Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Aker Subsea As

Gérard Papon

Emmanuel Persent

Jean Guesnon

Navid Saeedi

Yann Poirette

Fabrice Deleau

Timothee Perdrizet

Pauline Bozonnet

Eleonore Roguet

Alice Pourtier

Eric Sanchez

Alexandre Pagot

Frederic Bazer-Bachi

Eric Lemaire

Claude Mabile

Pierre-Yves Le Goff

Daniel Averbuch

Thierry Bancel

Jeremie Triadou

Gilbert Duriez

Christine Noïk

Jean-Christophe Gilloteaux

Victor Dupin

Gilles Ferrer

Philippe Gilbert

Oystein Luktvasslimo

Jaan Anderson

Bjorn Paulshus

Florence Richard

Aurélie Mouret

Timothée Perdrizet

The invention relates to a connector for assembling two sections of a riser. The connector comprises two riser sections that are assembled by a locking ring with the aid of two bayonet connections. The connector additionally comprises means for securing the locking ring against the connector elements.

Connector for assembling two sections of a riser, comprising an outer locking ring and securing means

The present invention relates to a compact connector design with an internal locking ring (). The connector according to the invention comprises a locking ring () allowing bayonet type connection on either side with two riser sections. Furthermore, the connector comprises at least one removable pin () for translationally blocking locking ring (), notably upon locking and unlocking.

Connector for assembling two riser segments, comprising an internal locking ring and removable pins

The present invention relates to a connector comprising an external locking ring () allowing bayonet type connection on either side with two male () and female () connector elements, by means of studs having identical angular ranges. Furthermore, the connector comprises at least one removable pin () for translationally blocking locking ring (), notably upon locking and unlocking.

Connector for assembling two riser segments, comprising an external locking ring and removable pins

The present invention relates to an offshore wind turbine on a floating support structure () comprising in combination: a main floater () comprising a part of substantially cylindrical shape, a concrete circular element () having a diameter greater than the diameter of the main floater, providing a stationary mass at the base of the floater and a damper, supplementary permanent ballast () arranged at the base of the main floater, dynamic ballast boxes () included in the main floater and distributed ringwise on the periphery of the floater.

Floating offshore wind turbine comprising a combination of damping means

The present invention describes a type of radial bed reactor which can allow a small quantity of catalyst to be used. Application to a regenerative reforming process reactor.

Radial bed reactor allowing the use of a small quantity of catalyst

The present invention relates to a floating mounting () which includes ballasting means () in order to vary the draught of the floating mounting. The floating mounting () according to the invention has a depth-variable horizontal cross-section, such that the second moment of area of the cross-section of the floating mounting, at the buoyancy surface (Sd), is higher when the floating mounting is deballasted, compared with the second moment of area of the buoyancy surface of the floating mounting, at the buoyancy surface (Sb), when the floating mounting is ballasted.

Floating mounting having a depth-variable horizontal cross-section

The present invention relates to a riser section () equipped with an inner locking ring (). According to the invention, auxiliary line elements () are secured to one end of main tube () and they are mobile with respect to the other end of main tube () through the agency of a sliding pivot connection, whose relative translational motion is limited by a clearance adjustment means (). The invention also relates to a riser consisting of several sections () and to the use of the riser for carrying out an offshore drilling operation.

Riser pipe section equipped with an inner locking ring and with a clearance adjustment means between the auxiliary line elements and the main tube elements

The present invention relates to a riser section () equipped with an external locking ring (). Locking ring () cooperates with a male connector element () and a female connector element () by means of a series of studs. The invention also relates to a riser consisting of several sections () and to the use of the riser for carrying out an offshore drilling operation.

Riser pipe section equipped with a locking ring arranged between the main tube and the auxiliary line

The present invention is a connector () for a riser equipped with an external locking collar (). Locking collar () cooperates with a male flange () of a male connector element () and a female flange () of a female connector element () by means of a series of tenons. The invention also relates to a riser including several sections () assembled by a connector ().

Connector for risers equipped with an external locking collar

The invention relates to a high-pressure pipe element having at least two metal tubesreinforced by hoopsand, the ends of the tubes being bare. The tubes are assembled end to end by a weldof the bared ends. A sleevecovers the weldas some of the hoopingandof each tube, forming an annular space between the bare ends of the tubes and the sleeve, said space being filled with a setting material The invention also relates to manufacturing the high-pressure pipe element.

High-pressure pipe element having an assembly of hooped tubes and method of manufacture

A riser pipe section () is disclose for offshore well drilling operations comprising a main tube element () having as an extension a male connector element () and a female connector element () comprising a first series of tenons. At least one auxiliary tube element () is secured to the male connector element () and to the female connector element () so that the main tube element () and the auxiliary tube element () jointly transmit tensile stresses between the male connector element () and the female connector element (). A locking ring is mounted on the male connector element and the ring comprises a second series of tenons.

Riser pipe section with flanged auxiliary lines and bayonet connections

A connector includes a male flange and a female flange allowing to assemble a main tube and auxiliary line tubes. A locking ring assembles the male flange and the female flange. The locking ring is mounted mobile in rotation on the outer periphery of the male flange while cooperating with the outer periphery of the male and female flanges.

Riser section connector with flanges and external locking ring

The riser pipe section comprises a main tubeand auxiliary line elementsarranged parallel to tube. The ends of the main tube comprise connectorsandallowing longitudinal stresses to be transmitted. The ends of auxiliary line elementscomprise connectorsand Auxiliary line elementsconsist of two partsandassembled by an adjustment deviceorallowing the axial length of each auxiliary line element to be adjusted.

Riser pipe with adjustable auxiliary lines

The connection system allows to assemble two sections of a riser pipe used for offshore drilling, the riser pipe comprising a main tube and at least one auxiliary line arranged parallel to said tube. The connection system comprises a connector A for assembling two main tube sections and connecting means Bfor assembling two auxiliary line sections. Connecting means Bare arranged, with respect to connector A, in such a way that the overall dimensions E of the connection system are smaller than the sum of the overall dimensions EA of the connector and of the overall dimensions EBof the connecting means.

Riser pipe with rigid auxiliary lines and offset connectors

The invention relates to a riser pipe section () comprising a main tube (), at least one auxiliary line element () arranged substantially parallel to said tube (), the ends of the main tube comprising connection means allowing longitudinal stresses to be transmitted and the ends of the auxiliary line element comprising linking means allowing longitudinal stresses to be transmitted, said linking means comprising at least one locking pin ().

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Les Essarts le Roi, France

Gérard Papon