Mechanical Analysis of the Down-Hole String in a Deep Well  

作　　者：何玉发 刘清友 朱筱岚 

机构地区：[1]Deepwater Engineering Key Laboratory,CNOOC Research Institute [2]College of Mechanical and Electric Engineering,Southwest Petroleum University [3]Operations Engineering and Optimization,Conoco Phillips China Inc.

出　　处：《Journal of Southwest Jiaotong University(English Edition)》2010年第4期314-319,共6页西南交通大学学报（英文版）

基　　金：The National Natural Science Foundation of China (Nos. 50874096 and 50474040)

摘　　要：In a deep well,under high pressure and temperature,the force,deformation,and movement of the downhole string are very complicated. In this paper,based on the analysis of the working environment and load properties of the down-hole string in deep wells,the factors of high temperature,high pressure,and the complex structure of wells have been taken into consideration. The loads of the down-hole string,stability,back buckle configuration,dynamic characteristics,mechanical strength,and deformation have been systematically studied. On this basis,mechanical models of a down-hole string under different conditions have been established and software for aiding analysis has been developed. By using this software,deep well strings under different construction parameters can be simulated and analyzed,providing a theoretical basis and method for down-hole string assembly,as well as string down-hole construction and operation.In a deep well,under high pressure and temperature,the force,deformation,and movement of the downhole string are very complicated. In this paper,based on the analysis of the working environment and load properties of the down-hole string in deep wells,the factors of high temperature,high pressure,and the complex structure of wells have been taken into consideration. The loads of the down-hole string,stability,back buckle configuration,dynamic characteristics,mechanical strength,and deformation have been systematically studied. On this basis,mechanical models of a down-hole string under different conditions have been established and software for aiding analysis has been developed. By using this software,deep well strings under different construction parameters can be simulated and analyzed,providing a theoretical basis and method for down-hole string assembly,as well as string down-hole construction and operation.

关 键 词：Down-hole string Mechanical behavior Optimization design Software development 

分 类 号：P634[天文地球—地质矿产勘探]