Itp Sa

Majus Limited

Pierre Ollier

Jean-Aurélien Damour

Philippe Marchal

Christian Geertsen

Jean Damour

Ludovic Villatte

Guillaume Richard

Jean-Aurelien Damour

Jean Aurelien Damour

The invention relates to a segment of pipe-in-pipe pipeline comprising an annulus under reduced pressure sealed and delimited by a metallic internal pipe inserted into a metallic external pipe and provided with a measurement system to determine in a non-intrusive manner the state of the annulus, the measurement system being composed of a first internal emitter/receiver assembly placed inside the annulus and cooperating with means to measure a first physical quantity such as pressure, hygrometry or temperature inside the reduced pressure annulus and a second external emitter/receiver assembly arranged to the exterior of the segment and facing said first assembly.

Segment of pipe-in-pipe pipeline and the use of an acoustic transducer measurement system for the reduced pressure annulus

The invention relates to a method of manufacturing a pipe segment for a link tube between the sea floor and a petroleum drilling rig disposed on the sea surface, wherein it consists in:

Method of manufacturing a pipe segment

A thermally insulated pipe for transporting fluids, being connectable to at least one further pipe, is disclosed herein. The pipe comprises an outer pipe wall and an inner pipe wall substantially parallel to the outer pipe wall and configured to contain a fluid within the pipe. The inner pipe wall comprises a body portion and a connection portion extending therefrom, a thermal insulation layer provided between the outer pipe wall and the body portion of the inner pipe wall, and at least one male joinable end. The male joinable end comprises the connection portion of the inner pipe wall which terminates in a connection component adapted to engage a connection component of a further pipe, and a transition region where the outer pipe wall tapers continuously inwardly to meet the connection portion of the inner pipe wall.

Pipe section

A segment is fitted by screw-fastening for implementing a fluid transport pipe for transporting a fluid, the pipe including an inner wall and an outer wall, the segment including an inner tube and an outer tube that define an annular space between them. The segment includes in particular one heating duct placed in its annular space and opening out at either end of its annular space, the annular space being designed to be closed hermetically in order to enable it to be brought to a reduced pressure. A method of manufacturing the segment and a method of implementing the fluid transport pipe is described.

Thermally insulated and heated double-walled pipe segment for fitting by screw fastening, and a method of implementing such a pipe segment

A method of commissioning one subsea hydrocarbon well terminating by a wellhead, wherein, from a petroleum drilling rig, the method includes: screwing double-walled pipe segments together in mutual succession to form a thermally insulated floor-to-surface 1 hydrocarbons, and an outer pipe, between which pipes a thermally insulating material is disposed; connecting the floor-to-surface link pipe to wellhead; and extracting the hydrocarbons via the floor-to-surface link pipe to the drilling rig on the surface.

Method and apparatus for producing hydrocarbons from one subsea well

An installation () for continuous application of thermally or electrically insulating material () around an elongate element () having a generally circular cross-section. The installation includes a forcing device (), in form of a conical tube into which the element () is fed simultaneously at the large base end of the conical tube, a sheet (), on which the insulating material () is placed, means for translation of the element through a circular section () of the sheet (), and a device () for depositing of insulating material onto the sheet. Such an installation produces thermally insulated tubes or electrically insulated cables.

Growing community of inventors

Boulogne Billancourt, France

Pierre Ollier