Riser for Coil Tubing/Wire Line Injection
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
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.
71 Citations
27 Claims
-
1. 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. - View Dependent Claims (2, 3)
-
-
4. 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. - View Dependent Claims (5, 6, 9, 10, 11, 12)
-
-
7. 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.
-
-
8. 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.
-
-
13. 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. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. 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. - View Dependent Claims (21, 22, 23)
-
24. 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. - View Dependent Claims (25, 26, 27)
-
Specification