The wellhead booster unit for oil and gas fields primarily adopts complete sets of main engines from the M/H/CFA/RAM series of COOPER, USA. The main engine speed ranges from 1500 to 1800 RPM and can be driven by electricity or gas. It features a low-oil lubrication structure and can be integrated with filtration, separation, dehydration, and gas injection systems. The gas volume and exhaust pressure can be customized according to user requirements.