Abstract: A method of bonding substrates having different coefficients of thermal expansion, especially in the shell construction of modes of transport or white goods, using a one-component thermosetting epoxy resin composition containing toughness improvers based on terminally blocked polyurethane prepolymers.

Abstract: A headgear includes a head portion at least partly surrounding a head, an inflatable portion having an inflatable volume, a mouthpiece, at least one wind instrument, and an air tube defining a flow connection between the mouthpiece and the inflatable volume. A sound is producible by the at least one wind instrument in answer to air blown into the mouthpiece.

Abstract: The present invention relates to a downhole plug and abandonment system (100) for a well (105), comprising a first well tubular metal structure (101a) having a wall, a second well tubular metal structure (101b) having a wall, the second well tubular metal structure being arranged inside the first well tubular metal structure, the well tubular metal structures having longitudinal extensions and being arranged in a borehole (104) of a well, a packer (350) arranged between the first well tubular metal structure and the second well tubular metal structure defining an annular space (351) above the packer, a first plug (106) arranged in the second well tubular metal structure dividing the second well tubular metal structure into a first part (107) and a second part (108), the first part being closest to a top of the well, and a cement plug (270) arranged in the first part on top of the packer and the plug. Furthermore, the present invention relates to a downhole plug and abandonment method.

Abstract: A downhole repairing system includes a downhole straddle assembly for straddling over a zone downhole in the well having a plurality of tubular sections. A downhole setting tool string has a tubular tool part with expansion openings for allowing pressurised fluid to flow out to expand expandable metal sleeves. The first end tubular section has a groove for receiving at least one retractable engagement part of a connection tool of the downhole setting tool string, and the second outer tool diameter is smaller than the second end inner diameter creating a first sealed distance which is less than 2 mm.

Abstract: The present invention relates to a downhole method for removal of at least part of a first well tubular metal structure in a borehole of an existing well having a top, the first well tubular metal structure having a longitudinal extension and a first end closest to the top, comprising inserting a downhole wireline tool having an anchor section and a machining device in the first well tubular metal structure, positioning the downhole wireline tool opposite the first section of the first well tubular metal structure so that the machining device is positioned 8-12 metres from the first end of the first well tubular metal structure and the anchor section is arranged above the machining device, anchoring the downhole wireline tool opposite the first section by activating the anchor section to abut an inner surface of the first well tubular metal structure, separating the first section having a length of 8-12 metres from a second section of the first well tubular metal structure by machining into and along a circum

Abstract: The present invention relates to a downhole method for providing a zonal isolation at a predetermined position in an annulus between a wall of a borehole and a well tubular metal structure having a longitudinal extension in an existing well, comprising inserting a downhole tool in the well tubular metal structure, positioning the downhole tool opposite the predetermined position, separating a first section of the well tubular metal structure from a second section of the well tubular metal structure by machining into and along a circumference of the well tubular metal structure, inserting an unexpanded annular barrier between the first section and the second section, and expanding the annular barrier for providing zonal isolation at the predetermined position.

Abstract: A geothermal energy extraction subterranean system for extracting heat from a subterranean formation has an injection well in a first borehole and a first production well extracting the heated working fluid through a first production opening. The first well tubular metal structure has first and second annular barriers to isolate a production zone, each annular barrier including a tubular metal part having a first expansion opening and an outer face, an expandable metal sleeve surrounding the tubular metal part and having an inner face facing the tubular metal part and an outer face facing the wall, each end of the expandable metal sleeve being connected with the tubular metal part. The first production zone is arranged between the first and second well tubular metal structures so that the heated working fluid is extracted in the second well tubular metal structure through the first production opening.

Abstract: The present invention relates to a downhole completion device configured to be mounted as part of a well tubular metal structure. The downhole completion device comprises a housing enclosing a closed space, an electrical component arranged in the space inside the housing, the housing being filled with a liquid having a first volume of 1 bar at 20° C., wherein the housing has a first housing section and a second housing section, the first housing section having a first thickness and the second housing section having a second thickness, and the second thickness being smaller than the first thickness so that the second housing section is more flexible than the first housing section. Furthermore, the invention relates to a downhole completion system.

Abstract: A method of manufacturing a semiconductor device includes reducing a thickness of a semiconductor substrate and/or forming a doped region in the semiconductor substrate. The method further includes changing an ion acceleration energy of an ion beam while effecting a relative movement between the semiconductor substrate and the ion beam impinging on the semiconductor substrate.

