Newcastle upon Tyne, United Kingdom
Newcastle upon Tyne, United Kingdom

Time filter

Source Type

Patent
Wellstream International Ltd | Date: 2014-05-28

Apparatus for providing a thermal insulation layer in a flexible pipe, including one or more encapsulated regions of aerogel material disposed in a layer of flexible pipe body is disclosed. In addition, flexible pipe body including such apparatus, and a method of manufacturing flexible pipe body is disclosed.


Patent
Wellstream International Ltd | Date: 2014-04-30

A sheath apparatus (300) for housing tubes and/or cables, (302) for incorporation into a flexible pipe body (100), including: an elongate body portion (304), comprising an outer surface (306) and a channel (308) for receiving a tube or cable (302) within the body portion (304), and further comprising at least one opening (312) connecting the channel and the outer surface, wherein the at least one opening (312) comprises a continuous opening extending along the elongate body portion (304) or a plurality of discrete openings at predetermined positions along the elongate body portion, and wherein the channel (308) defines an inner surface (310) of the body portion (304) for contacting the tube or cable. (302)


Patent
Wellstream International Ltd | Date: 2014-06-25

A method and apparatus are disclosed for extruding a polymer layer (335). The apparatus includes an extruder head (300) comprising at least one outlet (340) for extruding polymer over an underlying substrate layer (325) and at least one support surface region (350) that supports polymer along a respective transport path portion (l) of a transport path extending from the outlet (340) to the underlying substrate layer (325).


Patent
Wellstream International Ltd | Date: 2014-03-12

A first embodiment of a detection apparatus arranged to detect defects within a flexible pipe body comprises a signal generator, a receiver, a correlator and a processor. The signal generator is arranged to couple to first and second electrically conductive members extending at least partially along the length of a flexible pipe and electrically isolated from one another to form an electrical transmission line, the signal generator being arranged to generate an electrical test signal and to apply the test signal between the first and second electrically conductive members, the test signal comprising a pulse code modulated electrical signal. The receiver is arranged to couple to the first and second electrically conductive members and to receive an electrical return signal comprising a reflection of the test signal. The correlator is arranged to correlate the test signal with the return signal and to determine a correlation signal. The processor is arranged to detect variation of the correlation signal, and to determine if a detected variation is indicative of a pipe defect. A second embodiment of a detection apparatus arranged to detect defects within a flexible pipe at least partially surrounded by seawater comprises an impedance monitor and a processor. The impedance monitor is arranged to measure the impedance between an electrically conductive member extending at least partially along the length of a flexible pipe and a seawater electrode in contact with seawater surrounding at least part of the flexible pipe in response to an electrical test signal applied to the electrically conductive member at first and second frequencies. The processor is arranged to detect variation of the measured impedance for an electrical test signal at a first frequency, and if a variation of the measured impedance is detected, to determine if the variation is indicative of a pipe defect, and if so to determine the distance from the seawater electrode to a pipe defect by comparison of the measured impedances at the first and second frequencies. Methods of detecting defects within a flexible pipe body, a pipeline apparatus and methods of forming pipeline apparatuses are also disclosed.


Patent
Wellstream International Ltd | Date: 2014-10-03

A riser or jumper assembly for transporting production, exportation or injection fluids is disclosed as is a method for providing buoyancy to such an assembly. The riser or jumper assembly includes a first segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting, a further segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and an intermediate segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and at least one buoyancy element.


Patent
Wellstream International Ltd | Date: 2014-01-01

A test apparatus (12) and a method of testing a sample (30) are disclosed. The method comprises receiving a test sample (30) within a test chamber (14), the test chamber (14) containing two or more iron saturation elements (2) separated by a spacer (16); and filling the test chamber (14) with a test solution, the iron saturation elements (2) being arranged to saturate the test solution with iron. Each iron saturation element (2) is shaped such that it has a predetermined surface area such that the ratio of the volume of the test solution to the surface area of the iron saturation elements (2) and the test sample (30) exposed to the test solution can be calculated.


Patent
Wellstream International Ltd | Date: 2014-06-25

An apparatus and method are disclosed for protecting an outer layer of a flexible pipe (100). The apparatus includes a protective sleeve body (350) comprising a first end region and a further end region. At least one connector element (370) is also provided which is securable to the first end region of the sleeve body (350) for securing the sleeve body with respect to a flexible pipe (100) located proximate to a wear hazard. The sleeve body (350)is securable uncovered over a portion of an outer sheath of the flexible pipe (100) between the outer sheath and the wear hazard to provide a protected portion of flexible pipe (100) having a bending stiffness substantially equal to a bending stiffness of a remaining portion of the flexible pipe which is uncovered by the sleeve body (350).


Patent
Wellstream International Ltd | Date: 2014-03-12

A detection apparatus arranged to detect defects within a flexible pipe at least partially surrounded by seawater comprises an impedance monitor and a processor. The impedance monitor is arranged to measure the impedance between an electrically conductive member extending at least partially along the length of a flexible pipe and a seawater electrode in contact with seawater surrounding at least part of the flexible pipe in response to an electrical test signal applied to the electrically conductive member at first and second frequencies. The processor is arranged to detect variation of the measured impedance for an electrical test signal at a first frequency, and if a variation of the measured impedance is detected, to determine if the variation is indicative of a pipe defect, and if so to determine the distance from the seawater electrode to a pipe defect by comparison of the measured impedances at the first and second frequencies. Methods of detecting defects within a flexible pipe body, a pipeline apparatus and methods of forming pipeline apparatuses are also disclosed.


Patent
Wellstream International Ltd | Date: 2014-04-30

A flexible pipe body layer and method of producing a flexible pipe body layer are disclosed. The method includes coextruding an inner sub-layer and an outer sub-layer, wherein the inner sub-layer and outer sub-layer comprise a polymer, and wherein the inner sub-layer has a lower modulus of elasticity than the outer sub-layer.


Patent
Wellstream International Ltd | Date: 2016-02-23

Apparatus and method for supporting a riser are disclosed. The apparatus includes an anchoring element for anchoring a riser to a fixed structure, and a supporting portion configured to support a section of flexible pipe, the supporting portion having a bearing surface for the section of flexible pipe to bear against to thereby restrain the flexible pipe from upward movement.

Loading Wellstream International Ltd collaborators
Loading Wellstream International Ltd collaborators