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Acergy France Sas patents

Recent patent applications related to Acergy France Sas. Acergy France Sas is listed as an Agent/Assignee. Note: Acergy France Sas may have other listings under different names/spellings. We're not affiliated with Acergy France Sas, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Acergy France Sas-related inventors

Repair of pipeline welds using friction stir processing

A method of using friction stir processing to repair a defect in a pre-existing weld of a pipeline of steel or other ferrous alloy. The method comprises attaching run-on and run-off tabs to the pipeline on respective sides of the defect and then advancing a friction stir processing tool into the nm-on tab. ... Acergy France Sas

Subsea pipe-in-pipe structures

A pipe-in-pipe assembly with thermally-insulating spacers positioned in an annulus to act radially between inner and outer pipes is disclosed. The spacers have at least one circumferentially-extending array of circumferentially-spaced ribs that define longitudinally-extending passageways in gaps between neighbouring ribs of the array. ... Acergy France Sas

Termination bulkheads for subsea pipe-in-pipe systems

A pipe-in-pipe bulkhead assembly has inner and outer rings spaced in concentric relation to define a thermally-isolating gap in the annulus between them. Interlocking formations project into the annulus from each of the rings, presenting confronting faces where they overlap radially. ... Acergy France Sas

Lowering buoyant structures in water

A method lowers a hollow structure through water and installs that structure at a subsea location. The structure has an internal space containing a ballast material such as sea salt that is substantially denser than water. ... Acergy France Sas

Sealing arrangements for subsea pipe-in-pipe systems

A method of sealing an annulus between inner and outer pipe sections of a pipe-in-pipe system includes positioning a sealing mass in the annulus in contact with the inner and outer pipe sections. Deforming the sealing mass occurs, for example by shearing and compression, by effecting relative longitudinal movement between the inner and outer pipe sections. ... Acergy France Sas

Subsea pipe-in-pipe structures

A rigid pipe-in-pipe structure for subsea transportation of fluids includes inner and outer pipes defining a thermally-isolating annulus between them. Thermal insulation material is disposed in the annulus. ... Acergy France Sas

Sealing arrangements for subsea pipe-in-pipe systems

A method of sealing an annulus of an electrically trace-heated pipe-in-pipe structure including introducing a flowable filler material to mould a sealing mass in situ is disclosed. The sealing mass closes a restriction at which the annulus is narrowed radially and embeds at least one heating element that extends generally longitudinally through the restriction. ... Acergy France Sas

Scanning bevels in preparation for welding

A method measures an edge of a workpiece by scanning. The scanning is performed by a scanning tool mounted on a moving head of an edge-facing machine while that moving head is moved along the edge to be measured before, during or after an edge facing tool of the edge-facing machine that faces the edge. ... Acergy France Sas

Improving the bending behaviour of mechanically-lined rigid pipe

A method of making mechanically-lined pipe with primary expansion by plastically expanding a liner sleeve within an outer pipe, under lining pressure applied internally to the liner sleeve. On relieving the lining pressure, elastic radial contraction of the outer pipe makes a mechanical bond between the outer pipe and the liner sleeve. ... Acergy France Sas

Branch structures of electrically-heated pipe-in-pipe flowlines

A flowline branch structure (10) has at least one inner branch assembly with an inner flowline branch and at least one inner flowline pipe attached to and communicating with the inner flowline branch. At least one outer branch assembly (12) of the flowline branch structure has an outer branch housing disposed around the inner flowline branch and at least one outer pipe (14) disposed around the inner flowline pipe and attached to the outer branch housing. ... Acergy France Sas

Fabrication of pipe strings using friction stir welding

A method of fabricating a metal pipeline by friction stir welding (fsw) along a circumferential interface includes spinning first and second fsw tools about respective axes of rotation in contact with a pipe wall to heat, plasticize, and stir respective zones of plasticized metal at the interface. The zone of plasticized metal produced by the second fsw tool extends deeper into the pipe wall than the zone of plasticized metal produced by the first fsw tool. ... Acergy France Sas

Fabrication of pipe strings using friction stir welding

A method of fabrication by friction stir welding (fsw) at an interface between adjoining components such as pipe lengths of a pipeline has layers of different metals on each side. Fsw is performed from one side of the adjoining components by effecting relative movement of a first fsw tool along the interface. ... Acergy France Sas

Production riser with a gas lift facility

A subsea riser system with a gas-lift facility has a production riser having a riser conduit and at least one lift gas injection port communicating with the riser conduit. An umbilical is arranged to supply lift gas to the lift gas injection port. ... Acergy France Sas

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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. is not affiliated or associated with Acergy France Sas in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Acergy France Sas with additional patents listed. Browse our Agent directory for other possible listings. Page by