Abstract: A power umbilical for transfer of large amounts of electric power, fluids and electric current/signals from the sea surface to equipment deployed on the sea bed, in particular in deep waters includes a number of electric power conducting cables, pipes and electric conductors/wires collected in a bundle, a filler material lying at least partly around and between the pipes, cables and the conductors/wires, and a protective sheath enclosing the pipes, cables conductors/wires and filler material. The load carrying elements of the power umbilical are light weighted rods of composite material that can either be collected in bundles or appear individually or in a combination thereof.

Abstract: An umbilical for transfer of fluids and electric current/signals between the sea surface and equipment deployed on the sea bed, in particular in deep waters, is disclosed. The umbilical comprises a number of pipes and electric conductors/wires collected in a bundle, a filler material lying at least partly around and between the pipes and the conductors/wires, and a protective sheath enclosing the pipes, conductors/wires and filler material. The load carrying elements of the umbilical are light weighted rods of composite material that can either be collected in bundles or appear individually or in a combination thereof.

Abstract: A power umbilical for transfer of large amounts of electric power, fluids and electric current/signals from the sea surface to equipment deployed on the sea bed, in particular in deep waters, is disclosed. The power umbilical comprises a number of electric power conducting cables (5), pipes (4) and electric conductors/wires (6, 6) collected in a bundle, a filler material (10, 2, 3, 3?) lying at least partly around and between the pipes (4), cables (5) and the conductors/wires (6, 6), and a protective sheath (1) enclosing the pipes, cables conductors/wires and filler material. The load carrying elements (7) of the power umbilical are light weighted rods (7) of composite material that can either be collected in bundles or appear individually or in a combination thereof.

Abstract: A connector (10) for releasable connection between an anchorage in the form of a female part (1) arranged on a floating means and a male part (2) formed at the end of a retrievable umbilical (3) provided with a bend stiffener (4) is disclosed. The male part (2) comprises a mandrel body (5) having a pulling head (6) for connection to a pulling means at one end and the umbilical (3) at the other end. The male part (2) comprises a sleeve formed body (7) that is fixed to the mandrel body (5) by shearable elements (8). The bend stiffener (4) is fixed directly to the sleeve formed body (7) and is designed for abutment against and parking together with the bend stiffener (4) within the female part (1) while the remaining part of the male part (2) including the umbilical (3) is designed to be pulled further up through the female part (1) for fluid communication and connection on a floating means or a vessel.

Abstract: A composite pipe having at least one metal end piece (2, 3) with a free end and a non-metal tubular component (10). The tubular component (10) is coupled to the at least one end piece (2, 3) opposite of the free end of the end piece (2, 3), by means of at least one peripherally extending, axially acting groove (6, 7) that the non-metallic tubular component (10) engages. The non-metallic tubular component (10) generally comprises axial fibers (11) extending down into the at least one groove (6, 7). The groove (6, 7) has a bottom (13) and a flank (14), which flank is located furthest away from the free end of the end piece (2, 3). Between the flank (14) and the axial fibers (11) there is provided an intermediate layer (15). Also described is a method of manufacturing such a composite pipe.

Abstract: A light weight lifting tool (10) for lowering and retrieving subsea equipment to and from the sea bed is disclosed. The equipment includes an upper coupling part in the form of a connector spool piece (15) having at least one circumferential ring groove (16) for use in making engagement with the lifting tool (10). The lifting tool (10) includes a housing (1) designed to enclose and receive the connector spool piece (15). The lifting tool (10) further includes a number of latch segments (8) having at least one radially inwards directed projection (8?) designed for engagement with the at least one ring groove (16), and an activating device (6) arranged to bring the latch segments (8) in and out of engagement with the at least one ring groove (16) by operation of the activating device (6).

Abstract: An umbilical for transfer of fluids and electric current/signals between the sea surface and equipment deployed on the sea bed, in particular in deep waters, is disclosed. The umbilical comprises a number of pipes (4, 4?) and electric conductors/wires (6, 6?) collected in a bundle, a filler material (10, 2, 3, 3?) lying at least partly around and between the pipes (4, 4?) and the conductors/wires (6, 6?), and a protective sheath (1) enclosing the pipes, conductors/wires and filler material. The load carrying elements (7) of the umbilical are light weighted rods (7?) of composite material that can either be collected in bundles or appear individually or in a combination thereof.

