Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Aker Subsea As

Emmanuel Persent

Gérard Papon

Jean Guesnon

Navid Saeedi

Jeremie Triadou

Eleonore Roguet

Daniel Averbuch

Fabrice Deleau

Oystein Luktvasslimo

Jerome Jouanin

Jaan Anderson

Bjorn Paulshus

Florence Richard

Jérémie Triadou

Jérôme Jouanin

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. Removable pin () therefore cooperates with locking ring () by being arranged in a connector element (). to be published.

Connector for assembling two riser sections with internal locking ring

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 method for upgrading a connector of an existing riser pipe by cutting out male connector element () or locking collar (), then by replacing locking collar () with a dismountable replacement locking collar (').

Method for upgrading a connector assembling two riser pipe sections by means of a dismountable locking collar

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 a line element comprising a hooped tube provided at both ends thereof with two receptacles in which male and female end fittings made of high-strength steel are fastened. The invention also relates to a riser section comprising at least one auxiliary line element having such characteristics. Furthermore, the invention relates to a method for upgrading a riser pipe by replacing an auxiliary line element with a line element having such characteristics.

Line element with hooped tube and high-strength steel end fittings, and method for upgrading a riser pipe with same

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

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 ().

Riser pipe with rigid auxiliary lines assembled by pins

The connector comprises a male flangeand a female flangeallowing to assemble a main tube and auxiliary line tubes A locking collarand a locking ringassemble the male flange and the female flange. Locking collaris mounted mobile in rotation on the outer surface of the male flange while cooperating with the outer surfaces of the male and female flanges. Locking ringis mounted mobile in rotation on the male element of the connector while cooperating with the inner surface of the female connector.

Growing community of inventors

Croissy sur Seine, France

Emmanuel Persent