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公开(公告)号:US20170356254A1
公开(公告)日:2017-12-14
申请号:US15532878
申请日:2015-12-04
Applicant: Saipem S.p.A.
Inventor: Alberto SERENA , Diego LAZZARIN , Gabriele CADEDDU
IPC: E21B17/10 , F16L3/205 , E21B33/038 , F16L1/12
CPC classification number: E21B17/1078 , E21B19/24 , E21B33/038 , E21B41/0007 , F16L1/123 , F16L3/205
Abstract: A connection assembly for engaging a tubular member underwater to restrain the tubular member from radial movement relative to the connection assembly includes a plurality of pads for engaging the tubular member at circumferentially spaced positions; and a plurality of biasing arrangements, each for biasing a respective pad radially inwardly into engagement with the tubular member; wherein each biasing arrangement includes a pre-loadable, mechanical, compressed spring arrangement for resiliently pressing its respective pad against the tubular member. The assembly need not employ any hydraulic components.