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As such, where well fluid contacts an EPDM insulation layer, injury could occur to the insulation as a result of swelling of the EPDM (e.g., which can apply stress that may mechanically injury a number of features of a cable). As an example, a cable could also be utilized as a power cable and deployment cable for a instrument. For example, where an environment consists of hydrogen sulfide (H2S), carbon dioxide (CO2), and so forth., the atmosphere could also be corrosive to sure materials. For REDALEAD™ cables, metallic lead (Pb) is extruded instantly on high of the insulation (see, e.g., the insulation 430 and/or the insulation shield 440) to help prevent diffusion of fuel into the insulation (e.g., low voltage armored power cable one or more corrosive gases). For example, a cable that includes an electrical conductor can embrace insulation that electrically insulates a minimum of a portion of the electrical conductor, for instance, along a size of the electrical conductor, which could also be in the form of a wire (e.g., solid, stranded, and so on.), and can embody a gas barrier layer disposed concerning the insulation layer (e.g., immediately or not directly).

For instance, a high-voltage power cable may itself pose challenges whatever the atmosphere into which it is placed. For instance, a cushion layer can include a material such as carbon black. An armor layer could also be applied over the cushion layer, immediately or not directly. Where equipment is to endure in an surroundings over a substantial period of time, uncertainty could arise in a number of factors that could impression integrity or expected lifetime of the equipment. Such a cable can embody a conductor, an insulation layer over the conductor, a barrier layer atop the insulation layer, and a protective layer including XLPE over the barrier layer. In such an example, the additives could impart properties that facilitate manufacturing of a cable (e.g., or an assembly for a cable) before a desired amount of polyethylene crosslink has occurred publish-extrusion. As an example, the processing tools 2405 can deposit insulation as the primary material 2412 and may deposit a lead (Pb) barrier material as the second material 2414. The third material 2416 can include polyethylene optionally combined with polypropylene and/or talc. An extruded cushion layer can provide improved lead (Pb) barrier crush resistance from the armoring process when compared to a braided approach that makes use of nylon or polyethylene terephthalate string.

As to different examples, nylon or glass fiber tapes and braids could also be applied. In such an example, tools 147 might then assist with lifting the resource in the nicely 143 to, for example, a floor facility (e.g., via a wellhead, etc.). For instance, the geologic environment 140 could also be outfitted with gear 145, which could also be, for instance, steam assisted gravity drainage (SAGD) gear for injecting steam for enhancing extraction of a resource from a reservoir. SAGD is a method that includes subterranean delivery of steam to reinforce move of heavy oil, bitumen, and so forth. SAGD might be utilized for Enhanced Oil Recovery (EOR), which is also called tertiary restoration as a result of it changes properties of oil in situ. For example, an surroundings could have its stress and/or temperature elevated, for instance, via use of tools, strategies, and so forth. For example, a SAGD operation could elevate temperature of an surroundings (e.g., by a hundred degrees C. or extra).

A so-referred to as HPHT surroundings might embody pressures as much as about 138 MPa (e.g., about 20,000 psi) and temperatures as much as about 205 degrees C. (e.g., about 400 levels F.), a so-referred to as ultra-HPHT setting could include pressures as much as about 241 MPa (e.g., about 35,000 psi) and temperatures up to about 260 degrees C. (e.g., about 500 levels F.) and a so-known as HPHT-hc setting might embrace pressures higher than about 241 MPa (e.g., about 35,000 psi) and temperatures higher than about 260 levels C. (e.g., about 500 degrees F.). In such an example, the water may also serve to cool a burner wall or partitions (e.g., by flowing in a passageway or passageways inside a wall). In such an instance, by way of use of the cushion layer, a discount will be made within the specs as to a lead (Pb) wall thickness, which can lead to a lower in cable value and weight. For instance, the metallic shield 750 can have a wall thickness that is lower than approximately 1 mm. EPDM generally is a byproduct of petroleum the place EPDM and petroleum are largely composed of nonpolar molecules such that they are miscible (e.g., oil could permeate into EPDM and trigger it to swell).