Abstract: The present invention relates to a downhole tool for guiding a device into a side track of a borehole, the tool having a tool axis and comprising a tool housing connected to an energy source. The invention further relates to a method for moving the downhole tool into a side track.

Abstract: The present invention relates to a downhole tool comprising a tool housing, an electronics assembly comprising an electronic module located within the housing, wherein the electronics assembly further comprises a plurality of transistor elements being electrically connected with the electronic module and being arranged on a thermal member which is thermally connected with the housing, wherein the electronic module is thermally insulated from the thermal member. Furthermore, the invention relates to a downhole system comprising a wireline, a tool string, and a downhole tool according to the invention.

Abstract: A downhole completion includes a production casing and a sliding sleeve assembly connected as part of the production casing. The completion includes a tubular part and a tubular sleeve.

Abstract: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole. The annular barrier comprises a tubular part for mounting as part of the well tubular structure, an expandable sleeve surrounding the tubular part and having an inner face facing the tubular part, each end of the expandable sleeve being connected with a connection part which is connected with the tubular part, a space between the inner face of the sleeve and the tubular part, and an element arranged in connection with the sleeve, the element having a first part and a second part both of which extend around the inner face, the first part of the element being fastened to the inner face.

Abstract: The present invention relates to an annular barrier system (100) connected with a well head (40) via a well tubular structure (3), comprising a first annular barrier (1) and a second annular barrier (21) to be expanded in an annulus (2) between the well tubular structure and an inside wall (4) of a casing (20) or a borehole (5) downhole for providing zone isolation between a first zone (8) and a second zone (9), each annular barrier comprising a tubular part (6) extending in a longitudinal direction for mounting as part of the well tubular structure, an expandable sleeve (7) surrounding the tubular part and defining a space (13), an opening (11) for letting fluid into the space to expand the sleeve, and a first connection part (15) and a second connection part (16) connecting the expandable sleeve with the tubular part, and wherein the first connection part is arranged nearest to the well head, the system further comprising a flow line (17) fluidly connecting the well head with the opening for supplying fluid

Abstract: The present invention relates to an annular barrier (1) to be expanded in an annulus (2) between a well tubular structure and an inside wall (4) of a borehole (5) downhole, comprising a tubular part for mounting as part of the well tubular structure, said tubular part (6) having a longitudinal axis; an expandable sleeve (7) surrounding the tubular part and having an outer face (8), each end (9, 10) of the expandable sleeve being fastened to the tubular part by means of a connection part (12), where one of the connection parts is a sliding connection part sliding in relation to the tubular part when the expandable sleeve is expanded; an annular barrier space (13) between the tubular part and the expandable sleeve; an aperture (11) in the tubular part for letting fluid into the annular barrier space to expand the sleeve; and an activatable shut-off valve (14) having an open and a closed position and arranged in the aperture, wherein the annular barrier further comprises a detection device (20) for detecting whe

Abstract: The present invention relates to an annular barrier for being expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole. The annular barrier comprises a tubular part for mounting as part of the well tubular structure; an expandable sleeve made of a first metal, surrounding the tubular part and defining a space being in fluid communication with an inside of the tubular part, the expandable sleeve having a longitudinal extension, an inner face facing the tubular part and two ends; a connection part made of a second metal, connecting the expandable sleeve with the tubular part; an opening for letting fluid into the space to expand the sleeve, and a transition area comprising a connection of the sleeve with the connection part.

Abstract: A stimulation method involves arranging a fluid-activated gun in a well through a well head and/or a blowout preventer, dividing the well into a first and a second part, the first part being closer to the well head and/or blowout preventer than the second part, pressurizing the first part of the well with a hot fluid, the hot fluid having a temperature which is higher than the temperature of the formation at a downhole point of injection, activating the fluid-activated gun, thereby converting energy from the pressurized hot fluid into mechanical waves, directing said mechanical waves into the formation, and injecting the hot fluid into the formation simultaneous to activation of the fluid-activated gun via the hot fluid.

Abstract: The present invention relates to an artificial lift tool for being introduced in a wellbore or a casing and submerged in well fluid. The artificial lift tool extends in a longitudinal direction from a top end adapted to be connected to a wireline to a bottom end. The tool comprises a motor unit and a pump unit. Furthermore, invention relates to a production well wherein the artificial lift tool is submerged in a well fluid; to the use of the artificial lift tool for providing artificial lift in a well; and to a method for providing artificial lift in a well.

Abstract: The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), a hydraulic motor (23) comprising a hydraulic motor housing (93), a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with the driving unit housing and being rotatably connected with the rotational part, the stationary part and the rotational part constituting the hydraulic motor housing, the rotational part comprising a wheel ring (99) closed from one end, wherein the wheel assembly comprises a spring member (113) assembling the hydraulic motor housing.

