A fiber composite rod intervention cable includes a central electrical cable portion; a bonding layer; a generally unidirectional carbon fiber composite mantle layer; a protective, balanced braided fiber composite layer. The central electrical cable portion includes a generally central electrical conductor with a first cross-section conductive area; an inner insulation layer on the central electrical conductor; and a coaxial electrical conductor layer having a second cross section conductive area equal to the first cross-section conductive area. The fiber composite rod intervention cable is arranged for being injected into a well from a drum unit via an injection unit at the wellhead and may carry an intervention tool, a logging tool, a well tractor with or without an energy source.

Downhole slickline cable including a polymer matrix having reinforcing fibers embedded therein. A plurality of integrity-sensing optical fibers are embedded within the polymer composite and extend along an axial length of the downhole slickline cable that enables slickline cable structural and mechanical integrity self-diagnosis. The cable may include energy transmission lines that include one or more integrity-sensing optical fibers.

Disclosed is a cable assembly including at least one conductor and a metal sheath disposed over the at least one conductor, the metal sheath including a continuous strip of metal having a plurality of revolutions. A first revolution of the plurality of revolutions may include a first section having a curved profile extending into an interior cavity of the metal sheath, and a second section extending from the first section, the second section extending along a lengthwise axis, wherein a length of the second section, along the lengthwise axis, is at least two times as large as a diameter of the first section when the metal sheath is in a linear configuration. The first revolution may further include a third section extending from the second section, the third section including a free end terminating within a recess defined by a curved profile of a first section of an adjacent revolution.

Flexible pipe body, a flexible pipe and a method of manufacturing pipe body are disclosed. The flexible pipe body comprises a tensile armour layer and a supporting layer radially outside, or radially inside, and in an abutting relationship with the tensile armour layer. The supporting layer comprises a helically wound constraining tape element and a helically wound electrically conductive tape element.

A method for providing power to an artificial lift system includes providing at least two conductors, each conductor being an insulated conductor having insulating material surrounding such conductor. The at least two conductors are surrounded with a composite fiber jacket to form a power cable, the composite fiber jacket being an outermost member of the power cable and having a substantially smooth exterior surface. The power cable is connected to the artificial lift system such that a load of the artificial lift system is transferred to the composite fiber jacket of the power cable.

A charging cable is provided. The charging cable includes wires for supplying power, a wire for transferring a signal and a sheath, and exhibits substantially improved mechanical properties such as low-temperature flexibility and abrasion resistance, substantially improved chemical properties such as oil resistance and substantially improved electrical properties such as insulation resistance. Moreover, the charging cable has improved electrical, mechanical and chemical properties by improving insulation resistance, heat resistance and low-temperature flexibility of wires, as compared to conventional wires coated with polyvinylchloride (PVC).

A charging cable is provided. The charging cable includes wires for supplying power, a wire for transferring a signal and a sheath, and exhibits substantially improved mechanical properties such as low-temperature flexibility and abrasion resistance, substantially improved chemical properties such as oil resistance and substantially improved electrical properties such as insulation resistance. Moreover, the charging cable has improved electrical, mechanical and chemical properties by improving insulation resistance, heat resistance and low-temperature flexibility of wires, as compared to conventional wires coated with polyvinylchloride (PVC).

An extensible electroconductive wiring material includes a flexible electroconductive material and insulating elastic bodies and, wherein the flexible electroconductive material having an electroconductive layer has vent peripheral edge portions in which vent holes and/or vent slits are penetrated and aligned in series and/or in parallel along an energization direction of the electroconductive layer while the vent peripheral edge portions are energizably linked, and the vent peripheral edge portions is sealed and covered by the insulating elastic bodies, so as not to be exposed; and the insulating elastic bodies, have penetration slits, and/or penetration holes which penetrate therethrough while matching the vent peripheral edge portions and are smaller than the vent holes and the vent slits. The extensible electroconductive wiring module has a plurality of these extensible electroconductive wiring materials.

An extensible electroconductive wiring material includes a flexible electroconductive material and insulating elastic bodies and, wherein the flexible electroconductive material having an electroconductive layer has vent peripheral edge portions in which vent holes and/or vent slits are penetrated and aligned in series and/or in parallel along an energization direction of the electroconductive layer while the vent peripheral edge portions are energizably linked, and the vent peripheral edge portions is sealed and covered by the insulating elastic bodies, so as not to be exposed; and the insulating elastic bodies, have penetration slits, and/or penetration holes which penetrate therethrough while matching the vent peripheral edge portions and are smaller than the vent holes and the vent slits. The extensible electroconductive wiring module has a plurality of these extensible electroconductive wiring materials.

An electric wire includes a conductor having a cross-sectional area of not less than 180 mm.sup.2 and not more than 220 mm.sup.2, an insulation provided so as to cover the outer periphery of the conductor, and a wire sheath provided so as to cover the outer periphery of the insulation. The amount of deflection is not less than 180 mm when, at 23° C., one end of the electric wire is fixed to a fixture table so that another end horizontally protrudes 400 mm from the fixture table and a weight of 2 kg is attached to the other end, and cracks and breaks do not occur when wound with a bending diameter of three times the diameter at −40° C.