A structure, such as a pipeline bundle, is pulled into or through shallow water, for example when launching the structure, by applying a tensile pulling force to the structure through rigging 22 that extends to the structure from a winch of a first vessel 12. The pulling force is at least partially reacted through a pennant line 24 that extends from the first vessel to a second vessel 14 and that hangs between the first and second vessels to engage the seabed soil 18 frictionally. The vessels may also self-propel to contribute their thrust to the pulling force. The pennant line includes a clump weight such as a bundle of chains that can be repositioned easily for additional pulls by being lifted between the vessels before being lowered to the seabed at a new location. A method of using the pulling arrangement and the pulling arrangement itself is disclosed.
Pulling Structures into Water
2021-11-10
Patent
Electronic Resource
English