深孔绳索取心安全打捞器的研制与应用

Development and Application of Safe Fisher for Wire-line Coring in Deep Hole

摘要:

设计了一种可适用于深孔和干孔的绳索打捞、投放内管总成工具。介绍了深孔绳索取心安全打捞器的工作原理及结构组成；对工具内部的机械控制和井下脱卡控制原理进行了研究；介绍了打捞器井下脱卡的具体方法；最后通过野外试验证实了该打捞器可以减少处理事故的时间，性能稳定，拆装、维护方便。

Abstract:

A tool suitable to wire-line fishing in deep and dry hole and setting inner assembly was designed. The paper introduced the working principle and the structure composition of safe wire-line fisher and conveyor in deep hole. Study was made on the principle of mechanical control of inner tool and downhole releasing control, and the concrete methods of fisher downhole releasing were described. It was proved that fisher was applied with steady performance, convenient assembly and shorter time in handling accidents.