Metal working – Means to assemble or disassemble – Coupling to conduit
Patent
1988-05-12
1989-09-26
Moon, Charlie T.
Metal working
Means to assemble or disassemble
Coupling to conduit
72 61, B23P 1904
Patent
active
048689645
ABSTRACT:
An apparatus for joining two tubular members together at a subsea location wherein one of the tubular members has internal grooves and the second tubular member is sufficiently small to slide into the first tubular member and the first tubular member has an external flange suitable for connecting to a flowline, which apparatus includes a tubular mandrel having means for connecting to said first tubular member, a resilient sleeve surrounding said mandrel and adapted to be positioned within said second tubular member, volume compensating means positioned within each of said grooves and testing means carried by said mandrel to allow testing of the joint while the mandrel is still in position after forming. A method of joining tubular members at a subsea location including the steps of inserting the second tubular member within the first tubular member after the volume compensators have been inserted in the internal grooves in the first member, exerting fluid pressure on the interior of the second tubular to form the second tubular member against the internal grooves of the first tubular member and testing the formed joint while the mandrel is still in position within said second tubular member. A second form of the invention includes the use of microspheres in an epoxy matrix positioned in internal grooves of the bell which are designed to collapse at pressures above the water pressure at the depth of the installation of the joint and at a pressure below the pressures which develope in trapped sea water in the groove during forming.
REFERENCES:
patent: 605195 (1898-06-01), Birtwisle
patent: 861127 (1907-07-01), Kleckner
patent: 2831711 (1958-04-01), Leadbetter
patent: 2893060 (1959-07-01), Wills
patent: 3359624 (1967-12-01), Cours et al.
patent: 4183555 (1980-01-01), Martin
patent: 4195390 (1980-04-01), Amen
patent: 4330144 (1982-05-01), Ridenour
patent: 4608739 (1986-09-01), Miller
patent: 4635333 (1987-01-01), Finch
"Pipe Repair System Reaches Prototype Stage"--Offshore Engineer, Mar. 1983, Issue.
Cameron Iron Works USA Inc.
Moon Charlie T.
LandOfFree
Apparatus for joining pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for joining pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for joining pipe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180145