Patent classifications
E21B33/0407
Containment Systems for Sealing a Pass-Through in a Well, and Methods Therefore.
A system formed to provide sealed passage through the wellhead for cables, lines, tubes or the like for down-hole applications. A unitary or split/wrap around hanger, packer or other apparatus having a main seal is formed to receive and provide sealed passage through of power and control cables, lines, conduits, or other threaded components having various configurations and applications. A bowl cap, tubing adapter or other surface component with adapters to allow sealed pass-through utilizing a compression seal. A tubing encapsulated wire for pass-through for power cables or the like as well as a compression fitting with right angle connector is configured to provide a seal at the tubing adapter or the like, as well as a two-piece interlocking F.A.N. cover plate utilizing insertable inner plates to provide various cable penetration and other passage layouts, pressure ratings, and other specifications.
CONTAINMENT SYSTEMS FOR SEALING A PASS-THROUGH IN A WELL, AND METHODS THEREFORE
A system formed to provide sealed passage therethrough for cables, lines, tubes or the like through the wellhead and down-hole applications. The invention provides a unitary or split/wrap around hanger having a main seal formed to receive and provide sealed pass-through of power and control cables, lines, conduits, or other threaded components which have various profiles for various configurations and applications, allowing pass through thereof. The present invention provides hinged side doors formed to engage and support various configuration (via interchangeable inserts) various size cable, line, conduit, etc in the hanger for engaging components threaded therethrough. The present invention teaches permanent as well as temporary applications, can be used in other applications besides hangers (for example, down-hole packers) and is designed to provide a low to medium pressure seal. Also taught is a bowl cap, tubing adapter or other surface component with adapters to allow sealed-pass through of various lines, cable, wires, including a compression seal to cover and seal off the tubing head of the present system, while providing enhanced, sealed pass-through.
SIDE DOOR HANGER SYSTEM FOR SEALING A PASS-THROUGH IN A WELLHEAD, AND METHOD THEREFORE
A hanger system formed to provide sealed passage therethrough for cables, lines, tubes or the like through the wellhead. The preferred embodiment of the invention teaches a unitary or split/wrap around hanger having a main seal formed to receive and provide sealed pass-through of power and control cables, lines, conduits, or other threaded components such as for powering an electric submersible pump (ESP) via electrical cable(s) or the like, while effectively packing off and sealing the well bore. The present invention provides hinged side doors formed to engage and support the cable, line, conduit, etc in the hanger for engaging components threaded therethrough. When the hanger with threaded components is positioned to rest in the bowl of the tubing head, the lower string weight compresses the main seal, providing an effective seal about the threaded components. The present invention teaches permanent as well as temporary applications, and is designed to provide a low to medium pressure seal. Also taught is a bowl cap with compression seal to cover the present system, while providing enhanced, sealed pass-through.
METHOD AND APPARATUS FOR DEPLOYING WELLBORE PUMP ON COILED TUBING
A method for deploying a pump in a wellbore includes coupling the pump to an end of a coiled tubing having upper and lower coiled tubing portions interconnected by a releasable tubing connector, and inserting the pump into the wellbore by extending the coiled tubing therein until the releasable tubing connector is disposed in a suspending arrangement proximate a surface of the wellbore. The method includes uncoupling the upper coiled tubing portion from the releasable connector, wherein the releasable connector, lower coiled tubing portion and pump are retained suspended in the wellbore from the suspending arrangement.
COMMUNICATION THROUGH A HANGER AND WELLHEAD
A system for communicating through a hanger can include an alignment manifold having upper and lower terminals positioned on opposite respective sides of the alignment manifold, each of the upper terminals being in communication with a respective one of the lower terminals. A downhole line connector can be configured to connect to downhole lines, the downhole line connector including terminals aligned with the lower terminals of the alignment manifold. A method of communicating through a hanger can include connecting an alignment manifold to the hanger, the hanger being configured to suspend a tubular from a wellhead assembly, and connecting a downhole line connector to the alignment manifold.
Hanger Assembly With Penetrators
A wellhead assembly has a tubular wellhead body with a wellhead axial bore and a wellhead radial bore. A hanger has a hanger axial bore and a hanger radial port. A tube moving mechanism moves a tube in the wellhead radial bore between a retracted position, an intermediate position and an extended position. The tube has an inner end that is recessed in the wellhead radial bore while in the retracted position, that protrudes a first distance into the wellhead axial bore while in the intermediate position, and which protrudes a second distance into engagement with the hanger radial port while in the extended position. A landing shoulder on the hanger above the radial port lands on an inner portion of the tube while the tube is in the intermediate position.
SUBSEA SYSTEM AND METHODOLOGY UTILIZING PRODUCTION RECEPTACLE STRUCTURE
A technique facilitates deployment of equipment, e.g. an electric submersible pumping system, in a subsea production operation. According to an embodiment, a subsea tree assembly, e.g. a horizontal subsea tree assembly, comprises a spool body housing having a channel extending therethrough. A production receptacle structure is secured within the channel and provides a reduced internal profile for securing wellbore equipment. For example, the internal profile may be constructed to sealably receive a cable hanger used to support power cable by which an electric submersible pumping system may be suspended. The production receptacle structure also may be equipped with a production stab for interfacing with a tubing hanger located below the production receptacle structure.
TELEMETRY CABLE BYPASS
Tubing encapsulated cable is generally difficult to place in the interior of a well. Currently the tubing encapsulated cable must pass through the various valves used isolate the well as it passes into the interior of the wellbore. In a current embodiment of the tubing encapsulated cable is secured, usually by compression fitting, to the lower end of the tubing hanger where the tubing hanger is situated beneath the lowest valve used to isolate the well. The conductors within the tubing encapsulated cable are routed into the tubing hanger to a position where a penetrator passes laterally through the side of the tubing hanger. The penetrator is configured such that there are insulated and conducting portions of the penetrator tip that correspond to the insulated and conducting portions of the conductors within the tubing encapsulated cable. The penetrator is then inserted into the tubing hanger to the point where the insulating and conducting portions of both the penetrator at the conductors within the tubing encapsulate cable are aligned. The penetrator in cooperation with the tubing hanger allows access from the exterior of the well to the interior of the wellbore.
System for continuous electrical well cable feed-through for a wellhead and method of installation
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.
Injection of heating cables with a coiled tubing injector
A method for injecting resistive heating cables into a well or into coiled tubing deployed in a well includes providing a coiled tubing injector above the well, the coiled tubing injector having coiled tubing gripper blocks replaced with cable gripper blocks; guiding one or more cables from respective cable reels into the top of the injector; and using the injector to inject the cables into the well or into the coiled tubing deployed in the well with downward vertical movement of the cables driven by gripping and downward vertical movement of the cable gripper blocks.