Marine riser buoyancy assembly

Details Marine riser buoyancy assembly Marine riser buoyancy assembly

1982-08-26

1984-10-16

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

166350, 166359, E21B 1701

Patent

active

044772076

ABSTRACT:
A buoyancy assembly for mounting on a pipe such as a marine riser having service lines, such as choke and kill lines extending therealong, the assembly including discontinuous clamping band members shaped to encompass the pipe and having brackets disposed to join the ends of the band members and tighten their grip on the pipe when bolts joining the band members to the brackets are tightened, the brackets having opposed walls extending outwardly therefrom and supporting cradles to receive and clamp the service lines, and the assembly including arcuate flotation modules of syntactic foam shaped to lie against the riser pipe and removably occupy the spaces between the service lines and form a generally cylindrical outer contour, the modules being held in place against the pipe by tensioning belts each comprising a strap anchored to the adjacent brackets and being tensioned by a tension bar gripping an end of a strap and bolted by tensioning bolts to a link which is pivotally connected to the adjacent bracket. Multiple service line supporting cradles are spaced around the circumference of the clamping bands at positions opposite each service line.

REFERENCES:
patent: 3705432 (1972-12-01), Watkins
patent: 3729756 (1973-05-01), Cook et al.
patent: 4047579 (1977-09-01), Wilckens et al.
patent: 4128921 (1978-12-01), Heinze
patent: 4176986 (1979-12-01), Taft et al.
patent: 4249610 (1981-02-01), Loland

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