Nitrogen Injection News Today

Three stages of nitrogen (N2) injection enhanced gas drainage through underground in-seam boreholes were carried out in a coal mine located in the southern Sydney basin. Due to the high CO2 content and low permeability, hard-to-drain coals were encountered during the excavation process in this coal mine. Two parallel in-seam boreholes (the length of 36 m, the diameter of 96 mm and the borehole space of 5 m) were drilled on the rib of the gateroad. A total of ten-cylinder packs of nitrogen (appro...

Wall area shortly thereafter. so not a whole lot has really gone our way. this nitrogen injection seems to have helped and has gone our way and, you know, were basically in a point of going back in again. >> how many rescuers are going back in? >> were sending two mine rescue teams for a total of 16 people. >> there was a rumor one more body was found. is that true? >> no, no additional -- there are still four miners unaccounted for. >> what is the possibility of -- >> right now we dont think th...

Bodies in the long-wall area shortly thereafter. so, not a whole lot has really gone our way. this nitrogen injection seems to have helped and has gone our y way, and, you know, were basically in a point of going back in again. >> how many rescuers are going back in? >> were sending two mine rescue teams, for a total of 16 people. >> there was a rumor that one more body was found. is that true? >> no. no additional -- there are still four miners unaccounted for. >> whats the possibility of sendi...