Abstract: A technique facilitates the reliable connection of cables in subsea environments. A cablehead system is designed to reliably connect cables to subsea components while providing long term protection of the connection in potentially harsh, subsea environments. The cablehead system comprises a cable clamp housing which may be coupled to a bulkhead assembly by a cavity housing which provides space for routing of internal communication lines. One or more additional protective components are incorporated into the cablehead system to ensure a reliable connection and to further protect the internal communication lines from exposure to the surrounding environment.

Abstract: A technique facilitates the reliable connection of cables in subsea environments. A cablehead system is designed to reliably connect cables to subsea components while providing long term protection of the connection in potentially harsh, subsea environments. The cablehead system comprises a cable clamp housing which may be coupled to a bulkhead assembly by a cavity housing which provides space for routing of internal communication lines. One or more additional protective components are incorporated into the cablehead system to ensure a reliable connection and to further protect the internal communication lines from exposure to the surrounding environment.

Abstract: A tubing hanger and method for reducing loads and stresses on sealing boundaries in a tubing hanger is provided. The tubing hanger has an inner cavity that is sealed with respect to an external well volume present in for example the surrounding tree architecture and wellhead. A control line extends through the inner cavity to communicate with downhole equipment. A pressure compensator is configured to adjust pressure differential between the inner cavity and the external well volume.

Abstract: There is disclosed a connection device for an underwater service line, the connection device comprising: a male connector having slidably interengageable first and second pieces, the first piece having a rearwardly facing surface and being slidable between a retracted position and an extended position; and a female connector connectable with the male connector and having a body—comprising a bore to receive the male connector, the female connector comprising an engagement member engageable with the first piece and movable from an extended position, in which it extends into the bore, to a retracted position, in which it permits forward displacement of the first piece, a biasing means biasing the engagement member towards its extended position, a forward end of the second piece being configured to allow the engagement member to extend into the bore, giving rise to a connected condition, wherein: in the connected condition, the forward end of the second piece is engageable with the engagement member upon retracti

Abstract: There is disclosed a contact pin assembly for a high voltage electrical connection, the contact pin assembly comprising: an electrically-conductive outer member which is supportable from a support member, the outer member having a bore extending therethrough, the bore defining a smooth inner face of the outer member and being divergent towards opposite ends of the outer member; a contact pin, ends of which are arranged to be connected directly or indirectly to cables, the contact pin extending through the bore and having a profiled portion which defines a smooth outer face of the contact pin and which is divergent towards opposite ends of the contact pin, the contact pin being concentric with the bore; an electrically-conductive layer provided adjacent the inner face, the electrically-conductive layer being in electrical communication with the outer member and conforming with the profile of the inner face; an annular space between the profiled portion and the electrically-conductive layer; electrical insul

Abstract: An electrical connector is provided for use in establishing watertight connections, such as for subsea applications. The connector comprises a receptacle component (100) that includes a fluted, insulated male contact pin (52) with an isolation tube (5) substantially surrounding the insulated male contact pin over at least part of its length and containing oil therein, and a plug component (200) that includes a sliding contact pin assembly (19) and a release mechanism (40). The release mechanism (40) enables linear tolerance sliding action between the receptacle component and the plug component after establishing electrical communication between the mating components. The sliding contact pin assembly further includes a shuttle pin (24) that is urged rearwardly during mating to operate the release mechanism, thereby allowing the male contact pin and front contact band (20) to move relative to the central spring support rod (30) of the plug component.

