Skip to main content

1 Result(s)

within Yugang Cheng Remove this filter Energy, general Remove this filter

and

  1. No Access

    Article

    Research and application of high-pressure water jets drilling and repairing failure drainage borehole for enhancing coalbed methane recovery in underground coal mines

    Draining gas from coal seams in underground coal mines is the main method of the coalbed methane exploitation in China. When the gas drainage boreholes are located at soft, fractured coal rock seams, phenomena...

    Songqiang **ao, Qingyang Ren, Yugang Cheng… in Geomechanics and Geophysics for Geo-Energy… (2022)