| NKT FLEXIBLES I/S Patent applications |
| Patent application number | Title | Published |
|---|
| 20110232798 | FLEXIBLE UNBONDED PIPE AND A METHOD FOR PRODUCING SUCH PIPE - The present invention relates to a flexible unbonded pipe comprising an inner liner capable of forming a barrier against outflow of a fluid which is conveyed through the pipe, and one or more armouring layers on the outer side of the inner liner. The flexible unbonded pipe comprises at least one polymer layer and at least one film layer, said polymer layer being bonded to said film layer via one or more bondings selected from the group of chemical bondings and physical bondings. The film layer may preferably be a metal film layer, such as aluminum film, stainless steel film or duplex film. The polymer layer may preferably be cross-linked polyethylene. The interfacial bonding between the polymer layer and the film layer should preferably be sufficiently strong to prevent creation of gas pockets between the layers when subjected to an increased pressure of aggressive fluids (hydrogen sulphides, methane and carbon dioxide) on the film side of the pipe. Thereby it is possible to protect armour layer(s) from aggressive fluids. | 09-29-2011 |
| 20110203695 | FLEXIBLE PIPE - The invention relates to a flexible pipe comprising a plurality of layers surrounding a longitudinal axis of the pipe, the plurality of layers comprising from inside and radially outwards an internal sheath, a pressure vault and one or more tensile armouring layers. The pressure vault comprises at least one helically wound folded metal strip, which folded metal strip is interlocked with itself in consecutive windings or interlocked with another helically wound metal strip. The at least one folded metal strip is folded along both of its edges to form protruding edge sections of two or more strip material layers, each of said protruding edge sections protruding in one of the directions towards or away from the longitudinal axis of the pipe. | 08-25-2011 |
| 20110154884 | PIPE SYSTEM, A GAS SENSING SYSTEM FOR A PIPE SYSTEM, AND A METHOD OF DETERMINING A GAS COMPONENT IN A CAVITY OF A PIPE - The invention relates to a pipe system comprising a pipe, a gas sensing station and a remote output system. The pipe comprises a pipe gas cavity, such as an annulus, extending lengthwise in part or all of the length of the pipe; the gas sensing station comprises a sensing gas cavity which is in gas communication with the pipe gas cavity: The sensing gas cavity comprises a photoacoustic spectroscope. The pipe system comprises at least one optical feeding fiber for feeding light to the photoacoustic spectroscope and a transmission path for transferring a signal from the photoacoustic spectroscope to the remote output system, the transmission path from the gas sensing station to the remote output system is an optical transmission path. | 06-30-2011 |
| 20110067776 | METHOD OF MANUFACTURING A REINFORCEMENT ELEMENT FOR A FLEXIBLE PIPELINE - For use in the manufacture of reinforcement layers for flexible pipes which are capable of absorbing compressive or tensile forces, and which are used for the transport of oil and gas, a thermoplastic material is applied to a strength-imparting layer. | 03-24-2011 |
| 20110026031 | PIPE SYSTEM, A FLUID SENSING SYSTEM FOR A PIPE SYSTEM, AND A METHOD OF DETERMINING A FLUID COMPONENT IN AN ANNULUS CAVITY OF A PIPE - The invention relates to a pipe system comprising
| 02-03-2011 |
| 20100089478 | FLEXIBLE PIPE - The invention relates to a flexible pipe comprising a plurality of layers surrounding a longitudinal axis and an at least partly integrated sensor arrangement. The plurality of layers comprising an internal sheath and one or more armouring layers, at least one armouring layer comprising at least one folded metal strip helically wound around said longitudinal axis of the pipe, at least a part of said sensor arrangement being placed in a fold of said folded metal strip, the sensor arrangement preferably comprises an optical fibre which is placed in the fold of said folded metal strip. By this flexible pipe with a sensor arrangement, the sensor arrangement may be incorporated into the armouring layer in a simple and safe way. The sensor arrangement may for example be capable of sensing at least one property, selected from the group of stress-strain, temperature, pipe leakage, wear, mechanical deformations, pressure, chemical corrosion, salt concentration of liquid in contact with the pipe and pH value of liquid in contact with the pipe. | 04-15-2010 |
| 20100062202 | FLEXIBLE PIPE - The invention relates to a flexible pipe comprising at least one polymer layer, and at least one armouring layer unbounded to said polymer layer, wherein at least one polymer layer is a cationic clay containing polymer layer of a polymer material comprising a polymer matrix and from about 0.1 to about 5% by weight of at least one cationic clay silicate. | 03-11-2010 |
| 20100059488 | METHOD OF WELDING DUPLEX STAINLESS STEEL STRIP FOR THE PRODUCTION OF AN ARMOURING LAYER OF A FLEXIBLE PIPE - The invention relates to a method of providing a duplex stainless steel strip for an armouring layer of a flexible pipe, said method comprising
| 03-11-2010 |