Abstract: There is disclosed a contact pin assembly for a high voltage electrical connection, the contact pin assembly comprising: an electrically-conductive outer member which is supportable from a support member, the outer member having a bore extending therethrough, the bore defining a smooth inner face of the outer member and being divergent towards opposite ends of the outer member; a contact pin, ends of which are arranged to be connected directly or indirectly to cables, the contact pin extending through the bore and having a profiled portion which defines a smooth outer face of the contact pin and which is divergent towards opposite ends of the contact pin, the contact pin being concentric with the bore; an electrically-conductive layer provided adjacent the inner face, the electrically-conductive layer being in electrical communication with the outer member and conforming with the profile of the inner face; an annular space between the profiled portion and the electrically-conductive layer; electrical insul

Abstract: There is disclosed a contact pin assembly for a high voltage electrical connection, the contact pin assembly comprising: an electrically-conductive outer member which is supportable from a support member, the outer member having a bore extending therethrough, the bore defining a smooth inner face of the outer member and being divergent towards opposite ends of the outer member; a contact pin, ends of which are arranged to be connected directly or indirectly to cables, the contact pin extending through the bore and having a profiled portion which defines a smooth outer face of the contact pin and which is divergent towards opposite ends of the contact pin, the contact pin being concentric with the bore; an electrically-conductive layer provided adjacent the inner face, the electrically-conductive layer being in electrical communication with the outer member and conforming with the profile of the inner face; an annular space between the profiled portion and the electrically-conductive layer; electrical insulati

Abstract: A tube cutter apparatus comprises a body that is generally cylindrical in shape and has a bore through which a tube to be cut is inserted. The tube cutter apparatus may further comprise a coupling restraining the tube and a bearing tube defining at least a portion of the bore. A revolving unit may be provided comprising a retaining flange. The revolving unit may further comprise a rotary tool holder including a cutting tool configured to cut the tube. An end flange, the retaining flange and the rotary tool holder may be coupled together to revolve as a unit. The tube cutting apparatus of the present invention may further include devices for setting the depth of the cut of the cutting tool and for setting the point at which the cutting operation will stop.

Abstract: A connector for a connection assembly for providing electrical power to a submersible electrical component in a deepwater environment, such as a subsea well, includes a ceramic body having a metallized inner passageway. A conductive contact extends through the passageway and has a contact end and a cable connecting end. A conductive sleeve is disposed about an outer surface of the ceramic body. The ceramic body is retained within a connector housing that has an interface chamber and a cable retaining chamber. The contact end of the connector contact is disposed within the interface chamber, and the cable connecting end of the contact is disposed within the cable retaining chamber. The sleeve is attached to the housing to provide a seal between the interface chamber and the cable retaining chamber. When the connector is engaged with a complementary connector, a Faraday cage is provided within the interface chamber to manage the electrical field about the connection interface between the connectors.

Abstract: A tubing hanger and method for reducing loads and stresses on sealing boundaries in a tubing hanger is provided. The tubing hanger has an inner cavity that is sealed with respect to an external well volume present in for example the surrounding tree architecture and wellhead. A control line extends through the inner cavity to communicate with downhole equipment. A pressure compensator is configured to adjust pressure differential between the inner cavity and the external well volume.

Abstract: There is disclosed a contact pin assembly for a high voltage electrical connection, the contact pin assembly comprising: an electrically-conductive outer member which is supportable from a support member, the outer member having a bore extending therethrough, the bore defining a smooth inner face of the outer member and being divergent towards opposite ends of the outer member; a contact pin, ends of which are arranged to be connected directly or indirectly to cables, the contact pin extending through the bore and having a profiled portion which defines a smooth outer face of the contact pin and which is divergent towards opposite ends of the contact pin, the contact pin being concentric with the bore; an electrically-conductive layer provided adjacent the inner face, the electrically-conductive layer being in electrical communication with the outer member and conforming with the profile of the inner face; an annular space between the profiled portion and the electrically-conductive layer; electrical insulati