Abstract: An electrically operated hydraulic valve comprises a valve assembly that provides a common valve passageway, an inlet port, an outlet port and a return port connected to the passageway and an axially movable valve device which allows in a first position fluid flow between the outlet port and the return port while closing the inlet and in a second position, axially displaced from the first position, fluid flow between the inlet port and the outlet port while closing the return port. A spring provides a restoring force urging the valve device to its first position. An electrically operated actuator coupled to the valve device comprises a permanent magnet and a cooperating electrical coil having an associated magnetic core, one or other of the magnet and the coil constituting a stator and the other constituting an armature which is coupled to the valve device to move it from the first position to the second position.

Abstract: A method for protection of compressor modules against undesirable influx of contaminated gas, comprising a pressure housing (3) which by means of one of more sealing elements (4) is generally divided into a first compartment (8) equipped with a compressor (2) and a second compartment (7) equipped with a gas-filled motor (1), the compressor and the motor being drivably connected to each other by at least one shaft (9), is distinguished by protecting the second compartment (7) with motor (1) against direct influx of contaminated gas from the first compartment (8) with compressor (2) by means of compressed gas that is supplied from a withdrawal point (13) at the first or intermediate stage of the compressor, or from the compressor outlet (16), and by introducing the compressed gas directly into the seal (4) or in between two or more seals so as to flow through the at least one seal (4) back to the first compartment (8). The invention also relates to an apparatus for use in connection with the method.

Abstract: An apparatus for preventing seawater from penetrating into a compressor module during lowering to or retrieval from a compression plant on the seabed, with optional discharge of residual production fluids, as for instance hydrocarbons, from the compressor module prior to retrieval, wherein the compressor module comprises an electric motor (1) and a compressor (2) which are respectively connected via at least one shaft (8) and are arranged in a common pressure shell (3), an inlet pipe (5) and an outlet pipe (6) to and from the compressor module which respectively are provided with an isolation valve (7, 7?).

Abstract: A system to re-inject drill cuttings slurry into a well formation for the storage of the cuttings. The system may include a pressure containing conduit that creates a flow path to an annulus within the well formation. The system may include an injection inlet, a drilling guide base, an injection adapter having a circular gallery, an injection mandrel having at least one injection port, and an annulus created between the injection mandrel and an inner casing. The slurry may be injected into the annulus while still drilling the wellbore. The location of the injection inlet may be positioned relative to the circular gallery of the injection adapter such that a cyclone effect is created within gallery minimizing erosion due to the flow of the slurry. The injection mandrel may be adapted to allow the passage of drilling mud to a downhole drilling location while injecting slurry into the casing annulus.

Abstract: A system for cleaning compressors (1) that are situated at a difficultly accessible location, e.g., on or near the seabed or downhole in a well bore, comprises a cleaning liquid line (8) extending between a readily accessible liquid source and the compressor. The liquid source may be a line (7) for supplying hydrate inhibitor, anti foam chemicals, barrier liquid, demulsifier or other types of chemicals to a subsea production or processing activity. Alteratively, the liquid source can be an accumulator tank (13) situated in the vicinity of the compressor.

Abstract: A connector (10) for releasable connection between an anchorage in the form of a female part (1) arranged on a floating means and a male part (2) formed at the end of a retrievable umbilical (3) provided with a bend stiffener (4) is disclosed. The male part (2) comprises a mandrel body (5) having a pulling head (6) for connection to a pulling means at one end and the umbilical (3) at the other end. The male part (2) comprises a sleeve formed body (7) that is fixed to the mandrel body (5) by shearable elements (8). The bend stiffener (4) is fixed directly to the sleeve formed body (7) and is designed for abutment against and parking together with the bend stiffener (4) within the female part (1) while the remaining part of the male part (2) including the umbilical (3) is designed to be pulled further up through the female part (1) for fluid communication and connection on a floating means or a vessel.

