What are the usage scenarios of the wellhead compressor?

What are the usage scenarios of the wellhead compressor? 

1. Scattered gas recovery scenario: The scattered collection and pressurization are completed for associated gas and trial production gas of single well without pipe network coverage in oil and gas exploitation, so as to avoid resource waste caused by direct venting. 

2. Wellhead stable production scenario: The wellhead gas production flow rate is stabilized through constant volume pressurization and pitch adjustment, so as to alleviate the problems of insufficient pressure and liquid and sand in the later stage of low-pressure gas well exploitation and maintain the continuous production of gas wells. 

3. On-site resource utilization scenario: The purified and pressurized well gas is directly used for on-site consumption scenarios such as power generation and heating at the well site, without long-distance pipeline transportation, so as to meet the operation requirements of remote blocks.