摘要
将喷嘴出口压力大于140MPa定义为超高压水射流。介绍了早期超高压水射流钻孔试验及其应用,综述了超高压水射流辅助深井钻孔技术的发展状况,概括了超高压水射流辅助破岩机理和岩石性质与水射流结构参数对破岩效果的影响规律。在此基础上,对今后超高压水射流辅助破岩技术的研究提出了一些建议。
The paper introduces early experiments and applications of ultra-high pressure water jet(UHPWJ) drilling technology, reviews the developing stages of UHPWJ assisted drilling, summarizes the mechanics of UHPWJ assisted rock breaking, the influential factors of rock characteristics and water jets parameters on efficiencies of breaking rock. On the basis of above descriptions, some future research suggestions about UHPWJ assisted rock fracture are given, including rock breaking simulation, cavitating rock mechanism, rock dynamic constructive models under water jet impact, ambient pressure influence on submerged water jet impacting rock, and so on.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第A02期2583-2587,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家杰出青年科学基金(50125413)
CNPC钻井工程实验室课题(2001J4-03)资助项目
关键词
钻井工程
超高压
水射流
钻孔
岩石破碎
drilling engineering
ultra-high pressure
water jet
drilling
rock breaking
