湿式工艺螺杆压缩机在低压气井开采中的应用

气田开发后期挖潜生产阶段，一般采取增压的方法延长生产期，提高采收率。目前依靠增压方式生产的气井越来越多，随着生产的继续，气井压力还将进一步降低，现有的增压采气设备（以活塞式增压机为主）难以满足气井不断降低的井口压力的需要。为此，有必要寻找或开发适合气井较低压力生产的低压或负压采气设备，所介绍的湿式工艺螺杆压缩机以其较低的吸气压力和中等处理量的特性，可作为选用的设备之一。

Application of the Wet Screw Compressor in Recoverying Low-pressure Natural Gas

In order to enhance the recovery ratio during the latter period of gas production in the gas fields, supercharging methods are often used to prolong the gas production period. At present more and more gas wells have to depend on the pressure charging to keep on their production. However, the pressure of gas wells will become lower and lower along with the continual yielding so the current pressure generating equipments, represented mainly by piston compressor, can hardly meet the requirement for keep-lowering wellhead pressure. Therefore, it is quite necessary to find low-pressure and negative pressure gas recovery equipments fit for rather low-pressure gas wells production. The recommended wet screw compressor can be one of selective gas recovery equipments because of its good features like being under relatively low air intake pressure and having moderate treatment in its operation.