Stress Distribution Analysis of the Casings Under Suspended Packer Slips

HE Xia; LI Ming; WANG Guo-rong; ZHANG Min

doi:10.21656/1000-0887.370271

Volume 38 Issue 9

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HE Xia, LI Ming, WANG Guo-rong, ZHANG Min. Stress Distribution Analysis of the Casings Under Suspended Packer Slips[J]. Applied Mathematics and Mechanics, 2017, 38(9): 1021-1028. doi: 10.21656/1000-0887.370271

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Stress Distribution Analysis of the Casings Under Suspended Packer Slips

doi: 10.21656/1000-0887.370271

School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, P.R.China

Received Date: 2016-09-05
Rev Recd Date: 2016-10-07
Publish Date: 2017-09-15

Abstract

Abstract

The slips in a suspended packer are very important components to ensure success of the horizontal well reconstruction technology. They can support and fasten the packer and lock the rubber when they are anchored. But the casing is liable to failure under the effect of slips since it’s a thinwall cylinder, so it is very important to conduct mechanical analysis of casings under the effect of slips. The stress distribution of the casing under actions of slips was determined with an established mathematical model. The results show that the setting force of the packer increases the hoop stress of the casing and the suspended weight magnifies the axial stress, which jointly make the casing stress much higher and even cause failure of the casing. The theoretical model provides some useful references for evaluation of the casing stress state under the effect of packer slips for the horizontal well reconstruction technology.
- suspended packer,
- slip,
- casing,
- mechanical analysis

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References(16)

References

[1]	李高升. 封隔器卡瓦的强度分析[D]. 硕士学位论文. 青岛: 中国石油大学(华东), 2007.(LI Gao-sheng. Analysis of the strength of the slip of packers[D]. Master Thesis. Qingdao: China University of Petroleum, 2007.(in Chinese))
[2]	刘禹铭, 郝宙正, 马英明, 等. 微牙痕卡瓦在封隔器中的应用研究[J]. 石油机械, 2016,44(8): 85-88.(LIU Yu-ming, HAO Zhou-zheng, MA Ying-ming, et al. Application of micro teeth mark slips in the packer[J]. China Petroleum Machinery,2016,44(8): 85-88.(in Chinese))
[3]	Macdonald K A, Bjune J V. Failure analysis of drillstrings[J]. Engineering Failure Analysis,2007,14(8): 1641-1666.
[4]	Shahani A R, Sharifi S M H. Contact stress analysis and calculation of stress concentration factors at the tool joint of a drill pipe[J].Materials & Design,2009,30(9): 3615-3621.
[5]	崔孝秉, 张宏, 韩新利, 等. 卡瓦内悬挂管柱弹性承载能力与计算[J]. 石油大学学报(自然科学版), 1999,23(1): 62-65.(CUI Xiao-bing, ZHANG Hong, HAN Xin-li, et al. Analysis on the elastic load bearing capacity of tubes inside slips[J]. Journal of the University of Petroleum(Edition of Natural Science),1999,23(1): 62-65.(in Chinese))
[6]	崔孝秉, 张宏. 卡瓦内悬挂管柱承载能力分析[J]. 石油学报, 2000,21(1): 87-90.(CUI Xiao-bing, ZHANG Hong. Analysis of the load bearing capacity of tubes inside slips[J]. Acta Petrolei Sinica,2000,21(1): 87-90.(in Chinese))
[7]	周三平. 卡瓦内悬挂管柱的极限承载能力[J]. 西安石油学院学报(自然科学版), 2001,16(2): 50-54.(ZHOU San-ping. Calculation of the limited load-bearing capacity of the pipe string inside a slip[J]. Journal of Xi’an Petroleum Institute(Natural Science Edition),2001,16(2): 50-54.(in Chinese))
[8]	方智贤, 朱海燕, 陈传永. 卡在卡瓦内管柱力学模型的探讨[J]. 石油天然气学报, 2009,31(4): 381-383.(FANG Zhi-xian, ZHU Hai-yan, CHEN Chuan-yong. The discussion of mechanical model of the slip in the string[J]. Journal of Oil and Gas Technology,2009,31(4): 381-383.(in Chinese))
[9]	仝少凯, 朱炳坤, 曹银萍, 等. RTTS封隔器卡瓦力学性能分析[J]. 石油机械, 2014,42(2): 53-57.(TONG Shao-kai, ZHU Bing-kun, CAO Yin-ping, et al. Analysis of the mechanical property of RTTS packer slip[J]. China Petroleum Machinery,2014,42(2): 53-57.(in Chinese))
[10]	陈若铭, 陈森强, 王新东, 等. 套管头卡瓦力学分析[J]. 石油矿场机械, 2011,40(5): 10-13.(CHEN Ruo-min, CHEN Sen-qiang, WANG Xin-dong, et al. Mechanics analysis of casing head slip[J]. Oil Field Equipment,2011,40(5): 10-13.(in Chinese))
[11]	缪建, 朱海燕, 刘清友. 钻井连续循环系统卡瓦极限卡紧力分析[J]. 西安石油大学学报(自然科学版), 2010,25(1): 84-86.(MIAO Jian, ZHU Hai-yan, LIU Qing-you. Analysis of the limit clam ping force of the slip in contiguous circulation drilling system [J]. Journal of Xi’an Shiyou University(Natural Science Edition),2010,25(1): 84-86.(in Chinese))
[12]	徐芝纶. 弹性力学[M]. 第4版. 北京: 高等教育出版社, 2006.(XU Zhi-lun. Elastic Mechanics [M]. 4th ed. Beijing: Higher Education Press, 2006.(in Chinese))
[13]	ZHANG Lei, ZHANG Lai-bin, LIANG Wei. Casing safety evaluation for setting liner hanger[J]. Journal of Natural Gas Science and Engineering,2014,19(8): 58-61.
[14]	杨耀乾. 薄壳理论[M]. 北京: 中国铁道出版社, 1984.(YANG Yao-qian. Thin Shell Theory [M]. Beijing: China Railway Publishing House, 1984.(in Chinese))
[15]	尹春松, 杨洋. 考虑非局部剪切效应的碳纳米管弯曲特性研究[J]. 应用数学和力学, 2015,36(6): 600-606.(YIN Chun-song, YANG Yang. Shear deformable bending of carbon nanotubes based on a new analytical nonlocal Timoshenko beam model[J]. Applied Mathematics and Mechanics,2015,36(6): 600-606.(in Chinese))
[16]	祝效华, 李金和, 童华. 含卡瓦作业损伤钻柱的适用性评价研究[J]. 机械工程学报, 2012,48(16): 97-101.(ZHU Xiao-hua, LI Jin-he, TONG Hua. Study on serviceability evaluation of drill-string with slip bite-mark[J]. Journal of Mechanical Engineering,2012,48(16): 97-101.(in Chinese))