Use of coiled tubing unit systems in sub sea operations
OwnerMichael Lee Smith, David Stricklandinventors
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Abstract
The present invention utilizes a coiled tubing unit at the ocean floor to perform operations previously not possible, or performed in a less efficient manner from the surface of the ocean. The operations of the present invention involve, sub sea drilling, salvage operations, and sub sea pipeline cleanout.
Claims28
A method for performing underwater operations comprising the use of a submerged coiled tubing unit.
A method for performing underwater salvage operations comprising the use of an underwater coiled tubing unit.
A method of performing underwater pipeline cleanout operations comprising the use of an underwater coiled tubing unit.
A method of performing underwater pipeline cleanout operations comprising:
- installing a sub sea hot tap system,
- creating a hot tap into said pipeline
- installing a coiled tubing unit over said pipeline
- inserting the coiled tubing into the pipeline;
- and
- cleaning out said pipeline.
A method of performing underwater operations comprising:
- locating a coiled tubing unit adjacent to submerged equipment;
- and
- utilizing said coiled tubing unit to drill under said submerged equipment.
A lifting plate for underwater salvage operation comprising:
- a fluid manifold;
- and
- at least one hydraulic expulsion system
A method of inserting a lifting plate under submerged equipment comprising pumping fluid through a hydraulic expulsion system coupled to said lifting plate.
A method of underwater drilling comprising:
- placing a coiled tubing unit near the ocean floor;
- placing a fluid pump adjacent to said coiled tubing unit;
- coupling said fluid pump to said coiled tubing unit;
- using an injector head to force the coiled tubing under said ocean floor;
- and
- utilizing a drilling implement coupled to said coiled tubing to drill through said ocean floor.
Dependencies are inferred from the claim text.