Abstract: A method of coating a field joint, pipe sections for forming a coated field joint, and a coated field joint formed thereby. First and second angular cut backs are provided in the parent coating of each pipe section. The first angular cut back is at an angle of about 30°+?0.5° relative to the longitudinal axis of the field joint, and the second angular cut back is positioned further from the field joint than the first angular cut back. The first and second angular cut backs result in the parent coating having a stepped profile, a step in the stepped profile between the first and second angular cut backs, the step is substantially parallel to the longitudinal axis of the field joint and is often substantially free of indentations. The field joint coating may be injection moulded to have an upstand that is less than or equal to about 5 mm.

Abstract: A pipeline monitoring system, utilizing RFID sensors. The pipeline monitoring system includes a pipeline having at least one RFID sensor for a wireless remote detection of any one or more of pipeline conditions including hydrocarbons presence, moisture presence, temperature and strain, and an RF interrogator or transceiver capable of interrogating said sensor.

Abstract: A pipeline having a series of interconnected pipe sections forming Field Joints, each pipe section having a coating with a thermal insulation layer which extends over a substantial portion of a length of the pipe section, and an anti-corrosion layer situated underneath the thermal insulation layer. The pipeline has a Field Joint Coating (FJC) at connection regions where ends of the adjacent pipe sections are interconnected. Each FJC has an anti-corrosion coating layer, an intermediate coating layer of a thermoplastic material which covers the anti-corrosion coating layer, and a FJC thermal insulation layer which covers the intermediate coating layer.

Abstract: A method of coating a field joint, pipe sections for forming a coated field joint, and a coated field joint formed thereby. First and second angular cut backs are provided in the parent coating of each pipe section. The first angular cut back is at an angle of about 30°+?0.5° relative to the longitudinal axis of the field joint, and the second angular cut back is positioned further from the field joint than the first angular cut back. The first and second angular cut backs result in the parent coating having a stepped profile, a step in the stepped profile between the first and second angular cut backs, the step is substantially parallel to the longitudinal axis of the field joint and is often substantially free of indentations. The field joint coating may be injection moulded to have an upstand that is less than or equal to about 5 mm.

Abstract: A method of coating a field joint, pipe sections for forming a coated field joint, and a coated field joint formed thereby. First and second angular cut backs are provided in the parent coating of each pipe section. The first angular cut back is at an angle of about 30°±5° relative to the longitudinal axis of the field joint, and the second angular cut back is positioned further from the field joint than the first angular cut back. The first and second angular cut backs result in the parent coating having a stepped profile, a step in the stepped profile between the first and second angular cut backs, the is substantially parallel to the longitudinal axis of the field joint and is free of indentations. The field joint coating is injection moulded to have an upstand that is less than or equal to about 5 mm.

Abstract: Provided is an apparatus for coating a girth weld and a cutback region surrounding said girth weld, said apparatus having lateral travel at least equal to the length of the cutback region and circumferential rotational travel around the pipe. The apparatus can provide a multiple component coating accurately and safely, without the need for solvent flushing of the apparatus.

Abstract: A scanner assembly for pipeline inspection, having a pipe mounting section and a scanner frame which is laterally displaceable with respect to the pipe mounting section.

Abstract: In an injection molded polypropylene field joint of an oil or gas pipeline, the three- dimensional geometry of the injection molded/cast coating can have an influence on the stress placed on the line coating during cooling. Specifically, it has been found that molding or casting a coating having circumferential grooves, or other groove geometry, proximal to the interface with the line coating, will reduce line coating failure proximal to the field joint, in particular line coating failure related to the initial spooling/reeling of the pipe.

Abstract: A flexible pipe includes: an inner liner formed as a tube and having an outer surface and an inner surface defining an inner diameter; a reinforcement layer bonded to the inner liner and including at least a first ply of reinforcing tape helically wrapped in a first helical direction about the inner liner and a second ply of reinforcing tape helically wrapped about the first ply of reinforcing tape, the second ply of reinforcing tape helically wrapped in a second helical direction opposite to the first helical direction; and an outer jacket applied over and bonded to the reinforcement layer, the outer jacket including a thermoplastic. A reinforcing tape for use in the pipe or other applications includes: a plurality of reinforcing fibers and a matrix about the plurality of reinforcing fibers to hold the reinforcing fibers in the form of a tape, the matrix including thermoplastic and an additive to increase the impact resistance of the thermoplastic.

