下套管摩阻分析计算[J]. 石油钻采工艺, 2007, 29(4):32-35. doi:10.3969/j.issn.1000-7393.2007.04.009 FU Jianhong, GONG Longxiang, HU Shunqu, et al. Calculation of frictional drag of casing running in horizontal well based on ANSYS[J]. Oil Drilling & Production Technology, 2007, 29(4):32-35. doi:10.3969/j.issn.1000-7393.2007.04.009
[17] 王治国,徐璧华,陈超,等. 复杂井眼条件下扶正器对套管下入摩阻的影响研究[J]. 钻采工艺, 2014, 37(1):27-30. doi:10.3969/J.ISSN.1006-768X.2014.01.09 WANG Zhiguo, XU Bihua, CHEN Chao, et al. Centralizer's influences on casing friction under the condition of complicated borehole[J]. Drilling & Production Technology, 2014, 37(1):27-30. doi:10.3969/J.ISSN.1006-768X.2014.01.09
[18] 张海山,张凯敏,宫吉泽,等. 不同类型扶正器对水平井下套管摩阻的影响研究[J]. 钻采工艺, 2014, 37(3):22-25. doi:10.3969/J.ISSN.1006-768X.2014.03.07 ZHANG Haishan, ZHANG Kaimin, GONG Jize, et al. Study on influence of different types of centralizer on running casing friction in horizional well[J]. Drilling & Production Technology, 2014, 37(3):22-25. doi:10.3969/J.ISSN.1006-768X.2014.03.07
[19] 游尧,陈英明,姜韡,等. 考虑扶正器影响的套管摩阻计算方法研究[J]. 长江大学学报(自科版), 2014, 11(1):71-73. YOU Yao, CHEN Yingming, JIANG Wei, et al. Study on casing friction calculation method considering the effect of centralizer[J]. Journal of Yangtze University (Natural Science Edition), 2014, 11(1):71-73.
[20] 付建红,黄贵生,杨志彬,等. 水平井套管扶正器合理安放位置计算[J]. 西南石油大学学报(自然科学版),2008,30(6):89-91,172. doi:10.3863/j.issn.1000-2634.2008.06.021 FU Jianhong, HUANG Guisheng, YANG Zhibin, et al. Optimal spacing for casing centralizers in horizontal well[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2008, 30(6):89-91, 172. doi:10.3863/j.issn.1000-2634.2008.06.021
[21] 朱炳坤,刘江,窦益华. 造斜井段中套管柱挠曲变形分析[J]. 钻采工艺, 2016, 39(1):96-98. doi:10.3969/J.ISSN.1006-768X.2016.01.28 ZHU Bingkun, LIU Jiang, DOU Yihua. The deflection analysis of casing string in making inclination segment[J]. Drilling & Production Technology, 2016, 39(1):96-98. doi:10.3969/J.ISSN.1006-768X.2016.01.28