Excavating – Beneath a body of water – With vessel – propulsion – or anchor structure
Patent
1994-01-31
1995-06-06
Corbin, David H.
Excavating
Beneath a body of water
With vessel, propulsion, or anchor structure
37307, 37394, E02F 906
Patent
active
054211093
ABSTRACT:
A method of removing objects from the bottom of a body of water around a well head includes a vessel spooling out a link-chain or a cable-net from a winch located on the vessel, with the opposite end of the link-chain or cable-net attached to a swivel assembly placed over a vertical pile that marks the well head site. The link-chain or cable-net is laid along a path defined by a radius and a portion of the circumference extending from that radius of a circle of predetermined diameter. The vessel then lowers spuds to establish a rigid position and the link-chain or cable-net is winched in. Objects on the bottom of the body of water are either picked up by the net, or obstruct the link-chain or cable-net and can be marked for retrieval.
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American Oilfield Divers, Inc.
Batson Victor
Corbin David H.
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