By the end of July this year, Yantai Oil Services Group R & D total power of 14 thousand kilowatts of gas compressor units sent to the Central Asian countries of Kazakhstan. It is understood that the export to Central Asia gas engine driven air compressor set up the most domestic. The air compressor is mainly used in the oil field associated gas recovery, moisture and moisture gas injection gas lift operations. From two years ago, the oil tank azarchs company accumulated ordered sixteen sets of high power air compressor. Compared to the previously ordered twelve electric drive air compressor, the four sets of combustion driven air compressor, each power up to Sanqianwubaiqian watts, hit the power of domestic gas engine driven air compressor of the most.