Controlling buoyancy when towing, lowering and raising submerged structures
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United States of America Patent
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Aug 25, 2020
Grant Date -
Nov 14, 2019
app pub date -
Dec 22, 2017
filing date -
Dec 29, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A subsea structure has an elongate articulated buoyancy string having a longitudinal series of buoyancy elements, and at least one elongate buoyancy holder that is fixed relative to the structure and is capable of housing the buoyancy string. The buoyancy of the structure can be altered by moving the buoyancy string along a transit path that extends along and within the buoyancy holder and through an end opening of the buoyancy holder. The buoyancy string passes through that end opening on being inserted into or withdrawn from the buoyancy holder.
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