Abstract: A scanner assembly for pipeline inspection, having a pipe mounting section and a scanner frame which is laterally displaceable with respect to the pipe mounting section.

Abstract: A method for forming a connection between two tubular sections having a polymeric outer surface jacket, using electrofusion to fusion bond a casing of similar, non-crosslinked polymer to the outer surface of the tubular sections.

Abstract: Provided is an apparatus for coating a girth weld and a cutback region surrounding said girth weld, said apparatus having lateral travel at least equal to the length of the cutback region and circumferential rotational travel around the pipe. The apparatus can provide a multiple component coating accurately and safely, without the need for solvent flushing of the apparatus.

Abstract: The present invention relates to coating compositions, processes for making them, and methods of application of the coating compositions. Further, the present invention relates to a process and apparatus for coating a metal substrate, for example an elongated metal tubular substrate such as a pipe. Most particularly, the coating can be used as an anti-corrosion coating on a pipe for use in oil, gas and water pipeline applications.

Abstract: An internal quench system for cooling pipes being coated is provided. The system comprises an internal quench lance having spray nozzles configured at one end of the internal quench lance. There is also provided wheels and retractable supports to support the internal quench lance without hindering the movement of the pipes. Each retract support is provided with a liquid coolant supplying means to provide liquid coolant to the internal quench lance. A process for using the internal quench system for cooling pipes being coated is also provided.

Abstract: A method of providing a foamed insulation coating on at least a portion of a pipe, including extruding a melt stream over the pipe portion. The melt stream includes a matrix polymer and expandable fillers in an unexpanded state, the melt stream being maintained at a sufficiently high temperature to maintain the matrix polymer in extrudable form and at a sufficiently high pressure to maintain the expandable fillers in the unexpanded state. Once extruded, the expandable fillers are permitted to expand into an expanded state at a lower pressure.

Abstract: This disclosure provides a new internal weld blasting system for blasting the internal surfaces of pipes, and the method of use thereof. The system comprises a control cage having two relatively narrow openings. An impeller forces abrasives onto a blast wheel, which in turn sprays the abrasives onto the internal surfaces of the pipes.

Abstract: A method of providing a foamed insulation coating on at least a portion of a pipe, including extruding a melt stream over the pipe portion. The melt stream includes a matrix polymer and expandable fillers in an unexpanded state, the melt stream being maintained at a sufficiently high temperature to maintain the matrix polymer in extrudable form and at a sufficiently high pressure to maintain the expandable fillers in the unexpanded state. Once extruded, the expandable fillers are permitted to expand into an expanded state at a lower pressure.

Abstract: A pipe lathe includes a shaft; a cutting head supported on the shaft for movement with the shaft; a mandrel positionable on an outboard end of the shaft for supporting the shaft along a machining axis; and a first external pipe clamp and a second external pipe clamp, the first and the second external pipe clamps supported for external pipe engagement substantially concentrically about the machining axis. Multiple spaced apart engagement sites provided by the mandrel within the pipe and the external pipe clamps on an outer surface of the pipe support the pipe in a linear and centered position for machining by the cutting head, even when the pipe is non-linear, flexible and possibly with a cross section that is non-circular.

Abstract: An insulated high-temperature transport conduit for use in undersea environments. The conduit comprises a continuous steel pipe having at least a first layer of thermal insulation provided over its outer surface. The first layer of thermal insulation comprises a polymer composition having a thermal conductivity of less than about 0.40 W/mK and long-term heat resistance at continuous operating temperatures within the range from about 150° C. to above about 205° C. The first thermal insulation layer comprises a polymer composition comprising a polymer selected from the group consisting of one or more fluoropolymers, hydrogenated nitrile butadiene rubber (HNBR), and a blend of one or more fluoropolymers with HNBR. The conduit may further comprise second and third layers of insulation on top of the first layer, along with a corrosion protection coating underlying the first thermal insulation layer.

Abstract: A method of coating a field joint and a coated field joint formed thereby. The field joint coating includes a first thermal insulation material injection molded over the uncoated field joint to form a first layer, and a second thermal insulation material injection molded over the first layer to form a second layer. The second material has a greater flexibility than the first material and a lower maximum operating temperature than the first material. In certain embodiments, the second material forms a significant part of the volume of the field joint coating.