ARMORED SUBMERSIBLE Power CABLE
본문
As shown, the well 203 includes a wellhead that may embody a choke (e.g., a choke valve). As proven in the instance of FIG. 1, a well can include a comparatively horizontal portion. FIG. 5 exhibits an example of one of many MLEs 500 appropriate for use in the system 300 of FIG. 3 or optionally a number of other programs (e.g., SAGD, etc.). For example, a barrier layer is usually a layer exterior to a shield (e.g., an insulation shield layer) that may goal to provide additional protection from corrosive downhole gases and fluids. In some embodiments, the insulation shield layer is formed from a hydrogenated nitrile butadiene rubber (HNBR). For example, a metallic shield layer may be a type of barrier layer that goals to provide safety towards migration of gasoline from an exterior area to an inside region. A cushion layer such because the cushion layer 760 (e.g., and/or the cushion layer 762) can provide for improved efficiency of a cable. As an example, a multiphase cable can include colorants such that a number of of the phases (e.g., low voltage armored power cable phase assemblies) differs in colour. As to the cable 700, the cushion layer 760 can assist to keep up integrity of the lead (Pb) barrier layer 750, for each of the assemblies.
For example, a excessive-voltage energy cable may itself pose challenges whatever the atmosphere into which it's placed. The power supply 205 may supply a voltage, for instance, of about 4.16 kV or more. For example, the VSD unit 270 may obtain energy with a voltage of about 4.16 kV and control a motor as a load with a voltage from about zero V to about 4.16 kV. In the example of FIG. 2, the VSD unit 270 could also be a low voltage drive (LVD) unit, a medium voltage drive (MVD) unit or other type of unit (e.g., a excessive voltage drive, which can present a voltage in excess of about 4.16 kV). The SPEEDSTAR™ MVD control circuitry can embody a plug-and-play sine wave output filter, a multilevel PWM inverter output, a 0.95 energy factor, programmable load reduction (e.g., tender-stall operate), velocity management circuitry to maintain constant load or pressure, rocking start (e.g., for caught pumps ensuing from scale, sand, and so on.), a utility power receptacle, an acquisition system for the PHOENIX™ monitoring system, a site communication box to help surveillance and control service, a pace control potentiometer. In the instance of FIG. 2, the system 200 features a network 201, a properly 203 disposed in a geologic setting, a power provide 205, the ESP 210, a controller 230, a motor controller 250 and a variable speed drive (VSD) unit 270. The facility supply 205 might receive power from a energy grid, an onsite generator (e.g., pure gasoline driven turbine), or different source.
As to the ESP 210, it is proven as including a number of cables 211, a pump 212, gasoline dealing with options 213, a pump intake 214, a motor 215, a number of sensors 216 (e.g., temperature, pressure, current leakage, vibration, and so forth.) and optionally a protector 217. The motor 215 can be a submersible electric motor that is operatively coupled to the pump 212 to drive the pump 212 for motion of fluid (e.g., to pump fluid). For this reason, defending the lead sheath throughout the next manufacturing course of and handling throughout transport and installation is helpful. The excessive barrier properties and malleability of metallic lead (Pb) are inclined to make it a suitable candidate for downhole cable parts. This cable is utilized in ships,petrol platforms and offshore laying VFD apparatus. As an example, an ESP cable (e.g., ESP energy cable) may be rated at, for instance, about 3 kV, about four kV, or about 5 kV (e.g., or more) and may have a kind issue that is flat or spherical. For example, the UNICONN™ motor controller can interface with the PHOENIX™ monitoring system, for instance, to entry stress, temperature and vibration knowledge and varied safety parameters as well as to offer direct current energy to downhole sensors.
Where tools is placed inside a geologic environment, longevity of the tools can rely on traits of the environment and, for instance, duration of use of the gear in addition to perform of the gear. For instance, matter may be soluble or insoluble in an atmosphere and, for instance, soluble in a single environment and considerably insoluble in one other. For instance, the place a period of time may be of the order of many years, equipment that is meant to last for such a period of time could be constructed with supplies that can endure environmental circumstances imposed thereon, whether imposed by an setting or environments and/or a number of functions of the equipment itself. For example, a metallic shield layer may be formed from various metallic materials together with, however not restricted to: copper, aluminum, lead, and alloys thereof. A pelletized materials or pelletized materials can be heated and deformed by way of extrusion (e.g., upon exposure to extrusion heat and pressure). In the example of FIG. 2, the controller 230 could access a number of of the PIPESIM™ framework 284, the ECLIPSE™ framework 286 marketed by Schlumberger Limited (Houston, Tex.) and the PETREL™ framework 288 marketed by Schlumberger Limited (Houston, Tex.) (e.g., and optionally the OCEAN™ framework marketed by Schlumberger Limited (Houston, Tex.)).