Rotary vane compressors are occasionally employed in the upstream oil and gas industry for applications such as gas gathering, vapor recovery, and flare gas compression. These compressors utilize a rotor with sliding vanes that move in and out as the rotor turns within a cavity, creating sealed pockets that compress the gas. Rotary vane technology is valued for its smooth and continuous flow, relatively simple maintenance requirements, and ability to handle moderate volumes of gas at low to medium pressures. Their compact design and reliable operation make them suitable for installations where space and operational simplicity are important, especially in field locations dealing with variable gas streams or intermittent duty cycles.