Abstract: A positioning tool for determining the position of the tool in a case downhole. The positioning tool utilizes a detecting unit which includes at least a first magnet and a first sensor in a first plane as well as a second sensor also arranged in the first plane. The first and second sensors are configured to detect changes in a magnetic field generated by the first magnet. The first sensor is arranged at a first distance from the first magnet and the second sensor is arranged at a second distance from the first sensor in the first plane.

Abstract: The present invention relates to a downhole inflow control system for controlling an inflow of fluid into a casing from outside the casing, such as from a reservoir or an intermediate casing. The downhole inflow control system comprises a casing having an axial extension and a wall having a wall thickness (t), an inflow control valve having a housing, an axial extension in an axial direction along the housing, and a spring element moving in relation to the housing, thereby controlling the inflow of fluid through the valve from an inlet of the housing to an outlet of the housing.

Abstract: The present invention relates to a wireless downhole unit (1) adapted to be lowered into a well (2) in a casing (3) having an inner wall (4) and an inner diameter (Dc). The wireless downhole unit comprises an electrical motor (5), a pump (6), and driving means (7) for allowing movement of the wireless downhole unit within the casing, and at least one battery pack (8). The present invention further relates to a downhole system.

Abstract: An inflow assembly for controlling fluid flow between a hydrocarbon reservoir and a production casing in a well, comprising a first tubular having an axial extension and at least one inlet and a first wall with at least a first axial channel extending in the first wall from the inlet, a second tubular having a first and a second end and at least one outlet, the second tubular being rotatable within the first tubular and having a second wall with at least a second axial channel extending in the second wall from the first end to the outlet. The assembly is configured to control a fluid flow between a hydrocarbon reservoir and a production casing in a well. The inflow assembly may also be utilized in a downhole completion comprising a casing string.

Abstract: The present invention relates to a downhole tool (1) for borehole cleaning or for moving fluid in a borehole. The tool comprises a tool housing (29), a chamber inlet (6) and a chamber outlet (36), and the tool housing comprises a pump (8) arranged in a pump housing (4) and a driving unit powered by an electrical conducting means for driving the pump.

Abstract: The present invention relates to a downhole wireline tool for performing an operation in a well at a depth of up to 15 km downhole, the tool being powered by direct current at a predetermined voltage in a first end by a power supply unit which is configured to provide a specific steady-state voltage selected from a plurality of predetermined voltages, comprising an electrical motor being powered by alternating current, a frequency converter arranged between the first end and the motor, and a voltage peak reduction unit adapted to reduce the steady-state voltage of the selected power supplied to the frequency converter from the power supply, the voltage peak reduction unit comprising a capacitor, wherein the capacitor is a high temperature capacitor having a dielectric comprising a material capable of resisting a temperature above 150° C.

Abstract: The present invention relates to a downhole expandable tubular to be expanded in a well downhole from a first outer diameter to a second outer diameter to abut against an inner face of a casing or borehole, the downhole expandable tubular having an axial extension, wherein the downhole expandable tubular is made of metal and is machined from one metal tubular blank, providing the downhole expandable tubular with at least one circumferential projection. Furthermore, the present invention relates to an annular barrier, to a downhole completion comprising a downhole expandable tubular according to the present invention, to a downhole completion comprising a well tubular structure and an annular barrier according to the present invention and to a manufacturing method for the manufacture of the downhole expandable tubular according to the present invention.

Abstract: The present invention relates to a downhole artificial lifting system for introducing fluid into a production casing from an annulus arranged outside the production casing. The production casing has an axial extension and a casing wall with a wall thickness, and the system comprises the production casing which at a first part is surrounded by an intermediate casing creating the annulus which is downwardly closed, and a fluid delivering means pumping fluid into the annulus. The invention also relates to a tool for use in the system and a method.

Abstract: The present invention relates to a completion component having a circumference for insertion into a well tubular structure, comprising a tubular base part having an axial extension and a thickness and being adapted to be mounted as part of the well tubular structure, and a displaceable part having a thickness and being displaceable in relation to the tubular base part from a first position to a second position, wherein the tubular base part comprises a plurality of first markers and the displaceable part comprises a second marker for determining a position of the displaceable part in relation to the tubular base part, the first and second markers being arranged with a marker distance, wherein the first markers are different in geometrical size or material, or arranged with a varying mutual distance.

Abstract: The present invention relates to a downhole tool head (1) for mounting onto a downhole tool (10) for drilling in a formation downhole or for releasing precipitated solids (2), such as ice, scales or the like, in a cavity fluid in a pipeline, a casing (3), a well or any other cavity downhole. The downhole tool head comprises a hollow cylindrical body (4) with a circumferential wall (5) extending from a base part of the body, the circumferential wall having a circumferential rim (6) in its end opposite the base part. The circumferential rim (6) comprises a plurality of edges (8) for cutting, grinding, drilling and/or milling, and the base part has a plurality of through-going holes (9) for letting cavity fluid comprising precipitated solids pass the holes.