完井管柱受力与完井施工方案制订的因素分析

摘要

Completion string will be affected inside the well by different external forces along with different working conditions .The external forces contain gravity effect ,piston effect ,spiral bend effect ,swell effect ,temperature effect and friction effect .At the same time ,stress effect on completion string will change in line with changeable completion types .To establish a safe and sound completion scheme ,it is suggested to consider all kinds of effects , make a special effort to analyze working conditions of completion string and downhole tools and determine the key point to be calculated .%完井管柱在井内随着工况的不同会受到不同外力因素的影响，主要有重力效应、活塞效应、螺旋弯曲效应、膨胀效应和温度效应等，同时，完井管柱由于完井方式的不同其效应受力也会有所变化；因此，要制订安全合理的施工方案就要充分考虑各种效应的影响，着重分析完井管柱及井下相关工具的工作状态与环境，确定需要计算的关键点。