压裂完井工具高压模拟井筒壁厚的研究

Research on High Pressure Simulation Wellbore Wall Thickness with Crushing Completion Tools

摘要: 介绍了压裂完井工具高压模拟井筒试验装置的组成和作用。建立了高压模拟井筒的三维仿真模型，并对模拟井筒上的测压孔进行了处理。利用ANSYS软件，对不同壁厚的模拟井筒进行了数值模拟分析。仿真结果表明，当模拟井筒承受105 MPa内压时，测压孔处屈服应力最大，且模拟井筒材料选用35CrMo，壁厚为40 mm时，内径121 mm的模拟井筒可满足设计要求。

Abstract: Composition and function of high pressure simulation wellbore experimental equipment with crushing com- pletion tools are introduced. A three-dimensional simulation model of high pressure simulation wellbore is established and the pressure tapping hole is also processed. By means of ANSYS software, the numerical simulations of simulation wellbore with different wall thicknesses are carried out. The simulation results show that the yield stress at pressure tapping hole is maximal when the simulation wellbore bears 105 MPa pressure. For 35CrMo material, the simulation wellbore with the internal diameter 121 mm can meet the design requirements, and its wall thickness is 40 mm.