深孔保压取样球阀热-应力耦合仿真分析

王瑛俪^1,², 李小洋^2,^*, 李冰¹, 施山山², 吴纪修²

Simulation analysis of thermal-stress coupling for deep hole pressure retention sampling ball valves

WANG Yingli^1,², LI Xiaoyang², LI Bing¹, SHI Shanshan², WU Jixiu²

绳索打捞式保压取样钻具结构示意图 1.打捞组件; 2.弹卡; 3.外管; 4.扶正器; 5.保压管; 6.密封接头; 7.蓄能器; 8.温压记录仪; 9.保压球阀; 10.取心管; 11.取心钻头; 12.超前钻头