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As an example, locking could happen as a result of gasoline in a number of pump phases, bearing issues, particulate matter, and so forth. As an example, a cable might carry current to power a multiphase electric motor or different piece of gear (e.g., downhole tools powerable by a cable). For instance, a cable can include multiple conductors where each conductor can carry present of a section of a multiphase energy provide for a multiphase electric motor. As one instance, the cushion layer 760 may be formed of a material with a shape and measurement that helps to maintain the shape and measurement of the metallic shield 750. In such an instance, the shapes may be substantially circular. Such cushioning may help to preserve the integrity of the metallic shield 750 by way of one or more mechanisms. In some embodiments, a energy cable may embrace one or more conductors, an EPDM insulation layer disposed over each conductor, and a lead (Pb) barrier layer disposed over the EPDM insulated conductor(s).

In some embodiments, one or more compatibilizers could also be used to assist make sure that cross-linking happens at an interface between an insulation layer (e.g., constructed from EPDM, and so on.) and an insulation shield layer. For instance, the cushion layer 760 will be formed as a tube defined a minimum of in part by a wall thickness and an inside cross-section dimension (e.g., an inner diameter) and/or an outer cross-part dimension (e.g., an outer diameter). In FIG. 7, the example cable seven hundred can embrace EPDM insulation as the insulation 730, which might have a wall thickness of roughly 1.6 mm (e.g., approximately 0.065 inch), can embody a lead (Pb) shield because the metallic shield 750, which may have a wall thickness of approximately 0.6 mm (e.g., approximately 0.025 inch), can include crosslinked polyethylene as the cushion layer 760 and may embrace metallic armor (e.g., galvanized) because the armor layer 780, which might have a wall thickness of roughly 0.4 mm (e.g., approximately 0.015 inch).

In some embodiments, a metallic shield layer may serve to electrically isolate the phases of the cable from one another. For instance, a cable may be formed with phases split out from each other where every section is encased in strong metallic tubing. For example, a cushion layer can include a colorant (e.g., for colour coding phases of a multiphase energy cable). As mentioned, the form of a cushion layer may be considerably circular or of another shape equivalent to, for example, considerably pie formed where it may encompass a substantially pie shaped metallic barrier layer (e.g., a lead (Pb) barrier layer). For instance, a metallic shield layer may be applied over an insulation shield layer. For instance, a power cable for use with an electric submersible pumping system can embody a conductor, an insulation layer over the conductor, a barrier layer atop the insulation layer, and a protective layer that features XLPE over the barrier layer. In some embodiments, a cable could use EPDM and/or nitrile primarily based elastomer compounds in a jacketing layer.

FIG. 7 exhibits an instance of a energy cable 700, an instance of a power cable 701, and an example of a power cable 702 the place the ability cable 700, 701 and/or 702 could also be suitable to be used in the system 300 of FIG. 3 or optionally in a number of other systems (e.g., SAGD, and so forth.). Table 1 reveals the values of crosslink density for fully cured samples calculated from Eqn. FIG. 12 shows a collection of photographs for two totally different cables 1200 (left) and seven-hundred (proper). In FIG. 7, the ability cable seven-hundred includes three conductor assemblies the place each meeting includes a conductor 710, insulation 730, a metallic shield 750, a cushion layer 760 and an armor layer 780. In FIG. 7, the facility cable seven hundred is configured with a flat geometry; whereas, the facility cables 701 and 702 are configured with a spherical geometry where conductors are substantially pie formed in their cross-part. For ESP cables operated in one or more of corrosive, gassy or hot environments, the performance of a lead (Pb) barrier layer helps to assure long run times. As defined, conductor and/or assembly geometries can be grouped the place geometry of one or more cushion layers could also be appropriately formed to help preserve integrity of one or more metallic shields, which can operate as gasoline boundaries that may also help to hinder permeation of gas (e.g., H2S, and so forth.) towards a conductor of a power cable.