Natural gas conveying bore-hole sealing method, involves feeding fluid into conveying bore-hole, conveying minerals containing water through fluid for precipitation, and feeding high saliniferous solution into bore-hole under pressure

摘要

The method involves feeding fluid e.g. mono alcohol such as methanol, ethanol or isopropanol, or multi-valued alcohol such as di-glycol or tri ethylene glycol, or ketone or ester, into a natural gas conveying bore-hole, and conveying minerals containing water through the fluid for precipitation. High saliniferous solution is fed into the bore-hole under pressure, and remaining water after the precipitating process is conveyed out, where the precipitation is supported by injection of reactive gases.