Riser for Coil Tubing/Wire Line Injection
AssigneeMy Technologies, L.L.C.
InventorCharles R. Yemington
Life of this patent
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Abstract
The present invention is directed to a system including a self supporting riser (SSR) which is connected to a well to provide fluid communication to fossil hydrocarbon reservoirs deep below the seafloor. The SSR is constructed of a plurality of joints comprising regular joints and specialty joints that define the SSR and are selected to optimize the SSR for a well in a specific location. A unique aspect of the invention is further directed to a small vessel subject to high vessel motions that permits a coil tubing/wire line system to be mounted on a stabilizer system mounted on the vessel. The riser extension that connects the vessel to the self supporting riser preferably has a telescopic joint/section that is designed for the heave of the vessel.
Claims27
A stabilizer system for a vessel subject to high vessel motions of heave, pitch and roll comprising:
- a heave platform adapted for attachment to said vessel,
- a pitch and roll frame;
- two or more pitch and roll compensation cylinders attached to said frame, each said cylinder having a compliant coupling on each end of said cylinder, one coupling attached to said frame and the coupling at the other end of said cylinder attached to said platform.
A small sea vessel subject to high vessel motions of heave, pitch and roll and having a moon pool comprising:
- a stabilizer system attached to said vessel comprising:
- a platform attached to said vessel placing said platform over said moon pool;
- a pitch and roll stabilized frame;
- two or more pitch and roll compensation cylinders attached to said frame, each cylinder having a compliant coupling on each end of said cylinder, one coupling attached to said frame and the coupling at the other end of cylinder attached to said platform.
A small sea vessel subject to high vessel motions of heave, pitch and roll and having a moon pool comprising:
- a riser vessel interface system including
- a stabilizer system attached to said vessel over said moon pool;
- and
- a riser extension connected to said stabilizer system, said riser extension adapted to be connected to a self supporting riser.
A small sea vessel subject to high vessel motions of heave, pitch and roll and having a porch extending beyond the deck comprising:
- a stabilizer system attached to said vessel including:
- a pitch and roll stabilized frame;
- and
- two or more pitch and roll compensation cylinders attached to said frame, each cylinder having a compliant coupling on each end of said cylinder, one coupling attached to said frame and the coupling at the other end of cylinder attached to said platform.
A small sea vessel subject to high vessel motions of heave, pitch and roll and having a work surface over exposed water comprising:
- a stabilizer system attached to said vessel over said exposed water including a pitch and roll frame;
- and
- a riser extension connected to said stabilizer system, said riser extension connected to a self supporting riser.
An intervention method comprising:
- running a coil tubing into a well on the seafloor through a self supporting riser attached on the wellhead by a coil tubing injector mounted on a small sea vessel subject to high vessel motions of heave, pitch and roll.
A small sea vessel subject to high vessel motions of heave, pitch and roll and having a moon pool comprising:
- a stabilizer system attached to said vessel over said moon pool including;
- a platform attached to said vessel;
- a pitch and roll stabilized frame;
- and
- two or more pitch and roll compensation cylinders attached to said frame, each cylinder having a compliant coupling on each end of said cylinder, one coupling attached to said frame and the coupling at the other end of cylinder attached to said platform;
- and
- a riser extension connected to said stabilizer system, said riser extension including a telescopic joint and adapted to be connected to a self supporting riser.
Dependencies are inferred from the claim text.