Gas Recovery – Wellhead Boosting & Vent Gas Recovery Solutions

Published 2026-10-20 · Jinan Shangling Technology Co., Ltd.

Gas recovery pressurizes low-pressure, vented or associated gas so it can be reused. It is a key measure for gas fields, CNG stations, tank farms and chemical plants to save energy and cut emissions. Typical applications include wellhead boosting, flare/vent gas recovery, BOG recovery and mother-station unloading boosting.

1. Wellhead Boosting for Late-Life Wells

As a gas well matures, wellhead pressure drops below the gathering network pressure (typically 1.6-4.0 MPa) and flow stops. A gas booster or compressor raises the wellhead flow from 0.3-2 MPa to network pressure, extending the economic life of the well. The booster must tolerate fluctuating flow and liquid carry-over.

2. Vent Gas and BOG Recovery

1. Flare/vent gas recovery: capture maintenance and relief vent gas instead of burning it;
2. BOG recovery: boost boil-off gas from LNG and condensate tanks back into the system or gas grid;
3. Casing-head gas recovery: collect and boost associated gas from the well annulus.

3. Gas Booster Selection for Recovery

1. Media compatibility: for sour, wet or condensate-bearing gas, use corrosion-resistant seals plus filtration and separation;
2. Explosion protection: natural gas is flammable; the booster and controls must meet the applicable hazardous-area rating (e.g. Ex d IIB T4);
3. Reliability: continuous recovery duty may require 24/7 operation with automatic start/stop;
4. Pressure and flow: pneumatic boosters suit small-to-medium flows; use a compressor for large flows.

4. Shangling Solution

Jinan Shangling Technology supplies natural gas booster pumps and complete gas recovery skids up to 100 MPa, with explosion-proof options, automatic start/stop and remote monitoring, custom-designed per gas composition and duty. For more details, please call 18668913679 or email ljys@163.com.