基于ANSYS绳索取心钻杆和连接接头的应力分析

Analysis on the Stress on Wire-line Core Drilling Pipe and Connection Joint Based on ANSYS

对绳索取心钻探施工的工况进行了分析,利用ANSYS软件对绳索取心钻杆以及连接接头的应力状态进行了三维模拟,提出了不同工况条件下,钻杆柱最大应力出现的位置。所得的结论对预防钻杆折断事故、优化接头螺纹设计、确定合理钻进参数有一定的参考意义。

The working situation of wire-line core drilling is analyzed and three-dimensional simulation are made on the stress states on wire-line core drilling pipe and connection joint based on ANSYS.Through the numerical simulation, the position of maximum stress on the drilling pipe in different working conditions is presented, which have certain reference value to prevent drilling pipe breaking, optimize the design of connection joint thread and determine reasonable drilling parameters.