ARM ASSEMBLY AND METHODS OF PASSING A PIPE FROM A FIRST VESSEL TO A SECOND VESSEL USING THE ARM ASSEMBLY
First Claim
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1. ) A method of passing a pipe from a first vessel to a second vessel, wherein the second vessel comprises an arm assembly which comprises:
- an arm platform at one end of the second vessel affixed to a lower end of a transom of the second vessel;
a folding bar affixed to an upper end of the transom of the second vessel and a second area of the arm platform;
a pair of arm transverse beams removeably affixed to a distal end of the arm platform, across a first axis;
a pair of skidding beams removeably and skiddably affixed to the arm transverse beams; and
a clamp affixed to a distal end of the skidding beams, wherein the clamp has a gate, the method comprising;
moving the second vessel within at least about 10 meters from the first vessel;
pinning jack-up legs of the second vessel;
aligning the skidding beams of the arm assembly with the pipe;
moving the skidding beams until the gate of the clamp of the skidding beams has passed the pipe and the pipe is disposed within the clamp;
closing the gate to encompass the pipe;
releasing the pipe from the first vessel; and
jacking-up the legs of the second vessel.
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Abstract
A method of passing a pipe from a first vessel to a second vessel using an arm assembly affixed to the second vessel is provided herein. The method includes moving the second vessel within proximity of the first vessel and anchoring, or pinning, the second vessel. The arm assembly of the second vessel is moved toward the pipe, until the pipe is secured, or disposed, therein. The first vessel then releases the pipe.
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Citations
20 Claims
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1. ) A method of passing a pipe from a first vessel to a second vessel, wherein the second vessel comprises an arm assembly which comprises:
- an arm platform at one end of the second vessel affixed to a lower end of a transom of the second vessel;
a folding bar affixed to an upper end of the transom of the second vessel and a second area of the arm platform;
a pair of arm transverse beams removeably affixed to a distal end of the arm platform, across a first axis;
a pair of skidding beams removeably and skiddably affixed to the arm transverse beams; and
a clamp affixed to a distal end of the skidding beams, wherein the clamp has a gate, the method comprising;moving the second vessel within at least about 10 meters from the first vessel; pinning jack-up legs of the second vessel; aligning the skidding beams of the arm assembly with the pipe; moving the skidding beams until the gate of the clamp of the skidding beams has passed the pipe and the pipe is disposed within the clamp; closing the gate to encompass the pipe; releasing the pipe from the first vessel; and jacking-up the legs of the second vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- an arm platform at one end of the second vessel affixed to a lower end of a transom of the second vessel;
Specification