Gas lift apparatus and method for producing a well
AssigneeSchlumberger Technology Corporation
InventorROBERT P ROUEN
Life of this patent
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Abstract
A gas lift system is provided for use in unloading a fluid from a perforation interval of a subterranean well to facilitate producing gas from a gas-bearing formation. The system may include a packer having dual ports, a tubing string running from the surface to the packer for producing the well, and an injection tool extending below from the packer into the perforation interval. The injection tool may include at least one gas lift valve for injecting gas into the perforating interval of the well.
Claims20
A gas lift tool for providing artificial lift in a well, comprising:
- a hollow tube open at a first end and closed at a second end;
- gas lift valves situated along a length of the hollow tube, each gas lift valve communicating between an interior and an exterior of the hollow tube;
- and
- an outside surface of the hollow tube sized to form a pressure seal with a second aperture of a well packer in which a production tube occupies a first aperture of the well packer.
A system for providing artificial lift in a well, comprising:
- a production tube for removing a resource from the well;
- a dual-port packer having one port attached near a deepest end of the production tube in the well;
- a hollow tube having an open end attached at the other port of the dual-port packer, and a closed end disposed deeper than the deepest end of the production tube;
- and
- at least a gas lift valve situated along a length of the hollow tube and communicating between an interior and an exterior of the hollow tube.
A method, comprising:
- installing a packer near a lower end of a production tube in a well;
- installing an injection tube in the packer, a first end of the injection tube at the packer and a gas lift valve attached to the injection tube deeper in the well than the end of the production tube;
- and
- forcing gas into the well above the packer to provide gas lift below the production tube.
Dependencies are inferred from the claim text.