Abstract: The present invention relates to an apparatus for monitoring physical parameters in an oil and/or gas well, the apparatus being connectable to a wellhead of the oil and/or gas well. The apparatus comprises a flange assembly configured with a through bore and an end termination, in which through bore a sensor and associated electronics are arranged. The sensor, including a first electronic circuitry, is connected to a second electronic circuitry via transmission devices that are passed through a pressure-tight element arranged in the through bore. The invention also relates to a wellhead for use with an oil and/or gas well with a plurality of casings defining a plurality of annili. The wellhead is configured with a plurality of through-holes, each leading into a respective annulus of the well, and each through-hole is connected to an apparatus as mentioned above.

Abstract: A method for installing an apparatus for monitoring physical parameters in an annulus of an oil and/or gas well having a well head. The apparatus comprises a sensor plug including a sensor and a flange assembly arranged with a bore holding a signal processing unit for communication with the sensor. The method comprises installing the sensor plug in a passage in the well head, connecting a cable connector to the sensor plug, positioning the bore of the flange assembly essentially coinciding with the passage of the well head. The invention also comprises a method for retrieving an apparatus for monitoring physical parameters in an annulus of an oil and/or gas well having a well head.

Abstract: A valve arrangement (8) for controlling the flow of an injection fluid from a well annulus (4) into a well conduit (5) of a hydrocarbon well (1), comprising a valve body (9) being insertable into a side pocket mandrel (6) of the hydrocarbon well (1), the valve 23- body comprising: at least one inlet port (10) for receiving the injection fluid from the well annulus; at least one outlet port (11) for delivering the injection fluid to the well conduit; an injection fluid valve (19) being arranged in fluid communication with the least one inlet port and the at least one outlet port and being operable between an open position and a closed position for controlling the flow of the injection fluid through the valve arrangement; an actuating device (22) for actuating the injection fluid valve towards the closed position; and a bellows arrangement (24) comprising a first pressure member (26), a second pressure member (27) and at least one bellows element (34, 35) enclosing at least one bellows chamber comprising a bell

Abstract: A wave-inducing device for cementing a casing in a borehole. The wave-inducing device is designed for arrangement in the casing and includes a movable element which, when the wave-inducing device is arranged in the casing, is designed to be moved by cement and/or another fluid flowing through the casing so that wave motions and/or vibrations are provided in the cement during the cementing of the casing.

Abstract: The present invention relates to a valve system for use in a wellbore, the system comprising a side pocket mandrel and one or more well tools, where the side pocket mandrel (6) comprises an elongated body section (7) provided with connection means (8) at its ends, the elongated body section (7) being provided with a substantially fully open main bore (9) for alignment with the well tubing (3) and an offset side pocket bore (10).

Abstract: A wave-inducing device for cementing a casing in a borehole. The wave-inducing device is designed for arrangement in the casing and includes a movable element which, when the wave-inducing device is arranged in the casing, is designed to be moved by cement and/or another fluid flowing through the casing so that wave motions and/or vibrations are provided in the cement during the cementing of the casing.

Abstract: A valve system for use in a wellbore includes a side pocket mandrel and one or more well tools, where the side pocket mandrel includes an elongated body section provided with a connector at its ends, the elongated body section being provided with a substantially fully open main bore for alignment with the well tubing and an offset side pocket bore. At least one through opening is provided in the side pocket mandrel, leading into the side pocket bore, and at least one through opening is provided in the internal wall, leading into the main bore, where the at least two openings are in fluid communication through the side pocket bore, in which side pocket bore at least two valves are arranged in series to form a double fluid barrier between the main bore and an outside of the pocket mandrel, the at least two valves being independently retrievable through at least one installation opening arranged in the internal wall of the side pocket mandrel.

Abstract: The invention concerns a method for installing an apparatus for monitoring physical parameters in an annulus of an oil and/or gas well having a well head. The apparatus comprises a sensor plug including a sensor and a flange assembly arranged with a bore holding a signal processing unit for communication with the sensor. The method comprises the following steps; installing the sensor plug including the sensor in a passage in the well head, which passage communicates with an annulus of the well, connecting a cable connector to the sensor plug, which cable connector is attached to an end of a cable, connecting the sensor of the sensor plug to the signal processing unit in the bore of the flange assembly, positioning the bore of the flange assembly essentially coinciding with the passage of the well head thereby inserting the cable connector into the bore and attaching the flange assembly to the well head thereby.

Abstract: The present invention relates to an apparatus comprising a flange assembly configured with a through bore and an end termination, where a sensor and associated electronics are arranged in the through bore, and wherein the sensor, via transmission devices passed through a ceramic element, is connected to the associated electronics.

Abstract: The invention relates to a valve device that is used in oil and gas wells. The valve device has an external housing (1), where at least one inlet (4) in the housing (1) is connected to an outlet (5) through a longitudinal bore in the housing longitudinal direction. Between the valve device's inlet and outlet there is mounted a valve seat (2) in the bore, where a valve body (3) shuts off the connection between the inlet and outlet. The valve body's position is controlled by a support (20), connected with a pressure-sensitive bellows device (6) comprising an upper and a lower bellows element (7, 71). When the lower bellows element is compressed in the valve device's axial direction, the compression will cause the two bellows elements'impact elements to be moved relative each other in order to lift the valve body out of abutment with the valve seat.

