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US 2005/0028339 A1Published application
Hydraulic well casing repair system and method therefor
OwnerSergio Leoninventor
Life of this patent
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Abstract
A hydraulic well casing repair system and method therefor. Pressurized fluid from an above-ground source is provided to a hydraulic swage body inside a well. The swage body comprises at least one movable member for exerting laterally outward pressure on the well casing. Rigid segmented concentric tubing communicates pressurized fluid to the swage body.
Claims20
A hydraulic swage system for repairing well casings, comprising, in combination:
- a swage body comprising at least one movable member for exerting pressure laterally outward from said swage body;
- an above-ground source of pressurized fluid coupled to said swage body;
- and
- a first tube coupled to both said swage body and said above-ground source of pressurized fluid so that said pressurized fluid entering said swage body from said first tube moves said at least one movable member laterally outward from said swage body.
1 more element
A hydraulic swage system for repairing well casings, comprising, in combination:
- a swage body defining a cavity and comprising at least one movable member for exerting pressure laterally outward from said swage body;
- a piston positioned in said cavity and coupled to at least one of said at least one movable member, said piston separating said cavity into a first portion and a second portion;
- an above-ground source of pressurized fluid coupled to said swage body;
- a first tube coupled to said first portion of said cavity for coupling said above-ground source of pressurized fluid to said first portion of said cavity;
- and
- a second tube coupled to said second portion of said cavity for coupling said above-ground source of pressurized fluid to said second portion of said cavity, at least one of said first tube and said second tube comprises a plurality of rigid segments.
3 more elements
A method of repairing well casings, comprising the steps of:
- providing a hydraulically operated swage body comprising at least one movable member for exerting pressure laterally outward from said swage body;
- providing an above-ground source of pressurized fluid;
- coupling a first end of a first tube to said swage body;
- lowering said swage body into a well having a casing;
- and
- supplying pressurized fluid from said above-ground source of pressurized fluid into a second end of said first tube so that said at least one movable member exerts laterally outward pressure on said casing.
3 more elements
Dependencies are inferred from the claim text.