Wells – Submerged well – Riser
Patent
1997-02-14
1998-06-30
Acquah, Samuel A.
Wells
Submerged well
Riser
428 369, 428 3691, 403250, 403259, 403260, 403334, 403404, 405169, 4051951, 285114, 285149, 166350, 138109, 138139, 138141, E21B 1701, B29D 2200
Patent
active
057719756
ABSTRACT:
An end of a composite cylinder is formed about a multipiece end assembly having a contour which prevents the withdrawal of the end assembly from the cylinder. The pieces of the end assembly are relatively forced apart and a spacer is positioned between the parts to maintain the pieces in intimate contact with the inner surface of the cylinder thus preloading the end prior to application of an axial load or removing any residual gap from the manufacturing process. The cylinder may have end assemblies at both ends and to which may be coupled external connectors such as flange members, for construction of a marine riser.
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Anderson Jeffrey J.
Mickelson Craig S.
Nance Donald A.
Acquah Samuel A.
Northrop Grumman Corporation
Sutcliff Walter G.
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