期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：2
页码：022097
DOI：10.1088/1755-1315/170/2/022097
语种：English
出版社：IOP Publishing
摘要：Coalbed gas is a kind of non-conventional energy with non-pollution and high-quality. High pressure water jet technology has many advantages in coalbed gas drilling drainage, due to no heat effect, high flexibility, and high surface quality. To reduce the energy consumption of this technology, especially for the hard coal rock, the water jet parameters optimization is studied in this paper. Based on an established three-dimensional damage numerical model and the orthogonal design tests, it analyzes the influence characteristic of different water jet parameters on coal bed gas drilling drainage and obtains the optimal water jet parameters combination finally. The results could improve the efficiency of high pressure water jet drilling drainage.
