摘要
本文对大直径全断面反循环回转钻井法的发展状况、直接影响其井底过程的钻进成孔方式,钻具结构、钻头和钻进参数等因素进行了阐述,并提出了急待研究的问题。
This paper states the development cireumstances of large diameter, whole sectioned, reverse-circulation rotary boring method. It also states the factors directly affecting the well-bottom process, such as: the mode of boring and hole-making, the structure of boring instruments, the bits and the boring parameters etc. Fiually, it presents the problems that requires a prompt study.
出处
《勘察科学技术》
1992年第3期62-64,56,共4页
Site Investigation Science and Technology
