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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
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cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Analysis on Finite Element Simulation of Casing Stress under Upper Packer Water Injection Condition

Author of the article:Zhang Guangming, Cao Chang, Wang Jun, Mei Chao, Sun Chao, Luo Junlan

Author's Workplace：1.Petroleum Engineering College of Yangtze University; 2.SINOPEC Northwest Oilfield Company; 3.PetroChina Jilin Oilfield Company Oil Production Technology Research Institute

Key Words：Casing failure; Equivalent stress; Finite element

Abstract：In order to define the effect of the upper packer water injection on casing deformation, prevent water well flooding pressure from continuously rising after separated layer water injection in some blocks of Qian’an Oilfield and control serious casing deformation, conducted is study on casing deformation resulted from the upper packer water injection mode. Applied is the finite element software to conduct simulation analysis on equivalent stress of the casing produced in the working conditions of upper packer water injection and obtained is the distribution of corresponding equivalent stress in the casing. Proposed are performance requirements of the casing during upper packer water injection and considerations in water injection operation according to the calculation results.