A flexible pipe for subsea transportation of production fluids, a method of manufacturing flexible pipe body and a method of providing corrosion protection to armour wires of at least one tensile armour layer of a flexible pipe having a breached pipe annulus are disclosed. The flexible pipe comprises a fluid retaining layer, an outer sheath and at least one tensile armour layer comprising a plurality of helically wound monofilament armour wires of a first material, each having a non-circular cross section with an aspect ratio of greater than 1:2 disposed between the fluid retaining layer and the outer sheath. The tensile armour layer further comprises at least one helically wound elongate anode element substantially having a cross-section aspect ratio of 1:1 and comprising a further material, interposed between armour wires, the anode element cross section having an area that is 50% or less of a corresponding area of said non-circular cross section.

A flexible pipe connector for effecting control and forced circulation of corrosion-inhibiting fluids through an annulus between inner and outer sheaths of a flexible pipe having multiple connected segments includes an attachment mechanism for connecting to an end of a segment of flexible pipe and at least two distributing rings for distributing corrosion-inhibiting fluid. The rings are configured to be positioned in the annulus of the flexible pipe, wherein at least one distributing ring has fluidic access to the annulus of the flexible pipe. This distributing ring is configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that does not have fluidic access to the annulus, A distributing ring that does not have fluidic access to the annulus of the flexible pipe is configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that comprises fluidic access to the annulus.

A rubber hose includes a distinctly colored inner wear indicator integrated into its liner, wherein a distance b of the inner wear indicator from the inner surface of the liner is less than 40% of the liner's thickness v, and height h of the wear indicator, measured perpendicularly to a longitudinal axis of the hose, falls between 1% to 90% of liner thickness v, or even from 10% to 40% of the liner thickness v. The inner wear indicator may have concentric sectional surface area of the inner wear indicator may even gradually decrease in the radial direction as a function of distance from the longitudinal axis. The rubber hose may be connected at one end to a plunger pump and connected at a second to a common manifold, in an oilfield pump system, or used in any hose application in an oilfield fluid pump system.

Tubing comprising a tubing wall formed of an elongate thermoplastic ribbon helically wrapped and heat bonded to itself to form the tubing wall. The tubing may include one or more elongate conductors helically wrapped around and along the tubing wall. The tubing may include an elongate reinforcement rib helically wrapped around and along the tubing wall such that the tubing wall includes a first portion in which the elongate reinforcement rib covers the one or more elongate conductors and a second portion in which the one or more elongate conductors are uncovered by the elongate reinforcement rib and the elongate reinforcement rib wraps around the tubing wall.

Described is a hose and a method of manufacturing a hose. The hose comprises: an inner tube for communicating fluid; a reinforcement layer positioned over the inner tube; an intermediate cover positioned over the reinforcement layer, wherein the intermediate cover has a thickness of between 1.3 mm and 3.0 mm and comprises a material having a hardness of between 40 Shore A and 60 Shore A; and an outer cover comprising an abrasion resistant material.

A method and system for easily predicting a remaining lifetime of a hose are provided. A hose remaining lifetime prediction method and a hose remaining lifetime prediction system, for predicting a remaining lifetime of a hose 1 in use, include obtaining in advance, for a hose of the same type, relationship between use time of an inner tubular rubber layer 11 at a reference temperature and a physical property value of rubber forming the inner tubular rubber layer 11, generating a thermal degradation model for the inner tubular rubber layer 11, calculating, for the hose 1 in use, reference temperature use time being use time of the inner tubular rubber layer 11 at the reference temperature until a time of the prediction, and predicting the remaining lifetime of the hose 1 in use, based on comparison between the reference temperature use time and the thermal degradation model.

Hoses include a tube, a reinforcement layer disposed outwardly from the tube, and a cover layer disposed outwardly from the reinforcement layer. The cover layer may be based on a first elastomeric blend of a first chlorinated polyethylene and chlorosulphonated polyethylene, a first flame-resistant composition, and a peroxide/sulfur curing system. The tube may be based upon a second elastomeric blend of a second chlorinated polyethylene and ethylene vinyl acetate rubber, a second flame-resistant composition, and a peroxide curing system. The first flame-resistant package and the second flame-resistant package includes one or more ingredients selected from the group consisting of antimony oxide, zinc molybdate/magnesium silicate complex, magnesium aluminum hydroxy carbonate, and aluminum trihydroxide. In some aspects, the hoses meet the testing performance requirements of EN 45545-2, HL2/R22 category standard, and EN854 type 2TE standard.

A rubber composition for a cover layer of a hydraulic hose includes: ethylene vinyl acetate copolymer (EVA); and ethylene-propylene-diene terpolymer (EPDM). In an embodiment, the composition includes ethylene vinyl acetate copolymer (EVA) and ethylene-propylene-diene terpolymer (EPDM) and additives. The additives may include carbon black with a content of around 15 phr, silica with a content of around 20 phr, di-octyl adipate with a content of around 18 phr, aluminium hydroxide with a content of around 124 phr, magnesium hydroxide with a content of around 30 phr, and other chemicals with a content of around 20 phr. The other chemicals may include zinc oxide, peroxide curative, antioxidant, coagents and processing aids.

A multilayer containment and protection tube for conduits, cables and the like, includes an inner layer made of polymeric material, which is electrically at least antistatic, with a smooth internal surface, which forms a duct for supporting conduits or cables. The tube further includes one or more intermediate layers of electrically at least antistatic reinforcement, an outer layer made of electrically at least antistatic polymeric material, and a covering and finishing layer, which is electrically at least antistatic.

A high pressure pipe of high density polyethylene material includes an internal lining (3), an intermediate reinforcement layer (2) and an outer cover layer (1). The high density polyethylene material of the internal lining (3) is filled with a filling material (5). As a result, the mixture of high density polyethylene and filling material provides resistance against higher temperatures, allowing the pipe to be able to transport fluids at elevated temperatures.