A method of manufacturing a coated conducting wire assembly includes forming a conducting wire assembly by twist-deforming a conducting wire bundle, forming a coated conducting wire assembly by covering the conducting wire assembly with an insulation coating, and annealing the coated conducting wire assembly. The conducting wire bundle is formed by bundling a plurality of conducting wires. The conducting wire assembly includes a parallel portion, a left-wound portion, and a right-wound portion. The annealing is performed by heating and holding the coated conducting wire assembly at an annealing temperature while applying tension to the covered conducting wire assembly.

An overhead wire has a wire core having a main core and a plurality of auxiliary cores spirally and tightly stranded on the main core, and a conducting layer coating the wire core and having at least one aluminum wire layer. The main core and the auxiliary cores has fiber resin strands formed by fiber filament bundles permeated with resin through molding, and fiber filaments wound on and completely covering the fiber resin strands such that the fiber resin strand is isolated from the outside, and the at least one aluminum wire layer has a plurality of aluminum wires spirally and tightly stranded on the wire core.

A system, cable, and method for wireline operations are disclosed, in which a wireline cable may include one or more electrical wire having a compact stranded conductor, a first dielectric layer formed about the first electrical wire, and a strength member. The compact strands provide for increasing conductor size, increasing dielectric layer thickness, increasing armor size, and/or decreasing cable outer diameter. These parameters may be varied and optimized to provide specific wireline cable designs for particular wireline purposes. As compared to a conventional wireline cable employing uncompacted stranded conductors, the electrical resistance of the wireline cable may be lowered, the capacitance may be lowered, the operating temperature may be lowered, the outer diameter and weight may be lowered, and/or the tensile strength may be increased.

An overhead wire has a wire core having a main core and a plurality of auxiliary cores spirally and tightly stranded on the main core, and a conducting layer coating the wire core and having at least one aluminum wire layer. The main core and the auxiliary cores has fiber resin strands formed by fiber filament bundles permeated with resin through moulding, and fiber filaments wound on and completely covering the fiber resin strands such that the fiber resin strand is isolated from the outside, and the at least one aluminum wire layer has a plurality of aluminum wires spirally and tightly stranded on the wire core.

The invention relates to a method for jacketing strandlike elements (10), comprising the method steps of: a) producing or providing a strandlike element (10), b) wrapping the strandlike element (10) with an adhesive tape (12) to give a wrapped strand (14), the adhesive tape (12) comprising as curable adhesive a radiation-curing and/or thermally curing adhesive, c) arranging the wrapped strand (14) in one or more holding elements (16) of a holding arrangement (18) to establish a predetermined shape and to give a shaped strand (20), and d) curing the curable adhesive in the shaped strand (20) by irradiating the adhesive tape (12) with electromagnetic radiation of a wavelength , to give a jacketed strand (22), wherein the one or the two or more holding elements (16) at least in sections are at least partly transmissive for electromagnetic radiation of wavelength , wherein the irradiation of the adhesive tape (12) with the electromagnetic radiation of wavelength takes place at least partly through the one or the two or more holding elements (16).

A reelable support member for downhole operations comprising a plurality of composite strands and a filler matrix between the plurality of composite strands, wherein each composite strand comprises carbon fibres and epoxy; and a method of manufacturing the reelable support member by winding a plurality of composite strands around a core, each composite strand comprising carbon fibres and epoxy, and applying a filler matrix between the plurality of composite strands.

Provided are a high-temperature corrosion-resistant stranded conductor and a method for manufacturing the same, which relate to the field of high-temperature conductor technologies. The stranded conductor is formed by twisting a plurality of composite wire monofilaments, each including a highly conductive core wire made of copper or a copper alloy, and a high-temperature corrosion-resistant alloy cladding the core wire. The stranded conductor is capable of maintaining strength and transmitting a signal under a high-temperature atmospheric environment below 1000 C. for an extended period of time. By employing a plurality of twisted composite wire monofilaments with the above structure, the conductor achieves high strength retention, stable electrical conductivity, and superior oxidation/corrosion resistance when operating long-term under operating conditions of 600 C. to 1000 C. This solves the technical problem of conventional conductors failing in high-temperature environments.