Abstract： In order to speed up the pace of exploration in Dangshan coalfield, part of the design drilling holes in the exploration stage were drilled by non-coring drilling method. Based on many years of exploration experience, I studied the design of non-coring section of drilling in Dangshan coalfield exploration in northern Anhui. The research showed that when designing non-coring drilling holes, it was necessary to be familiar with the stratigraphic sequence and coal seam occurrence state in the area, the spacing between important marker layers and coal seams, faults, overburden thickness and a series of problems, and then refer to the information in the two drilling holes before and after the exploration line where the design drilling hole was located, as well as the information of adjacent drilling holes on the left and right exploration lines, so as to accurately design the non-coring section.
郝琴华. 煤田勘探阶段设计钻孔非取芯段设计注意事项研究[J]. 煤炭与化工, 2023, 46(10): 69-72.
Hao Qinhua. Study on the design attention issues of non-coring section of design drilling hole in coalfield exploration stage. CCI, 2023, 46(10): 69-72.
