气井完井管柱安全状态评估系统设计与应用

高温高压气井在生产和井下作业过程中,由于温度和压力的变化容易造成管柱变形,影响到管柱安全,因而需要开展天然气井完井管柱安全状况评估。文中在分析不同工况前后天然气井温度和压力变化的基础上,提出了相应的管柱变形计算和强度校核方法,并进行了实例计算,取得了较好效果。利用该方法,还可以帮助新井设计出安全的完井管柱,指导完井工艺的选择。

Design and application of security assessment system for gas well completion string

The completion string of high temperature and high pressure gas well is deformed easily due to the temperature and pressure changes during production and borehole operation, which affects the security of the completion string.So it should be evaluated.Based on the analysis of the temperature and pressure changes of natural gas well before and after different operating conditions, this paper has proposed the corresponding string distortion computation and the intensity examination method, and has carried on ...