Allseas Group S.a.

Klaas Boudewijn Van Gelder

Robert Paul Hovinga

Arnold Andries Van Den Dool

Peter Ronald De Jong

An apparatus for laying a pipeline ( ) in water, comprising a vessel ( ) with devices for assembling a pipeline from pipe parts, an elongate curved guide body ( ) arrange on the hull of the vessel for guiding the pipeline from the vessel into the water, and a device ( ) for carrying the guide body into respectively out of the water, wherein the elongate guide body is box-like, whereby a part of the forces exerted by the pipeline is absorbed by the guide track and the load on the hull is reduced.

Apparatus for laying a pipeline in deep water

A device for lifting a sea-going structure (C), such as a drilling platform consisting of a superrstructure (B) and a jacket (J), which device consists of a flotation body (,) such as a boat provided with one or more laterally slidable lifting devices (,), wherein each lifting device (,) is provided with a coupling member (,) for fixing on a part of the substructure which is arranged for movement in all directions relative to the lifting device (,), whereby the device adapts better to the swell and the relative displacement of the flotation body (,) relative to the drilling platform.

Device and method for lifting a sea-going structure, for instance a drilling platform

A method for lifting a sea platform with its substructure attached from a seabed and moving that platform to a different location. Use is made of flotation bodies which are filled with water and attached to the substructure. The flotation bodies can be emptied of some water to provide greater flotation and can be rotated around a horizontal axis to facilitate movement of the entire assembly under various sea conditions.

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Delft, Netherlands

Klaas Boudewijn Van Gelder