Active confined pressure sealing technology on gas extraction drilling and application
Abstract：In view of the current poor gas drainage sealing effect problems, including serious leakage phenomenon, too low gas extraction concentration , ete, the paper put forward the active confined pressure sealing technology, through the pressure grouting and active supporting extraction drilling, can be effective in blocking extraction early drilling leak channel, and avoiding the gen- eration of late leak channel, so as to improve the hole sealing quality. Application test was carried out in Wang Xing Zhuang Mine of SDIC HeNan New Energy Development Co. , LTD, the experimental results show that the active confined pressure sealing technology can be long time reliable seal drilling and greatly improve concentration of gas extraction.
Keywords：gas drainageinitiative pressure supportingsealing technologysealing material
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 21-25 )