Compliant buoyancy can guide

Details Compliant buoyancy can guide Compliant buoyancy can guide

2006-08-29

2006-08-29

Beach, Thomas A (Department: 3671)

Wells

Submerged well

Riser

C166S350000, C166S359000, C114S264000, C405S224400

Reexamination Certificate

active

07096958

ABSTRACT:
A floating offshore platform, of the type having a buoyancy can disposed within a support structure, includes a can guide assembly that has at least two compliant compression pads that are configured and arranged to provide a non-linear load-versus-deflection characteristic in response to impact loads generated by the impact of the can against the guide assembly. At least one of the compression pads is substantially stiffer (less compliant) than the other pad. The pads are arranged so that the relatively soft pad absorbs the impact load before the relatively stiff pad is engaged. In one embodiment, first, second, and third compression pads are arranged vertically, the upper and lower pads being softer (more compliant) than the middle pad. In another embodiment, a first, relatively soft, compression pad coaxially surrounds a second, relatively stiff compression pad.

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