doi:10.16186/j.cnki.1673-9787.2020040005

Received:2020/04/01

Revised:2020/09/04

Published:2022/03/15

Geological characteristics of gas occurance and technical countermeasures of Wulan abandoned coal mine

WANG Bo1, ZHU Qingzhong2, LIU Wenge1, YU Zhijun3, LIU Chunchun2, SHI Mingjian1, ZHOU Xiaogang4, HAN Jiaye1, GUO Qishan4

1.Information Institute, Ministry of Emergency Management of the People ' s Republic of China , Beijing  100029 , China；2.PetroChina Huabei Oilfield Company,Renqiu  062552 , Hebei, China；3.Ningxia New Energy Limited Company, China Energy Conservation and Environmental Protection Group , Yinchuan  750002 , Ningxia, China；4.Shanxi Shangdao Energy Development Limited Company, Jinzhong  030600 , Shanxi, China

Abstract: In order to promote the development of gas resources in Wulan abandoned coal mine,the gas occurrence pattern,resource distribution,enrichment mode and development advantages of the study area were analyzed.Based on the analysis of resource potential and existing mature technologies,the technical countermeasures of gas development were discussed.The results showed that the area had the characteristics of “simple structure,many coal seams,large coal thickness,high gas content and good permeability,large pressure gradient of reservoir and large gas resources”.Under the conditions of fault mudstone daubing,hydrodynamic plugging and good caprock configuration,the gas enrichment mode was caprock-fault-hydrodynamic plugging type,and the sweetzone of the gas occurance was predicted based on this.Based on the above research and understanding,the technical countermeasures for gas development were put forward．

Key words:Wulan abandoned coal mine;geological characteritic of gas occurance;resource development;technical counter measure

乌兰废弃煤矿瓦斯赋存地质特征及开发技术_王勃.pdf