Abstract: There is disclosed a connection device for an underwater service line, the connection device comprising: a male connector having slidably interengageable first and second pieces, the first piece having a rearwardly facing surface and being slidable between a retracted position and an extended position; and a female connector connectable with the male connector and having a body—comprising a bore to receive the male connector, the female connector comprising an engagement member engageable with the first piece and movable from an extended position, in which it extends into the bore, to a retracted position, in which it permits forward displacement of the first piece, a biasing means biasing the engagement member towards its extended position, a forward end of the second piece being configured to allow the engagement member to extend into the bore, giving rise to a connected condition, wherein: in the connected condition, the forward end of the second piece is engageable with the engagement member upon retracti

Abstract: An electrical connector for use in subsea applications, the connector comprising a receptacle component comprising a fluted, insulated male contact pin, and a plug component comprising a contact assembly. On engagement of the receptacle component and plug component in use, a watertight electrical connection is formed between the male contact pin and the contact assembly. The receptacle component further comprises an isolation tube substantially surrounding the insulated male contact pin over at least part of its length and containing oil therein, in use.

Abstract: A connector for a connection assembly for providing electrical power to a submersible electrical component in a deepwater environment, such as a subsea well, includes a ceramic body having a metallized inner passageway. A conductive contact extends through the passageway and has a contact end and a cable connecting end. A conductive sleeve is disposed about an outer surface of the ceramic body. The ceramic body is retained within a connector housing that has an interface chamber and a cable retaining chamber. The contact end of the connector contact is disposed within the interface chamber, and the cable connecting end of the contact is disposed within the cable retaining chamber. The sleeve is attached to the housing to provide a seal between the interface chamber and the cable retaining chamber. When the connector is engaged with a complementary connector, a Faraday cage is provided within the interface chamber to manage the electrical field about the connection interface between the connectors.

Abstract: An electrical connector, for use in underwater applications. The connector comprises a male component having a least one contact pin and a female component having a contact module. The male and female components engage, in use, to form a watertight electrical connection between the at least one contact pin and the contact module. The female component further comprises a biassing module, which comprises a first biassing means and a second biassing means. The first biassing means is located radially within the second biassing means with respect to the longitudinal axis of the female component. The first biassing means such that the biassing strength of the biassing module can be tailored to control the insertion rate of the male connector during coupling of the male component to the female component accommodating large variations in axial engagement length.

Abstract: A sealing system for use with a sub-sea connector. The sealing system comprises an actuation sleeve retaining a ball valve within the exposed end of the sleeve and a valve control system connecting the ball valve to an actuation member and applying a force to the ball valve such that it is urged into a closed position. A biassing means controls the sealing force of the ball valve.

Abstract: An electrical connector and method of making the electrical connection are disclosed for use in particularly arduous conditions, such as down hole oil production applications. The invention provides high electrical integrity with an ability to accommodate steady and/or fluctuating mechanical forces placed via the cable into the connector. Synergy between the mechanical and electrical aspects of the design is taught in which an insulating member, fitted with annular upstands, co-operates with a mechanically soft, essentially incompressible, insulating substance (gel) to cause vibrations in the cable to be dissipated over a length of the insulated cores inside the connector rather that at a single point where it would cause the core to fracture. In addition, annular collars of the gel are provided between the insulating member and the crimped pin-core connections and between the annular upstands and insulated cores to give further cushioning.

Abstract: An electrical connector, for use in underwater applications. The connector comprises a male component having a least one contact pin and a female component having a contact module. The male and female components engage, in use, to form a watertight electrical connection between the at least one contact pin and the contact module. The female component further comprises a biassing module, which comprises a first biassing means and a second biassing means. The first biassing means is located radially within the second biassing means with respect to the longitudinal axis of the female component. The first biassing means such that the biassing strength of the biassing module can be tailored to control the insertion rate of the male connector during coupling of the male component to the female component accommodating large variations in axial engagement length.

Abstract: A sealing system for use with a sub-sea connector. The sealing system comprises an actuation sleeve retaining a ball valve within the exposed end of the sleeve and a valve control system connecting the ball valve to an actuation member and applying a force to the ball valve such that it is urged into a closed position. A biassing means controls the sealing force of the ball valve.