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Matches 1 - 50 out of 6,991

Document Document Title
WO/2019/207031A1
The present invention relates to an unbonded flexible pipe for offshore 5 transport of fluid comprising oil and gas comprising an internal pressure sheath surrounded by an outer sheath, such that an annulus is formed between the internal...  
WO/2019/201180A1
Disclosed is a spheroidal graphite cast iron pipe comprising: a pipe body (1) having a spigot (12) at one end, a socket (11) at another end, and an inorganic nano-liner coating layer (2) on an inner wall thereof. Further disclosed is an ...  
WO/2019/189668A1
Provided are a refrigerant pipe, a heat exchanger, and a method for manufacturing a refrigerant pipe, with which corrosion can be suppressed in a refrigerant pipe containing copper. The refrigerant pipe comprises a pipe main body contain...  
WO/2019/183667A1
A passive cathodic protection process for preservation of em bedded metallic foundations entails embedding a wrap around a metallic foundation. The wrap has an outer sheath and an inner absorbent mat to be in direct contact with the meta...  
WO/2019/180113A1
The invention relates to a line to be submerged in a body of water, comprising: an outer sheath defining an inner volume; an inner sheath arranged in the inner volume and defining a passage for the transport of a fluid, particularly of h...  
WO/2019/171045A1
A liner bridge for a lined pipelinehas boresextending through a tubularwall and terminals fitted in the bores, each terminal being exposed to aninward side of the wall for conducting electricity to anelectrofusion element. A sealing inte...  
WO/2019/165502A1
A method and system (10) for applying a coating of a material to a pipe (12) has a formwork (20) made of two or more parts (34a), (34b) arranged to be releasably coupled together. The parts (34a), (34b) are configured to form a wall that...  
WO/2019/156584A1
A method of noncontact measurement of Cathodic Protection Current (CPC) is disclosed. The method includes inline measurement of a magnetic field induced by the CPC. To induce a non-zero magnetic field, an inline magnet is placed next ...  
WO/2019/148218A1
The invention relates to a plug connection between two tubular workpieces (1, 2) which are made of concrete and each of which has an inner liner (5) made of plastic, one workpiece forming a tip end (3) and the other forming a socket end ...  
WO/2019/141326A1
The present invention relates to a method for circulating a rinse liquid in a flexible pipe (1) having an upper first (5) end and a lower second end (6). The flexible pipe (1) comprises an internal pressure sheath and an outer sheath sur...  
WO/2019/119404A1
A corrosion-resistant graphene oil delivery pipe, comprising a PVC (polyvinyl chloride) polyethylene inner layer (1); adhesion assisting holes (2) are uniformly arranged on the outer wall of the PVC polyethylene inner layer, the outer wa...  
WO/2019/110946A1
The invention relates to an outer cladding for an offshore hose, comprising at least one block copolymer containg at least one rigid polyamide block and at least one flexible block. The invention relates in particular to a flexible tubul...  
WO/2019/106500A1
A pipe system (10) includes a first pipe section (12) and a second pipe section (14) arranged, and together defining a total length, along a longitudinal axis (15). The first and second pipe sections (12, 14) are movable with respect to ...  
WO/2019/107736A1
The present invention provides an ion water-treatment device comprising: a body between pipes; a fluorine resin member and a zinc member inside the body; and a reverse circulation pipe through which the front side of the body or the fron...  
WO/2019/104074A1
The present disclosure describes a system and method of depositing ceramic or ceramic composite coatings on the inside surface area of a tubular shape. The system and method described herein can provide an interior coating for tubes and ...  
WO/2019/102165A1
The invention mainly concerns the use of PEKK in order to reduce the CO2 and H2S permeability of a part intended to come into contact with a petroleum effluent. It also concerns a pipe for transporting a petroleum effluent, comprising a ...  
WO/2019/099266A1
The present invention relates to a method of coating a pipeline field joint comprising the steps of (a) applying a layer of a coating material composition comprising (i) a propylene polymer and (ii) a substantially linear ethylene copoly...  
WO/2019/097315A1
Described in the present disclosure is corrosion-resistant piping (for example, for transportation of oil, natural gas, petrochemicals, water, wastewater, utilities, or the like) and low-cost methods for manufacturing and using the same....  
WO/2019/091960A1
The invention relates to a heat-exchanger system comprising a wall (22) separating a first fluid from a second fluid and allowing a heat exchange between said fluids. A protective film (26) made of polymer material is provided on said wa...  
WO/2019/086766A1
The invention relates to a container (1) for recovering the heat energy of wastewater. The container (1) comprises a shell (10) and a continuous spiral pipe (2) for conveying wastewater through the container in a vertical direction. A fi...  
WO/2019/088913A1
There is provided a method for coating an inner surface of a pipe and the pipe having the coating. The method may comprise pressing a lining material spirally against an inner surface of a pipe over a length of the pipe and heating the p...  
WO/2019/087649A1
A steel pipe (10) that comprises: a tubular steel layer (11); an alloy layer (14) that has a ζ layer (14b) and covers an outer surface of the steel layer (11); and a zinc layer (15) that covers the alloy layer (14). The zinc layer (15) ...  
WO/2019/087648A1
A steel pipe (10) that comprises: a tubular steel layer (11) that is joined at a weld part (12) that runs along a pipe axial direction; a plating layer (16) that covers the steel layer (11) and the weld part (12) from the outside in the ...  
WO/2019/081572A1
The invention relates to a pipe, the inner surface of which is lined with a thermoplastic layer, which pipe is produced by a method comprising the following steps: a) a metal pipe is provided, b) a tubular inner liner made of a thermopla...  
WO/2019/072900A1
A method for renovating a line (1) which carries a liquid or gaseous medium, in which method a first lining tube (10) formed from overlappingly wound fibre bands (2) impregnated with a curable liquid reaction resin is drawn into the line...  
