Subsea plough for burying a flexible elongate member
AssigneeOsbit Limited
InventorsRobert GARNER, Matthew HEAP, Robert BLAKEMAN
Life of this patent
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Abstract
A subsea plough includes a plough share coupled to a chassis, boulder clearance and spoil clearance members, and front and rear support surfaces. In a first configuration, a maximum span of the boulder clearance member in an extended position is greater than a span of the spoil clearance member. The plough may be reconfigurable to include a backfill member. A method of use of the plough is provided in a boulder clearing only mode, and optional modes of simultaneous boulder clearing and trenching, second pass trenching, and backfilling a trench to bury a flexible elongate member in a seabed.
Claims21
A plough for forming a trench in a seabed, the plough comprising a chassis and having a longitudinal axis;
- wherein in a first configuration, the plough comprises:
- a share coupled to the chassis;
- a boulder clearance member provided towards a first, leading end of the plough;
- a spoil clearance member provided towards a second, trailing end of the plough;
- a front support surface and a rear support surface;
- and wherein in the first configuration, a maximum span of the boulder clearing member in an extended position is greater than a span of the spoil clearance member.
(canceled)
Dependencies are inferred from the claim text.