摘要
高压注水可提高采收率,但易引起套管损坏。通过ANSYS建立套管、水泥环、地层应力的三维有限元分析模型,对计算结果进行分析,研究了套管管体与射孔段有效应力与注水压力的变化规律,得到了多项式回归方程,及注水温度与压力共同作用对套管、地层应力的影响。
High pressure water injection easily causes casing damage. In this paper, three-dimensional finite element analysis model of casing, cement and formation stress was established by ANSYS. And the calculation results were analyzed as well as the variation law of injection pressure and effective stress of the casing body and perforated intervals.The polynomial regression equation was obtained as well as effect of water injection temperature and pressure on the casing and formation stress.
出处
《辽宁化工》
CAS
2014年第1期104-105,108,共3页
Liaoning Chemical Industry
关键词
高压注水
套管
地层应力
数值模拟
high pressure water injection
casing
formation stress
numerical simulation
