IP Library › Granted Patent US 12704052
Granted Patent B1
US 12704052 · App. 19/270,631 · Granted Aug 11, 2026

Gas lift mandrel

Inventor: Matthew Jordan Anthony Reid (Sexsmith, CA)
E21B43/123
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Quick Facts
Patent No.
US 12704052
App. No.
19/270,631
Granted
Aug 11, 2026
Kind
B1
Abstract

A gas lift mandrel having a valve assembly that is installed and operably coupled to a well tube wherein the mandrel is installed in alternate quantities in a vertical arrangement on the well tube. The mandrel includes a body having a wall member and an interior volume. Disposed within the interior volume is a valve assembly having a sleeve member wherein the valve assembly is movable between a first position and a second position. A gas capillary tube member is operably installed wherein a second end is sealably secured to a burst disc member and a first end is operably coupled to a hydraulic pump located on the surface. In its first position the valve assembly allows gas to enter a gas aperture and exit through a passage formed in the body. In its second position the valve assembly moves to inhibit fluid flow through the gas aperture and passage.

Claims (10)

1 . A gas lift mandrel configured to be operably coupled to a well tubing wherein the gas lift mandrel comprises:

a body, said body having a wall member, said wall member defining an interior volume, said body having a first end and a second end;

a gas capillary tube member, said gas capillary tube member having a first end and a second end, said gas capillary tube member being hollow, said gas capillary tube member being operably coupled to a pump proximate said first end of said gas capillary tube member wherein the pump is located on a surface proximate a well, said second end of said capillary tube member terminating within the interior volume of said body;

a burst disc member, said burst disc member being disposed within said interior volume of said body, said burst disc member being sealably coupled to said second end of said gas capillary tube member, said burst disc member having a membrane operable to rupture ensuing exposure to a determined pressure;

a valve assembly, said valve assembly further including a sleeve member, said sleeve member configured to be movable between a first position and a second position; and

wherein said sleeve member of said valve assembly is moved to said second position ensuing rupture of said burst disc member resulting in exposure of said valve assembly to pressure from a fluid disposed in said gas capillary tube member.

2 . The gas lift mandrel as recited in claim 1 , wherein said wall member of said body further includes a passage bored therethrough, said passage being proximate said valve assembly.

3 . The gas lift mandrel as recited in claim 2 , wherein said passage includes a gas aperture, wherein said gas aperture is exposed to an interior volume of a well tubing, said gas aperture configured to permit gas to flow into said passage when said valve assembly is in said first position.

4 . The gas lift mandrel as recited in claim 3 , wherein in said second position said sleeve member of said valve assembly is superposed said passage so as to inhibit flow of gas into said interior volume of said body.

5 . The gas lift mandrel as recited in claim 4 , wherein said body is elongated and cylindrical in shape.