Abstract: A marine, flexible, integrated umbilical (for control, injection or production) including a number of fluid flow pipes (7; 7?; 7?) and optionally electric conductors (8; 8?), and a filler material between the fluid flow pipes and the possible electric conductors. The filler material includes several inner and outer channel elements (2, 3, 4; 6, 9; 6?, 9?) being twisted about the longitudinal axis of the umbilical and assembled such that they form channels (11; 11?; 11?) for receiving the fluid flow pipes and the possible electric conductors. An outer sheath (1; 1?; 1?) of suitable material is present outside the filler material. An armouring and weight applying band is wrapped around the filler material and is laid between the filler material and the outer sheath (1; 1?; 1?) in the finished umbilical (10).

Abstract: An apparatus for controlling the supply of barrier gas to a compressor module includes a pressure housing containing an electric motor which via a shaft is drivably connected to a compressor. The shaft is supported by magnetic bearings and at least one axial seal around the shaft which divides the pressure housing into first and second compartments including the motor and compressor, respectively. The second compartment has fluid inlet and outlet. A line is fluid-connected to the first compartment for barrier gas from a reservoir, with a flow restriction element between the reservoir and first compartment. The apparatus facilitates a method for controlling the supply of barrier gas based on gas velocity through the seal and pressure in the second compartment. An overpressure can be set in the reservoir. A controlled supply of barrier gas to at least the first compartment is effected via flow restriction in the feed pipe.

Abstract: A composite pipe having at least one metal end piece (2, 3) with a free end and a non-metal tubular component (10). The tubular component (10) is coupled to the at least one end piece (2, 3) opposite of the free end of the end piece (2, 3), by means of at least one peripherally extending, axially acting groove (6, 7) that the non-metallic tubular component (10) engages. The non-metallic tubular component (10) generally comprises axial fibres (11) extending down into the at least one groove (6, 7). The groove (6, 7) has a bottom (13) and a flank (14), which flank is located furthest away from the free end of the end piece (2, 3). Between the flank (14) and the axial fibres (11) there is provided an intermediate layer (15). Also described is a method of manufacturing such a composite pipe.

Abstract: A coupling switches control fluid from a tubing hanger to a downhole completion of a subsea well. The coupling, located between a tubing hanging running tool and a downhole completion, includes a coupling body and a tubing hanger. A hydraulic poppet switches control fluid flow from a first and second flow path. The hydraulic poppet includes an isolation sleeve for opening and closing a first and second inlet port. At least two perimeter seals provide fluid isolation for the first flow path. A retainer seal seals the coupling body against the second inlet port. A retaining sleeve holds the coupling body against the tubing hanger. A first and second circumferential seal are located on opposite ends between the coupling body and tubing hanger. The hydraulic poppet is adapted to move perimeter seals and the retainer seal to open and close the first and second inlet ports.

Abstract: A power umbilical for transfer of large amounts of electric power, fluids and electric current/signals from the sea surface to equipment deployed on the sea bed, in particular in deep waters, is disclosed. The power umbilical comprises a number of electric power conducting cables (5), pipes (4) and electric conductors/wires (6, 6) collected in a bundle, a filler material (10, 2, 3, 3?) lying at least partly around and between the pipes (4), cables (5) and the conductors/wires (6, 6), and a protective sheath (1) enclosing the pipes, cables conductors/wires and filler material. The load carrying elements (7) of the power umbilical are light weighted rods (7) of composite material that can either be collected in bundles or appear individually or in a combination thereof.

Abstract: A reciprocable connector assembly for coupling a service line through a path in a wellhead and hangar wall, the assembly comprising: connector for coupling with a corresponding connector disposed in the hangar wall; a shuttle carrying said connector between a first position in which the connector is not coupled to the corresponding connector and a second position in which it is coupled, at least one service line connected at one end to the connector and wound in a plurality of turns to extend or retract with respect to one another as the shuttle moves between the first and second positions and a support for constraining movement of the turns.

Abstract: A method utilizes the energy of water that flows out from a high-pressure reservoir. Water and hydrocarbons are separated in a down-hole separator and are brought separately to the seabed. In a first aspect the energy of the water is utilized to inject the water into an underground formation with a lower pressure. In a second aspect the energy is utilized to drive a turbine which in turn is driving a pump for pressurizing hydrocarbons. The invention utilizes a method and an arrangement to control the separator by control valves on the well head for each phase.