E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/46.3, 166/51
E21B 33/035 (2006.01)
Patent
CA 1177390
ABSTRACT OF THE DISCLOSURE A diverless subsea flowline connection system in- cludes a plurality of connectors for remotely connecting the end of a bundle of flowlines to the ends of a plurality of bundles of individual flowlines. Guidance components direct the end portion of each bundle of individual flow- lines into precise connecting alignment with a correspond- ing end portion of the bundled flowlines without damage to the connecting seals. The end portion of the bundled flow- lines are covered and sealed so that these flowlines can be pulled across a sea floor without damage to their connect- ing ends. Means are provided for pulling the flowline bundle toward an aligning structure so that the lines can approach the structure from a wide variety of angles and the structure will guide the bundled flowlines into position where they can be aligned exactly with the individual dia- meter flowlines. This pulling means includes means for connecting a pulling cable to the radial center of a pulling head attached to the ends of the bundled flowlines. The ends of the individual flowlines are connected to connector lugs and aligned before the fluid-tight seals are set to prevent possible damage to the seals. After the individual flowline ends are precisely aligned the seals are set. The pulling, aligning, replacement of seals and fluid-tight connecting of the individual flowlines is all directed by remote control from the surface of the sea.
394415
Ames Thomas J.
Cuiper Glen H.
Fetherstonhaugh & Co.
Fmc Corporation
LandOfFree
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