赵庄二号井顺层钻孔抽采半径测试分析_中国煤炭行业知识服务平台

赵庄二号井顺层钻孔抽采半径测试分析

Title

Testing and Analysis of the Bedding Drilling and Extraction Radius of Zhaozhuang No.2 Well
作者

刘亮亮任建平
Author

Liu Liangliang;Ren Jianping
单位

晋能控股装备制造集团赵庄二号井
Organization

Jinneng Holdings Equipment Manufacturing Group Zhaozhuang No.2 Well
摘要

为了掌握顺层钻孔瓦斯抽采半径,为赵庄二号井顺层钻孔抽采设计提供依据,以赵庄二号井2311工作面为地质背景,在分析瓦斯赋存规律的基础上,确定了钻孔布置参数,并采用流量统计法对钻孔抽采流量进行了现场实测。对比分析实测结果得到,赵庄二号井3#煤层抽采时间90d时,其有效抽采半径为3m,而当抽采时间为180d时,其有效抽采半径为3.40m。
Abstract

In order to grasp the gas extraction radius of the bedding drilling and provide a basis for the design of the bedding drilling and extraction of Zhaozhuang No.2 Well, taking the 2311 working face of Zhaozhuang No.2 Well as the geological background, based on the analysis of the gas occurrence law, the drilling layout parameters are determined, and the flow rate of the drilling and extraction is measured on-site using the flow rate statistics method. By comparing and analyzing the measured results, it can be concluded that when the extraction time of the 3# coal seam in Zhaozhuang No.2 Well is 90 days, its effective extraction radius is 3 m, while when the extraction time is 180 days, its effective extraction radius is 3.40 m.
关键词

抽采钻孔抽采半径流量统计法抽采时间
KeyWords

extraction drilling; extraction radius; flow rate statistics method; extraction time
DOI

10.3969/j.issn.1005-2801.2023.11.022