高压模拟井筒的壁厚的理论计算

Theoretical Calculation of High Pressure Simulation Wellbore’s Wall Thickness

介绍了压裂完井高温高压模拟井筒的组成。选取了高温高压模拟井筒的材质。在此基础上,理论计算了两种不同内径的模拟井筒所需的合理壁厚。在设计温度下,分别获得了不同内径的模拟井筒的爆破安全系数。计算结果表明,两模拟井筒在压力140 MPa、温度200℃条件下,爆破安全系数均大于3,符合TSG R0002-2005 超高压容器安全技术监察规程要求。

Composition of high temperature and pressure simulation wellbore with crushing completion tools are intro-duced. The material of high temperature and pressure simulation wellbore is chosen. Based on it, the reasonable wall thicknesses of simulation wellbore with two different internal diameters are calculated theoretically. Under the condi-tion of design temperature, the blasting safety coefficients of simulation wellbore with two different internal diameters are also obtained respectively. The results show that the blasting safety coefficients of simulation wellbore with two different internal diameters are more than 3 under the condition of 140 MPa, 200 temperature, which accord with TSG R0002-2005 super high pressure vessel safety technology supervision regulation requirements.