Abstract: The present invention relates to a downhole system for completing a well with wireless power and communication downhole, comprising: a first well tubular structure, a second well tubular structure arranged partly inside the first well tubular structure, a first electrical unit comprising a first inductive coupler part and being arranged on an outer face of the first well tubular structure and electrically connected with an electrical conductor, an annular barrier for being expanded in an annulus between a first well tubular structure and a wall of a borehole or another well tubular structure downhole for providing zone isolation between a first zone having a first pressure and a second zone, the annular barrier comprising: a tubular metal part for mounting as part of the first well tubular structure, the tubular metal part having a first expansion opening, an axial extension and an outer face, an expandable sleeve surrounding the tubular metal part and having an inner face facing the tubular metal part and an

Abstract: The present invention relates to a downhole sensor system for measuring a pressure of a fluid downhole in a well, comprising a well tubular structure having an inside and being arranged in a borehole with a wall and an annulus defined between the well tubular structure and the wall of the borehole, a sensor unit having a pressure unit sensor and being arranged in connection with the well tubular structure, the pressure unit sensor being adapted to measure a pressure of the fluid in the inside of the well tubular structure and/or in the annulus, the sensor unit further comprising a power supply and a communication module, a downhole tool comprising a power supply and a communication module for communication with the sensor unit, wherein the downhole tool further comprises a pressure tool sensor adapted to measure a pressure of the fluid inside the well tubular structure substantially opposite the pressure unit sensor for comparison with the pressure measured by the pressure unit sensor.

Abstract: The present invention relates to a downhole string (1) for drilling through a low pressure zone (Zlow) in a formation (45) in a well (3), comprising a drawdown casing (2) having a first end (4) closest to a top (5) of the well and a second end (6), and an operational tool (8) connected to the second end of the drawdown casing, wherein the downhole string further comprises an annular barrier (10) having an expandable metal sleeve (11) surrounding the drawdown casing, each end of the expandable metal sleeve being connected with the drawdown casing, the expandable metal sleeve being adapted to contact a wall (16) of a borehole (17) or another casing so that the drawdown casing can rotate and slide in relation to the annular barrier after expansion of the expandable sleeve. Furthermore, the present invention relates to a downhole system and to a downhole method.

Abstract: A cementless downhole completion system including an annular barrier with a tubular metal part being mounted as part of a first well tubular metal structure arranged in a borehole in a formation and the annular barrier is arranged opposite an impermeable cap layer in the formation. A downhole completion system for completing a well having a top, comprising a formation comprising a cap layer, a borehole extending through the cap layer to provide an inner cap layer face and, a first well tubular metal structure arranged in the borehole comprising a first annular barrier and a second annular barrier. In the expanded position, the expandable tubular of the first annular barrier overlaps the cap layer and the expandable tubular of the second annular barrier overlaps the cap layer.

Abstract: A redressing method for arranging an inner production casing within an existing production casing in order to re-establish production of hydrocarbon-containing fluid in a well, comprises providing the inner production casing to having a substantially constant inner diameter, the inner production casing comprising spaced first and second annular barriers. Each annular barrier has a tubular metal part and an expandable metal sleeve surrounding the tubular metal part. Each barrier has an inner face facing the tubular metal part and an outer face facing an inner wall of the existing production casing. The inner production casing has an outer unexpanded diameter which is smaller than the first inner diameter of the existing production casing.

Abstract: An annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole, includes a tubular part for mounting as part of the well tubular structure. The tubular part has a longitudinal axis, an expandable sleeve surrounding the tubular part and having an outer face, each end of the expandable sleeve being fastened to the tubular part by a connection part, an annual barrier space between the tubular part and the expandable sleeve, an aperture in the tubular part or the connection part for letting fluid into the space in order to expand the sleeve, and a self-actuated device arranged in the aperture having an open and a closed position.