WO/2019/073047A1
The invention concerns a method for implementing an outer coating (8) of a pipe (1) for transporting an oil and/or gas fluid in an underwater environment quickly, economically and more reliably. The method comprises the following steps: ...  
WO/2019/070323A1
Wellbore plungers 100 with non-metallic tubing-contacting surfaces 132 and wells 10 including the wellbore plungers. The wellbore plungers are configured to be utilized within a tubing conduit of the downhole tubing. The downhole tubing ...  
WO/2019/070152A1
The inventions relate to the internal insulation of a welded joint between pipes having an internal protective coating. In a first variant of the present method a protective sleeve is positioned coaxially inside the pipes to be joined. A...  
WO/2019/070153A1
The invention can be used for the internal insulation of a welded pipeline joint between pipes having an internal protective coating. A device according to a first variant comprises a power actuator having a cylindrical elastic working m...  
WO/2019/061378A1
A gas-discharging or gas and smoke-discharging pipeline for a cleanroom, and a fabrication method therefor. The pipeline meets FM4922, FM4910 or other equal standards, and is used for discharging nonflammable chemical gases and corrosive...  
WO/2019/066670A1
The invention relates to the field of mechanical engineering, and specifically to technology for manufacturing steel pipes having a wear-resistant polymer coating used for building and operating oil and gas pipelines, heat supply systems...  
WO/2019/065721A1
Provided is a method by which a black-heart malleable cast iron member having a plating layer highly adhesive to a black-heart malleable cast iron member can be produced with less of a burden on the environment compared to conventional m...  
WO/2019/051592A1
A new protective polymeric sheet is described wherein said polymeric sheet includes perforations and attached spacers that allow air and water circulation when the sheet is in use. The sheet protects underlying structures from damage whi...  
WO/2019/044961A1
The present invention provides a pipe treaded joint and a method for producing the same. The pipe threaded joint is provided with a pin (4), a box (5), and a Zn-Ni alloy-coated layer (6). The pin (4) has a pin-side contact surface (40) i...  
WO/2019/013340A1
An anticorrosion structure provided with metal pipes and a self-adhesive silicone-based member or a self-fusing silicone-based member which is wound around a connection portion of the metal pipes.  
WO/2019/002024A1
Composite armour (1) for a flexible pipe. The armour (1) comprises a composite profile section (2) and a reinforcing strip (5). The composite profile section (2) is formed from reinforcing fibres (4) oriented longitudinally and embedded ...  
WO/2018/230972A1
A composite pipe according to the present invention has a stainless steel pipe with excellent corrosion resistance provided inside an inexpensive steel pipe with excellent strength having the exterior surface thereof treated to be anti-c...  
WO/2018/220360A1
The present document provides a pipe for control and forced circulation of corrosion-inhibiting fluids in an annulus thereof, the annulus being located between an inner pressure barrier (6) and an outer cover (8) of the pipe and containi...  
WO/2018/221557A1
A second connection unit is inserted from above into a first connection unit 34 that opens upwards. A protruding part 9 protrudes radially outwards from at least part of a center annular part 18. A housing 51 of a clamp 8 is provided at ...  
WO/2018/216497A1
The present invention provides a threaded joint for pipes that has excellent misalignment resistance, high torque-on-shoulder resistance, and excellent corrosion resistance, and a method for producing the same. This threaded joint for pi...  
WO/2018/217120A1
The invention relates to the construction of pipeline transportation and is used to protect an insulated surface of pipelines when said pipelines are laid in rocky and permafrost soils, as well as in soils containing inclusions causin...  
WO/2018/210212A1
A ductile iron pipe having an anti-corrosion inner coating, and a production process therefor. An epoxy coating is applied on the inner wall of the ductile iron pipe and the paint of the epoxy coating is a solvent-free phenolic epoxy cer...  
WO/2018/165305A3
A method and apparatus are provided for controlling a fuel delivery system to limit acidic corrosion. An exemplary control system includes a controller, at least one monitor, an output, and a remediation system. The monitor of the contro...  
WO/2018/208928A1
A SIPP spraying apparatus for applying a liner material to the inner wall of a pipe, the apparatus having a transport unit, an articulating neck, a spinner assembly, proximity sensors and a plurality of positioning assemblies, wherein th...  
WO/2018/196622A1
A high-performance, corrosion-resistant and economical composite steel coiled tubing and a manufacturing method therefor, the composite steel coiled tubing comprising: a metallurgically bonded base layer (1) and composite layer (2); the ...  
WO/2018/189609A1
A conduit or pipeline system configured to use a liquid containing fluid, such as water, which typically accumulates in low flow pipelines causing corrosion and accumulation of sediments, to remove sediments and prevent corrosion. The li...  
WO/2018/179652A1
Provided is an anti-corrosive structure provided with an anti-corrosive sheet layer and a protective layer, wherein: the anti-corrosive sheet layer is formed of an anti-corrosive sheet; the anti-corrosive sheet has a substrate and an ant...  
WO/2018/177984A1
The present invention relates to a method for coating the exterior of a pipe (2) having an interior coating (3), more particularly an interior plating, comprising: providing the pipe (2) in a coating system (1), locally heating an exteri...  
WO/2018/172751A1
The present invention relates to a fitting (1') for attaching low carbon steel pipes (3') with polyolefin liners (3') together. A compression ring (6') is inserted into the pipe such that the bore of the commissioned pipeline remains con...  
WO/2018/175862A1
Mitigating corrosion and surface scale formation in a sour gas well includes providing an oil-based liquid to a sour gas well having carbon steel tubing (112) with iron sulfide on a surface of the carbon steel tubing (112), contacting th...  

Matches 1 - 50 out of 6,991