Abstract

Pipe sticking is one of technical challenges in the drilling industry that has a major impact on the drilling efficiency and well costs. In order to eliminate deep water stuck pipe hazards, a new type of the jet cutter cartridge is designed. The main structure of the cartridge is a linear shaped charge including hydrogen-based emulsion explosives and copper tubes. During the detonation process of emulsion explosives, the copper tubes form several linear jet cutters along the ring direction to penetrate the stuck drill pipe. Experimental results indicate that the properties of hydrogen-based emulsion explosive meet the requirement to the explosive for the environment of the stuck point. This annular jet cutter cartridge is successfully applied in a copper mine to solve a stuck pipe incident.

中文翻译：

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新型喷射切割器滤芯，可消除深水卡住的管道危险

摘要

管卡住是钻探行业中的技术挑战之一，对钻探效率和钻井成本产生重大影响。为了消除深水卡在管道中的危害，设计了一种新型的喷射切割器刀架。弹药筒的主要结构是线性装药，包括氢基乳化炸药和铜管。在乳化炸药的爆炸过程中，铜管沿着环的方向形成多个线性射流切割器，以穿透被卡住的钻杆。实验结果表明，氢基乳化炸药的性能符合炸药对粘点环境的要求。该环形射流刀架已成功应用于铜矿中，以解决管道卡死的情况。