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
Citation: 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

Stress Distribution Analysis of the Casings Under Suspended Packer Slips

doi: 10.21656/1000-0887.370271
  • Received Date: 2016-09-05
  • Rev Recd Date: 2016-10-07
  • Publish Date: 2017-09-15
  • 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.
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