دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a gas lift valve that is controlled by the casing or annulus gas supply pressure.

dummy gas lift valve.

n: a blanking valve placed in a gas lift mandrel to block off annular communication to the tubing.

a solid body (non flowable) gas lift valve that “dummies off” a gas lift mandrel to seal the GLM or pocket.

a section of pipe used in the tubing into which a gas lift valve can be inserted. The mandrel will allow communication with the annulus gas lift supply through the valve.

a pressure operated valve, placed in a gas lift mandrels at designed points in the well. The gas lift supply gas is routed through the valves into the tubing. The top valves close and the lower valves open as the static liquid level drops in the well (the

gas lift valves where injection gas enters the valve and acts on the effective bellows area, overcoming the precharge in the valve and opening the valve (the retracting bellows lifts the needle off the seat) to allow gas lift gas flow from the gas filled

production fluid enters the valve and acts on the effective bellows area, compressing the bellows against the precharge pressure, lifting the needle off the seat and opening the valve. The injection gas then flows through the seat, through the reverse-flo

gas lift valve.

gas lift valves where injection gas enters the valve and acts on the effective bellows area, overcoming the precharge in the valve and opening the valve (the retracting bellows lifts the needle off the seat) to allow gas lift gas flow from the gas filled

when two or more gas lift valves are flowing gas at once.