陕西煤炭2025，Vol.44Issue(6)：28-31,37,5.DOI:10.20120/j.cnki.issn.1671-749x.2025.0605
多含水层同径止水技术在煤矿抽水试验应用研究
Application of multiple aquifer same diameter water stopping technology in coal mine pumping test
李东东 1刘珩博 1李鹏飞 1张莹辉 1殷浩东1
作者信息
- 1. 陕西省煤层气开发利用有限公司,陕西西安 710054
- 折叠
摘要
Abstract
When carrying out hydrogeological investigation and evaluation,it is of great significance to conduct stratified pumping test for each water-filled aquifer and accurately obtain hydrogeological parameters of aquifer.Taking H40310 bore-hole of Hujiahe Coal Mine in Binchang Mining Area as the research object,combined with the advantages of Packer sealing layered water stopping technology,on the basis of summarizing and analyzing the principle of multi-aquifer same diameter water stopping technology,through the design of pumping test scheme,the research on the use method and applicable condi-tions of the same diameter water stopping is carried out.The results show that the double embolization system can achieve the purpose of stratified pumping and sampling at any depth in the same diameter borehole,and the test effect is good.The permeability coefficient of the whole section of the Luohe Formation is 0.276 4 m/d.The permeability coefficient obtained by the same diameter water stopping pumping test is consistent with the permeability coefficient in the region,indicating that the results of the same diameter water stopping pumping test are credible.The use of expansion hose(airbag)water stopper with the same diameter can greatly reduce the pore size,avoid multiple reaming in the construction of hydrological hole,and the water stopping quality is reliable.关键词
多含水层/分层抽水/同径止水/抽水试验Key words
multi-aquifer/stratified pumping/same diameter water stopping/pumping test分类
矿山工程引用本文复制引用
李东东,刘珩博,李鹏飞,张莹辉,殷浩东..多含水层同径止水技术在煤矿抽水试验应用研究[J].陕西煤炭,2025,44(6):28-31,37,5.
