What is gas lifting?

Gas lifting is a common method used to increase the production of oil and gas reservoirs. The technique involves injecting gas (usually natural gas or compressed air) into the production well to lift the fluids and reduce their density, enabling them to flow more easily to the surface. The gas is injected through tubing, usually through a series of valves and downhole tools.

Gas lifting can be used in both vertical and deviated wells, but it is most effective in wells that have relatively low pressure and are prone to liquid loading. Typically, gas lift systems are used in conjunction with other production methods as it is typically used to supplement the natural flow of oil and gas.

There are two types of gas lift systems- continuous and intermittent. Continuous gas lift is used in steady-state wells where the flow rate of the gas and liquid must be maintained. Intermittent gas lift is used in wells that experience irregular flow, where the gas injection is controlled by a timer or other control system.

Gas lift is a reliable and cost-effective method of maintaining or increasing production in oil and gas reservoirs. However, it does require some specialized equipment and expertise to implement and operate effectively.