Abstract: The present disclosure provides a dis-connectable wellhead hanger arrangement permitting a pig tail set of a electrical conductors to be inserted within the wellhead hanger arrangement which seals against the wellhead hanger upon separation of an electrical power cable. If the power cable separates from the production tubing for any reason, the compressively fit plugs disconnect the power cable from the pathway leaving the electrical mandrel sealed within the wellhead hanger, thereby sealing the wellhead hanger from loss of fluid after separation.

Abstract: An epoxy sealant confined around a transition seal body system for a down hole electric cable transition from a protected cable to separate conductors of a three-phase electrical service provides a vapor and pressure seal, preventing premature failure from temperature and pressure changes in the wellbore. The use of epoxy to completely surround the transition seal body within the penetrator mandrel permits field installation of continuous electrical conductors from a wellbore through a pressure sealing wellhead to the surface.

Abstract: A connector permitting the surface splicing of two electric power cables in adverse weather conditions provides a sufficient dielectric cover to prevent shorting or grounding out of the connection. A dielectric tube or sleeve having means for either a threaded or snapping connection with a cap, which is fitted over one or two electric power cables. The body after being filled with dielectric grease or silicone provides a radiused surface at each end to permit the cables to be inserted or removed quickly and efficiently. The capped end or ends can then be further weatherproofed with an additional exterior cap over the tube.

Abstract: An electrical interconnect system which allows electrical service to be provided to an ESP suspended on coiled tubing without exiting the wellhead at the top of the well head structure, with three aligned plugs into which is inserted an exterior plug providing each leg of the electrical service to the ESP within the well.

Abstract: The present disclosure provides a dis-connectable wellhead hanger arrangement permitting a pig tail set of a electrical conductors to be inserted within the wellhead hanger arrangement which seals against the wellhead hanger upon separation of an electrical power cable. If the power cable separates from the production tubing for any reason, the compressively fit plugs disconnect the power cable from the pathway leaving the electrical mandrel sealed within the wellhead hanger, thereby sealing the wellhead hanger from loss of fluid after separation.

Abstract: An epoxy sealant combined with a transition seal body system for a down hole electric cable transition from a protected cable to separate conductors of three-phase electrical service provides an effective vapor and pressure seal preventing premature failure from temperature and pressure changes in the well bore. The use of epoxy completely surrounding the transition seal body within the penetrator mandrel permits safe and effective field installation of continuous electrical conductors from a wellbore through a pressure sealing wellhead to the surface that is easier to install and more protective than previous mechanical connections.

Abstract: A triple-sealed ESP connection provides a first seal at the upper end of a coiled tubing to limit the migration of vapors from the interior of the coiled tubing into the annulus at a wellhead and a second seal to prevent migration of the vapors from the annulus of the wellhead to the exterior surface of the wellhead. This triple-sealed arrangement can be accomplished by providing a threaded connection on an upper end of the coiled tubing to which is attached the sealable shroud for the electrical conductor splice which sealably connects with the wellhead thereby providing a sealed upper end to the coiled tubing and a second seal on the shroud and a seal at the wellhead. The second seal in both cases is the seal that can be either a metal-to-metal or other type of compressive seal arrangement or a sealed tubing arrangement.

Abstract: The connector arrangement attaches the electrical conductors of a standard electrical submersible pump (ESP) cable to a mineral insulated (MI) resistance heater cable for use in oil and gas wells by conductively joining one or more of the electrical conductors of the ESP cable to a cold lead of the MI heater cable within an insulated sleeve covered and sealed within a protective cover. The connector thereby allows the MI heater cable and ESP pump cable to be joined to production tubing and then lowered into the well bore to the desired location.

Abstract: A splicing system that establishes an electrical union between two segments of power cable having internal conductor wires. The splicing system is resistant to electrical failures and the harsh environment existing in subterranean environments during all phases of the hydrocarbon extraction process. The splicing arrangements comprise a protective housing, insulating sleeve and crimp splice working in cooperation to create a sealed power cable connection.

Abstract: A connector for electrically and mechanically connecting insulated conductor wires encapsulated in protective tubing. Embodiments of the connector provide a protective outer sheathing that circumscribes the conductive and insulating structures within the connector. The connector is formed with a plurality of tubular fitting assemblies for securely attaching the connector to down hole electrical power cables. The connector is also formed with an internal insulating boot having an internal passage adapted to surround the conductive elements of the connector to provide a reliable down hole electrical connector.

Abstract: An apparatus for conducting alternating current through a well barrier made substantially entirely of ferromagnetic material includes at least one non-ferromagnetic electrically conductive rigid tube extending through its own separate passageway in the well barrier. A single electrical conductor carrying the alternating current, extending through the well barrier, is enclosed by each rigid tube. The electrical conductor includes insulation electrically isolating the rigid tube from the conductor.

Abstract: A method and apparatus for manufacturing a continuous metal tube having a plurality of electrical conductors disposed therein, by using a spring member to depress the electrical conductors while a flat metal strip is formed into a tubular member and welded to enclose the electrical conductors. The spring member functions to protect the electrical conductors from heat damage. The welding occurs completely downstream of the spring member in order to avoid excessive heat buildup in the spring member.