US 11,448,029 B2 · Multi vessel method and system for placing an object on a seabed

Abstract

A method is for placing an object on a seabed. The method includes connecting the object to at least two vessels by use of a work wire; attaching one or more buoyancy devices to the work wire, to achieve a distributed buoyancy of the work wire that forms a double curvature which disassociates at least some vessel movement from the object, to allow for controlled movement of the object; and co-operating the vessels to move the object into a position in a sea distant from the vessels, to lower the object to the seabed and to place the object on the seabed. Also described is a system for transporting an object to a position in a sea where the water comprises gas bubbles significantly lowering the load-carrying capacity of the water and for lowering the object to an area having a wellbore from which the gas bubbles enter the sea.

Claims17

Dependent claims

A method for placing an object on a seabed, the method comprising the steps of:

connecting the object to at least two vessels by use of a work wire;
attaching one or more buoyancy devices to the work wire such that the one or more buoyancy devices provide buoyancy to the work wire and to the object via the work wire, to achieve a distributed buoyancy of the work wire that forms a double curvature which disassociates at least some vessel movement from the object, to allow for controlled movement of the object;
and
co-operating the vessels to move the object into a position in a sea distant from the vessels, to lower the object to the seabed and to place the object on the seabed.

1 more element

Dependencies are inferred from the claim text.

Multi vessel method and system for placing an object on a seabed

Life of this patent

Multi vessel method and system for placing an object on a seabed

Life of this patent

Abstract

Claims17