石油钻采工艺Issue(4)：78-81,4.
水平井封隔器卡瓦的有限元分析及结构改进
Finite element analysis and structure improvements of packer slip in horizontal wells
摘要
Abstract
Packer slips prone to fracture under tremendous pressure during drilling,it will affect the sealing performance of the packer directly, and affect the process of mining and safety in production wells. The slip was analysised using the ifnite element analy-sis software.When the applied load is 140 kN, the slip’s maximum stress is 230.11 MPa, which exceeding the maximum compressive strength of this material.The slip packer test mode was undergo a fracturing test, slip fractured when the test pressure is 186.33 kN, the compressive strength is measured 233 MPa. Slip structure was designed, the spacing sizes of slip tooth were 15 mm, 25 mm and 30 mm. According to the results of ifnite element analysis, when the spacing size of slip tooth is 30 mm, the distribution of the slip’s stress and strain tends to uniform. When 240 kN load is applied, the maximum stress exceeds the maximum compressive strength of slip’s material, and the slip’s maximum stress is 230.66 MPa, the maximum deformation is 0.058 mm,and provides the slip structure size is reasonable.关键词
封隔器卡瓦/有限元分析/压裂试验/卡瓦牙间距/载荷-应力/变形曲线Key words
packer slip/ifnite element analysis/fracturing test/slip tooth spacing/load and stress, deformation curve分类
能源科技引用本文复制引用
王志坚,邓卫东,林忠超,尚晓峰,王洋..水平井封隔器卡瓦的有限元分析及结构改进[J].石油钻采工艺,2013,(4):78-81,4.基金项目
中国石油天然气集团公司项目“深层火山岩气藏裸眼水平井分段压裂工具研制”（编号2008C-2801-02）资助。 （）
