天然气压缩机在中晚期气田上的应用

THE APPLICATION OF NATURAL GAS COMPRESSOR IN THE MIDDLE AND LATE PERIOD OF GAS FIELDS DEVELOPMENT

利用天然气压缩机气举采气和增压输气,是解决四川中晚期气田因井压下降造成采输困难的办法。由于气田工况变化对压缩机性能有所影响,因此必须通过对压缩机进行转速调节,余隙调节,单作用运行,换缸,更换机种等方式来适应压缩机的非额定工况。并指出,为了满足气田变工况的要求,必须解决好压缩机选型和正确使用问题。

The application of natural gas compressor in gas lift production and gas transmission by booster is a way to ressolve the difficulties due to pressure drop ,which is caused by depletion in the middle and late period of gas field development. As the change of working conditions in gas fields will affect the performance of compressor,it' s necessary to adjust the rotary speed or stand off,adopt single-acting operation;change the cylinder or the mode of compressor to accomodate the non-rated working conditions.