Structure Optimum of Packer Slips Based on Test and Numerical Simulation

Authors

Xiaohua Zhu, 1. Mechatronic Engineering College of Southwest Petroleum University, Chengdu 610500, China;;
Shengqi Chao, 1. Mechatronic Engineering College of Southwest Petroleum University, Chengdu 610500, China;;3. Engineering technology of the CNOOC energy development Company, Tianjin 300000, China;
Zulin Liu, 2. Zhongyuan Oilfield Down Hole Service Company, Puyang 457162, China;;
Chen Bo, 2. Zhongyuan Oilfield Down Hole Service Company, Puyang 457162, China;;
Haibing Tang, 2. Zhongyuan Oilfield Down Hole Service Company, Puyang 457162, China;;
Kaifeng Liang, 2. Zhongyuan Oilfield Down Hole Service Company, Puyang 457162, China;;

Abstract

Abstract: The permanent packer is an essential tool for segment fracturing during shale gas exploitation. The structure of the slips directly affects its setting ability. For Y440 type packer, setting and sealing tests were carried out, and the results show that the packer exists slip during sealing operation, which may exacerbates slip and even slip off under the condition of shock and vibration in a wellbore. Finite element models were established based on nonlinear explicit dynamic analysis method. According to the comprehensive evaluation on the stress value, plastic deformation and the slippage of slips with the different tooth types, the results indicate that when the teeth dip angle is 20 degrees, vertex angle is 75 degrees, teeth width is 8mm and inner cone angle is 15 degrees is the relative optimal structure. A scientific basis for the design of packer slips was provided.

Recommended Citation

Zhu, Xiaohua; Chao, Shengqi; Liu, Zulin; Bo, Chen; Tang, Haibing; and Liang, Kaifeng (2020) "Structure Optimum of Packer Slips Based on Test and Numerical Simulation," Journal of System Simulation: Vol. 28: Iss. 11, Article 12.
DOI: 10.16182/j.issn1004731x.joss.201611012
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss11/12

First Page

2729

Revised Date

2015-06-09

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201611012

Last Page

2735

CLC

TP391.9

Recommended Citation

Zhu Xiaohua, Chao Shengqi, Liu Zulin, Chen Bo, Tang Haibing, Liang Kaifeng. Structure Optimum of Packer Slips Based on Test and Numerical Simulation[J]. Journal of System Simulation, 2016, 28(11): 2729-2735.

DOI

10.16182/j.issn1004731x.joss.201611012