山西阳泉区块采动井井位优选与抽采效果分析  

Optimization of Production Well Location and Analysis of Drainage Effect in Yangquan Block,Shanxi Province

作　　者：杨远江 任海勇 杨俊杰 张勇 YANG Yuanjiang;REN Haiyong;YANG Junjie;ZHANG Yong(Yangquan Blue Flame Coalbed Methane Co.,Ltd.,Jinzhong,Shanxi 045300)

机构地区：[1]漾泉蓝焰煤层气有限责任公司,山西晋中045300

出　　处：《中国煤炭地质》2024年第11期59-64,共6页Coal Geology of China

基　　金：山西省科技重大专项子课题“高产高效工作面煤层气(瓦斯)地面抽采技术研究与示范”(MO2015-02)。

摘　　要：为了降低矿区作业面上隅角瓦斯浓度,延长地面采动井使用年限,依据阳泉区块试验井排采数据以及寺家庄矿地层特性,提出了采动井采用三开井身结构和筛管完井技术。抽采效果表明:井位应优选在地应力低且处于高抽巷与低抽巷之间;钻孔所在回采面宽度与其离回风巷的距离的比值超过5的采动井排采周期更长;临近工作面回采时的地质扰动,以及地应力的提前释放,都将对采动井的开发起积极推动作用。In order to reduce the gas concentration in the upper corner of the mining area and extend the service life of the surface mining well,based on the drainage data of the Yangquan block test well and the geological characteristics of the Sijiazhuang mine,it is proposed to use a the three-section casing program and screen completion technology for the mining well.The drainage effect indicates that the well position should be preferably located between high and low drainage roadway with low stress.The ratio of the width of the mining face where the borehole is located to the distance from the ventilation roadway exceeds 5,and the mining cycle of the mining well is longer.The geological disturbance near the working face and the early release of stress will play a positive role in promoting the development of mining wells.

关 键 词：瓦斯抽采 采动井 布井优选 抽采效果 地应力 寺家庄矿区 

分 类 号：TE22[石油与天然气工程—油气井工程]