Heerema Marine Contractors Nederland B.v.

Heerema Marine Contractors Nederland Se

Other

Heerema Marine Contractors

Cornelis Van Zandwijk

Frits-Jan Koppert

Cornelis Benard

Gerardus Cornelius Van Grieken

Timotheus Johannes Rutten

Maikel Hillenaar

Thomas Balder

Eduard Wiersema

Robert Reinder Narold

Coen Maarten Spanjers

Noortje Willemein Maria Sturm

Robert Paul Hovinga

Walter Petrus Johannes Wassenaar

Alexander Lambertus Johannes Verkuijl

Pieter De Goede

Johannes Hendrik Adriaansen

Walter Petrus Wassenaar

Alexander Lambertus Verkuijl

A method of laying a pipeline () on a seabed (), said method comprising the steps of; constructing a section of pipeline () by interconnecting pipe sections (), positioning the section of pipeline on an underwater storage surface (), and recovering the section of pipeline from the under water storage surface and spooling the section of pipeline on a reel () provided on a vessel ().

Method of laying a pipeline

A stinger () for a pipeline laying vessel, the stinger includes at least one track () which in use at least partly surrounds a firing line along which the pipeline () is laid, and at least one pipeline support () for supporting the pipeline, which pipeline support is movable along said track.

Stinger for a pipeline laying vessel

A pipeline laying vessel for laying a pipeline () on a seabed, which pipeline laying vessel comprises a hull, a positioning device () for positioning a pipe section in a firing line () along which the pipeline is laid, which positioning device is supported by the hull, and a clamp () for holding the pipeline suspended from the vessel, wherein the clamp is located in the firing line, and comprises a support device () constructed and arranged to allow the clamp to hold the pipeline in a first mode wherein the clamp has a fixed position relative to the positioning device, and in a second mode () wherein the clamp is pivotable relative to the positioning device.

Pipeline laying vessel for laying a pipeline on a seabed

A traction device for paying out and retrieving a flexible line including a line mover, wherein the line mover includes at least one movable friction surface, the friction surface in total defines at least two arc sections configured to move the line along with the arc sections, in use the line is wound around the friction surface such that the line has a first contact area being in contact with the first arc section and a second contact area being in contact with the second arc section, and the traction device includes a line controller coupled to the line between the first contact area and the second contact area and configured to control the velocity with which the line in use is fed to the second arc section, and also a method and use of the traction device.

Traction device and method for paying out and retrieving a flexible line

The invention relates to a pipeline laying vessel () for laying a pipeline () at a seabed () and comprising a tower () comprising a firing line () along which in use the pipeline is laid and at least one work station () for connecting a pipe section () to a suspended pipeline and a method of laying pipeline at a sea bed with such a pipe laying vessel.

Pipeline laying vessel and method of laying a pipeline

A method for manufacturing a double walled pipeline comprises providing a pipeline section including an inner tubular member and an outer tubular member, providing a coupling member, and controlling the stress distribution in the inner tubular member and the outer tubular member by coupling the inner tubular member and the outer tubular member directly to the coupling member.

Method for manufacturing a double walled pipeline

A method and apparatus for joining pipe sections () together to form an underwater pipeline. The pipe sections () are in an abutting position and have a generally vertical orientation. The apparatus comprises at least two welding equipment carriers () and at least two welding heads (). Each welding head is connected to an equipment carrier () by means of at least one umbilical (). The apparatus further comprises a welding head guide assembly () which is adapted to be fixed to one of said upper of lower pipe sections. The welding head guide assembly () guides the welding heads about the pipe sections (). The apparatus further comprises a guiding device () which guides the welding equipment carriers () around said welding area (). The welding equipment carriers () are movable independently from one another.

Apparatus and method for joining pipe ends together

The present invention relates to a method for laying a pipeline using a vessel () comprising a crane () comprising the following steps lifting a new pipe section () using the crane, placing a new pipe section on an existing pipeline (), lining up the new pipe section with respect to the existing pipeline, welding the new section to the existing section, lowering the joined new section and the existing pipe, supporting the joined new section so that the crane is free to lift another new section. The invention further relates to a pipe-laying vessel for carrying out such method.

Crane assisted pipe lay

The invention relates to a method for positioning an end () of a first pipe section () relative to an end () of a second pipe section (), the method comprising: (a) prepositioning the end () of the first pipe section () near the end () of the second pipe section (), defining a connection area () comprising the respective ends () of the first and second pipe sections (); (b) performing a measuring process comprising a plurality of measuring steps, each measuring step comprising: (b1) moving a sensing device () to a location () near the connection area (); (b2) automatically measuring the location () of the sensing device () relative to a reference location (); (b3) automatically measuring point positions () of points on the ends () of the first and second pipe sections () relative to the sensing device location (); (c) determining a target position of the end () of the first pipe section () relative to the end) of the second pipe section () on the basis of the measured point positions (); and (d) moving at least one of the first and second pipe sections () in order to obtain the target position.

Method and device for positioning ends of pipe sections relative to one another

With a method and device for producing a channel in the ground, in a first step, an excavating device is positioned at the starting point of a channel to be produced. The excavating device has an excavating head which is provided with one or more liquid jetting devices. Then, a mixture of soil and water is formed by spraying liquid from the liquid jetting devices. This mixture is discharged. The excavating head advances in the excavating direction while the liquid is being sprayed. Thus, the channel is produced. When the end point of the excavation has been reached, at least a part of the excavating device is uncoupled and moved back to the starting point of the channel, so it can be used again.

Method for making a channel in the ground, excavating device for making a channel in the ground, assembly comprising an excavating device and a construction element

An anchoring method and device, for anchoring a pipeline to a seabed. The pipeline may extend from a well which is located on a seabed to a floating platform. Tension forces which are exerted on the pipeline by the platform are diverted into the seabed by the anchoring device.

Growing community of inventors

Waddinxveen, Netherlands

Cornelis Van Zandwijk