Abstract: Present invention regards a device for injection and stimulation of fluids in a wellbore, where the device is typically is installed in Christmas trees, wellheads or subsea. The device comprises two separable sections, where the section that is mounted/arranged within the Christmas tree or wellhead, will remain in a closed position even if the other section due to external forces is broken off or in other ways is damaged.

Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore (3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device is positioned outside of the outer housing (1).

Abstract: The present invention relates to a valve (1) comprising at least one flange portion (2, 3) for securing to a wellhead Christmas tree (5) for shutting off a pipe outlet (50) from the wellhead Christmas tree (5). According to the invention at least one of the flange portions (2) comprises integrated devices (6a, 6b, 6, 14, 15) for operation of a second unit (10) mounted outside the valve (1).

Abstract: A valve device for use in a side pocket and/or sub in a well, having a housing (1) with a first port (2) and a second port (3), a first valve body (11) movably mounted internally in the housing(1), a second valve body (20) mounted internally in the housing (1) and movable relative to both the housing (1) and the first valve body (11), where a first locking device (A) is configured between the first valve body (11) and the second valve body (20) in order to lock the movement of the first valve body (11) relative to the second valve body (20) in one direction and in such a manner that when the first locking device (A) is activated, the first valve body (11) is held in an open position as long as the second valve body (20) is in an open position.

Abstract: The present invention regards a valve assembly (100) for injecting fluid, preferably a liquid, into a tubing, comprising a first and a second valve sections arranged in series within at least one outer housing (10, 11), the first valve section comprises an internal bore (13) in the housing (10) and a first sealing surface (14) and a first valve element (20) arranged movable within the bore (13) with an sealing surface (25) interacting with the first sealing surface (14) of the at least one housing (10, 11) to form a metal-metal seal, and pretension means (33) keeping the first valve section in a closed position against a hydrostatic pressure independent of tubing pressure, the second valve section arranged downstream of the first valve section and comprises an internal bore (16) in the housing (11) and a second sealing surface (17) and a second valve element (26) arranged movable within the bore (16) with a sealing surface (31) interacting with the second sealing surface (17) of the at least one housing (10,

Abstract: The present invention relates to a device which can be employed in connection with oil and/or gas wells for the purpose of increasing the well's production. The device comprises an external structure, in which external structure a first and a second pressure-influenced bellows device is mounted, where the first and second pressure-influenced bellows devices are in fluid connection with each other via a support device. At the end opposite the connection with the support device, the second pressure-influenced bellows device is connected to a movable sleeve. The device further comprises a pivotable or rotatable closing mechanism for the device, where the closing mechanism is connected to the movable sleeve.

Abstract: A device and an associated method, of enhancing production of hydrocarbons from a wellbore by the use of a device, where the device is arranged in a side pocket mandrel. The method, and associated device, includes means for allowing a fraction of a main production flow to enter a first flow passage (10) in the device through an inlet (11) and to mix with the fluid from a second flow passage (20) in the device, before returning the mixed flow to the main production flow.

Abstract: The present invention relates to an apparatus for monitoring physical parameters in an oil and/or gas well, the apparatus being connectable to a wellhead of the oil and/or gas well. The apparatus comprises a flange assembly configured with a through bore and an end termination, in which through bore a sensor and associated electronics are arranged. The sensor, including a first electronic circuitry, is connected to a second electronic circuitry via transmission devices that are passed through a pressure-tight element arranged in the through bore. The invention also relates to a wellhead for use with an oil and/or gas well with a plurality of casings defining a plurality of annili. The wellhead is configured with a plurality of through-holes, each leading into a respective annulus of the well, and each through-hole is connected to an apparatus as mentioned above.

Abstract: The present invention relates to a kick over tool (5) for manipulating and installing devices into and removing devices from a side pocket mandrel (2), where the kick over tool is designed to enable multiple operations in the same run. The kick over tool comprises a tubular carrier housing (6) adapted for passage through a full opening bore of a production string, at least a first and second setting device (8,9) that is arranged in said carrier housing, the first and second setting device being pivotally connected to a first and second articulated linkage mechanism (12,13) comprising a coupling device for the well bore device.

Abstract: The present invention relates to a tool for installation of units in connection with oil wells, comprising a housing (1) with an attachment device (12) for attachment to a well installation, a telescopic device (30, 31, 32) for extension of the tool, a torsional force transmission device (13) for rotation of an internal movable element (2) of the tool. According to the invention the internal movable element (2) comprises a pressure face (21), which in an operative condition is exposed to a well pressure and a counter-pressure face (22), with a sealing arrangement (26) between the housing (1) and the internal movable element (2) provided between these pressure faces (21, 22) and devices (23) which are arranged in such a manner that a pressure can be applied to the counter-pressure face.