Abstract: The present invention relates to a completion method for completing a uniform inner bore downhole completion system in a reservoir in a formation, comprising the steps of drilling a hole in the formation, inserting a surface casing having an inner surface casing diameter, cementing an outer face of the surface casing to the hole, inserting a drilling head in the surface casing, drilling a main bore extending from the surface casing, the main bore having a first part and a second part, the second part comprising an end of the main bore, and the main bore having an inner main bore diameter which is substantially the same as the inner surface casing diameter of the surface casing, retracting the drilling head from the main bore and the surface casing, inserting a lower production casing in the second part of the main bore, the lower production casing having annular barriers and an inner diameter, setting at least one of the annular barriers of the lower production casing, inserting the drilling head into the fir

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: 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 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 an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole, comprising a tubular part for mounting as part of the well tubular structure, said tubular part having a longitudinal axis, an expandable sleeve surrounding the tubular part and having an outer face, each end of the expandable sleeve being fastened by means of a connection part to the tubular part, and an aperture in the expandable sleeve or the connection part, wherein a first connection and a second connection are fastened on the outer face of the expandable sleeve, and a safety sleeve having an opening is fastened to the expandable sleeve by means of the first and the second connections, the safety sleeve and the expandable sleeve defining a space being in fluid communication with the annulus.

Abstract: The present invention relates to a downhole tubular assembly for sealing an opening in a well tubular structure in a borehole downhole, comprising a first tubular part made of metal having an inner face, an inner diameter, an outer diameter and a first length in an unexpanded state, and a second tubular part having an outer face, an outer diameter and a second length, being arranged inside the first tubular part in an unexpanded state. Furthermore, the invention relates to a downhole system for sealing an opening in a well tubular structure in a borehole. Moreover, the invention relates to a method of sealing an opening in a well tubular structure in a borehole downhole and to a manufacturing method for manufacturing a downhole tubular assembly.

Abstract: The present invention relates to a barrier testing method for testing a production casing in a borehole (4).

Abstract: The present invention relates to a fracturing system for fracturing a formation surrounding a well tubular structure, comprising a tubular part to be mounted as a part of the well tubular structure, the tubular part being made of metal, an expandable sleeve made of metal, the sleeve having a wall thickness and surrounding the tubular part, a fastening means for connecting the sleeve with the tubular part, and an aperture in the tubular part or the fastening means. Furthermore, the invention relates to a fracturing method for fracturing a formation surrounding a well tubular structure.

Abstract: Subsea well intervention module (100) for performing well intervention operations in a well (101) through a well head (120) from a surface vessel (102), comprising a supporting structure (110), a pipe assembly (170) fastened to the supporting structure and having two opposite ends, an inner diameter and a cavity (182) in which an intervention tool (171) may be arranged for pressurizing the cavity (182) when connected to the well head or a blowout preventer arranged on top of the well head to wellbore pressure before at least one valve (121) of a well head is opened and the tool is submerged into the well, a connection member connected with a first end (202) of the pipe assembly for providing a connection to the well head, a wireless intervention tool (171) having an outer diameter and comprising an electrical power device (196). The connection member has an open first end connectable with the well head or blowout preventer and a through-bore providing fluid passage from the first end to the cavity.

Abstract: The present invention relates to a completion assembly for running into a borehole in a formation through a well head or blowout preventer, comprising a casing string having a first end and a second end, and a drill pipe having a first end and a second end and extending through the well head or the blowout preventer and being releasably connected at the first end with the casing string. Furthermore, the invention relates to a completion method for completing a casing string. Moreover, the invention relates to a completion kit for making a completion assembly according to the present invention.

Abstract: An annular barrier system for expanding an annular barrier in an annulus between a well tubular structure and an inside wall of a borehole downhole includes an annular barrier having a tubular part for mounting as part of the well tubular structure. The annular barrier further has an expandable sleeve surrounding the tubular part, at least one end of the expandable sleeve being fastened in a fastener of a connection part in the tubular part. The annular barrier system also comprises a tool for expanding the expandable sleeve by letting a pressurized fluid through a passage in the tubular part into a space between the expandable sleeve and the tubular part.