Gathering Transmission Technology of Low-pressure Gas

Low-pressure gas includes shallow gas, coalbed gas, associated gas and natural gas of midlate stage exploration.Two booster ways for gathering transmission of low-pressure natural gas are introduced, and advantages and disadvantages of the booster way with compressor booster and ejector compression are compared. Status in quo of gathering transmission technology with negative pressure process is reviewed. Problems existed in gathering transmission technology with negative pressure process are put forward. According to the developing level of natural gas industry in China, suggestions to improve low-pressure natural gas's transmission technology are proposed.