Offshore horizontal product lay arrangement
View Patent ↗An arrangement that brings all of the separate elements of equipment used to lay product offshore such as pipe, umbilicals, and power cables and assembles them into a single device that can be installed on a vessel of opportunity, and includes functional improvements of each. A base is used for mounting, integration, and installation of the separate elements onto a vessel. The base receives a movable lay chute, means for moving and stabilizing the lay chute, a movable hang off clamp and work table, a movable access platform, a product support arm and wheel, and a fixed chute.
1. A modular, portable product lay arrangement for an offshore vessel, comprising:
a. a base;
b. a means of guiding a product to be laid;
c. an A-frame pivotally mounted on the base such that the A-frame has a pivoting end and a traveling end, with the A-frame having an axis of rotation that is common with the radial center of the means for guiding the product in at least one position;
d. a combined hang off clamp and work table mounted at one end of the base; and
e. a fixed chute attached to the combined hang off clamp and work table.
2. The arrangement of claim 1 , wherein:
a. the means for guiding the product is mounted on a frame;
b. the frame has one end pivotally mounted on the base; and
c. means for selectively moving the frame and the means for guiding the product are attached to the base and the frame.
3. The arrangement of claim 1 , further comprising a combined product support wheel and wire rope sheave rotatably mounted on the traveling end of the A-frame.
4. The arrangement of claim 1 , further comprising a movable work platform positioned above the base and adjacent the means for guiding the product.
5. The arrangement of claim 1 , wherein the combined hang off clamp and work table is movably attached to the base for selectively opening and closing for allowing movement of the product or supporting the product.
6. A modular, portable product lay arrangement for an offshore vessel, comprising:
a. a base;
b. a means for guiding a product supported by a frame movably mounted on the base;
c. an A-frame pivotally mounted on the base such that the A-frame has a pivoting end and a traveling end, the A-frame having an axis of rotation that is common with the radial center of the means for guiding the product;
d. a combined product support wheel and wire rope sheave rotatably mounted on the traveling end of the A-frame;
e. a combined hang off clamp and work table mounted at one end of the base; and
f. a fixed chute attached to the combined hang off clamp and work table.
7. The arrangement of claim 6 , wherein:
a. the frame supporting the means for guiding the product has one end pivotally mounted on the base; and
b. means for selectively moving the frame and the means for guiding the product are attached to the base and the frame.
8. The arrangement of claim 6 , further comprising a movable work platform positioned above the base and adjacent the means for guiding the product.
9. The arrangement of claim 6 , wherein the combined hang off clamp and work table is movably attached to the base for selectively opening and closing for allowing movement of the product or supporting the product.
10. A modular, portable product lay arrangement for an offshore vessel, comprising:
a. a base;
b. a curved surface for guiding a product to be laid;
c. an A-frame pivotally mounted on the base such that the A-frame has a pivoting end and a traveling end, with the A-frame having an axis of rotation that is common with the radial center of the curved surface;
d. a combined hang off clamp and work table mounted at one end of the base; and
e. a fixed chute attached to the combined hang off clamp and work table.
11. The arrangement of claim 10 , wherein:
a. the curved surface is mounted on a frame;
b. the frame has one end pivotally mounted on the base; and
c. means for selectively moving the frame and the curved surface are attached to the base and the frame.
12. The arrangement of claim 10 , further comprising a combined product support wheel and wire rope sheave rotatably mounted on the traveling end of the A-frame.
13. The arrangement of claim 10 , further comprising a movable work platform positioned above the base and adjacent the curved surface.
14. The arrangement of claim 10 , wherein the combined hang off clamp and work table is movably attached to the base for selectively opening and closing for allowing movement of the product or supporting the product.