Method of spooling a bi-metallic pipe
AssigneeTechnip France
InventorsBrett Howard, Jean Louis Hoss
Life of this patent
Estimating the term…
Abstract
A method of spooling a marine pipeline (90) including a plurality of bi-metallic pipe sections (10) (66) onto a reel (60) including at least the steps of: (a) filling a first pipe section with a fluid (12); (b) spooling the first pipe section onto the reel; (c) filling a second pipe section with a fluid (78); (d) joining the first pipe section with the second pipe section wherein at least one of the first and second pipe sections maintains the fluid (12,78) therein; and (e) spooling the second pipe section onto the reel.
Claims15
A method of spooling a marine pipeline comprising a plurality of bi-metallic pipe sections onto a reel, the method comprising at least the steps of:
- (I) locating a plug at one end of the first pipe section;
- (ii) filling the first pipe section with a fluid;
- (iii) locating a second plug at the other end of the first pipe section;
- (iv) pressurising the fluid in the first pipe section;
- (v) locking the second plug to maintain the pressurised fluid in the first pipe section;
- (vi) spooling the first pipe section onto the reel;
- (vii) locating a first plug at one end of the second pipe section;
- (viii) filling the second pipe section with a fluid;
- (ix) locating a second plug at the other end of the second pipe section;
- (x) pressurising the fluid in the second pipe section;
- (xi) locking the second plug to maintain the pressurised fluid in the second pipe section;
- (xii) joining the first pipe section beyond its first or second plug with the second pipe section beyond its first or second plug to provide a joint;
- (xiii) filling the first and second pipe sections beneath the joint with a fluid;
- (xiv) moving at least one plug of the first pipe section across the joint;
- (xv) moving one plug of the first pipe section to the location of one plug of the second pipe section, and optionally withdrawing the first and second plugs of the second pipe section from the second pipe section;
- (xvi) spooling the second pipe section onto the reel;
- and
- (xvii) repeating steps (vii) to (xvi) with another second pipe section.
A method of spooling a marine pipeline comprising a plurality of bi-metallic pipe sections onto a reel, the method comprising at least the steps of:
- (a) filling a first pipe section with a fluid and pressurising the fluid in the first pipe section;
- (b) spooling the first pipe section onto the reel;
- (c) filling a second pipe section with a fluid and pressurising the fluid in the second pipe section;
- (d) joining the first pipe section with the second pipe section, wherein at least the second pipe section maintains the pressurised fluid therein;
- and then
- (e) spooling the second pipe section onto the reel, the method further comprising:
- (i) locating a plug at one end of the first pipe section;
- (ii) filling the first pipe section with a fluid;
- (iii) locating a second plug at the other end of the first pipe section;
- (iv) pressurising the fluid in the first pipe section;
- (v) locking the second plug to maintain the pressurised fluid in the first pipe section;
- (vi) spooling the first pipe section onto the reel;
- (vii) locating a first plug at one end of the second pipe section;
- (viii) filling the second pipe section with a fluid;
- (ix) locating a second plug at the other end of the second pipe section;
- (x) pressurising the fluid in the second pipe section;
- (xi) locking the second plug to maintain the pressurised fluid in the second pipe section;
- (xii) joining the first pipe section beyond its first or second plug with the second pipe section beyond its first or second plug to provide a joint;
- (xiii) filling the first and second pipe sections beneath the joint with a fluid;
- (xiv) moving at least one plug of the first pipe section across the joint;
- (xv) moving one plug of the first pipe section to the location of one plug of the second pipe section;
- (xvi) spooling the second pipe section onto the reel;
- and
- (xvii) repeating steps (vii) to (xvi) with another second pipe section.
Dependencies are inferred from the claim text.