Abstract: The present invention relates to a workover tool string for cutting into a production tubing of a well completion having a top, the well completion comprising a casing into which the production tubing is arranged and a production packer arranged between the casing and the production tubing defining an annulus above the production packer, the workover tool string comprising: a longitudinal axis, a first tool string end and a second tool string end, the first tool string end being arranged closer to the top when submerged into the well completion, a tubing cutting unit comprising a body and a cutting edge configured to be rotated around the longitudinal axis while being projected in relation to the body for cutting into a wall of the production tubing from within in order to separate a first part of the production tubing closest to the top from a second part of the production tubing, wherein the workover tool string further comprises a tubing penetration unit comprising a projectable penetration element configu

Abstract: The present invention relates to an offshore method for preparing a well for production of hydrocarbon-containing fluids from a wellbore, comprising installation of a drilling rig for drilling at least part of the wellbore, drilling a first part of the wellbore, installation of a surface casing, connecting a drilling blowout preventer with a top of the surface casing, e.g. via a wellhead, i.e.

Abstract: A wireline tool for sampling/jetting fluid in a well includes a pump with an opening, and a chamber for collecting/jetting fluid, the chamber having first and second ends. The chamber includes first and second pistons dividing the chamber into first, second and third chamber sections. The first and second pistons are attached to respective piston rods, and the rods are supported by respective supports. A first spring is provided between the first piston and its support and another spring is provided between the second piston and its support. When the pump operates, the pistons are forced in one direction, hence activating spring forces of the springs and allowing fluid to flow from one chamber section to another chamber section.

Abstract: The present invention relates to downhole repairing system for repairing a zone of a downhole well having a top and an axial axis, comprising: a downhole straddle assembly for straddling over the zone downhole in the well, the straddle assembly comprising a plurality of tubular sections mounted end to end in succession to form one tubular pipe having a first end tubular section nearest the top forming a first open end of the tubular pipe, and having a second end tubular section forming a second open end of the tubular pipe, the first end tubular section having a first end inner diameter and the second end tubular section having a second end inner diameter, wherein the tubular section mounted to the first end tubular section is a first expandable metal sleeve being more pliant than the first end tubular section, and the tubular section mounted to the second end tubular section is a second expandable metal sleeve being more pliant than the second end tubular section, and a downhole setting tool string comprisin

Abstract: The present invention relates to a fracturing method for providing fractures in a formation downhole for optimising hydro-carbon production, such as gas or shale gas production, in a well having a well tubular metal structure comprising several self-closing flow assemblies, each self-closing flow assembly comprising a sleeve which is movable along a longitudinal axis of the well tubular metal structure for opening or closing a port in the well tubular metal structure.

Abstract: An epoxy group-terminated impact modifier is described, comprising the reaction product of a) two or more polyols, b) one or more polyisocyanates, and c) at least one epoxy resin comprising a primary or secondary hydroxy group-containing epoxy compound, wherein the polyols comprise a1) at least one polyether polyol and a2) at least one OH-terminated rubber, wherein the weight ratio of polyether polyol to OH-terminated rubber is in the range from 7:3 to 2:8; an isocyanate-terminated prepolymer as possible intermediate product is described; furthermore a method for producing same is described. The products obtained are suitable for improving the impact resistance of epoxy resin compositions, in particular of 1K or 2K epoxy resin adhesives.

Abstract: A thermally expandable composition, including at least one polymer P, cross-linkable by peroxide, at least one peroxide, preferably at least one acrylate, at least one blowing agent B, preferably at least one activator for the blowing agent, and at least one epoxide group terminated polymer of the formula (I), wherein Y represents a n-valent radical of a linear or branched polyurethane polymer terminated with isocyanate groups after the removal of the n terminal isocyanate groups, Z represents a (1+m)-valent radical of an aliphatic, cycloaliphatic, aromatic or araliphatic epoxide containing a primary or secondary hydroxyl group after the removal of the hydroxyl group and m epoxide groups, m represents an integer with a value of 1, 2, or 3, and n represents an integer with a value from 2 to 4.

Abstract: The present invention relates to a downhole plug and abandonment system (100) for a well (105), comprising a first well tubular metal structure (101a) having a wall, a second well tubular metal structure (101b) having a wall, the second well tubular metal structure being arranged inside the first well tubular metal structure, the well tubular metal structures having longitudinal extensions and being arranged in a borehole (104) of a well, a packer (350) arranged between the first well tubular metal structure and the second well tubular metal structure defining an annular space (351) above the packer, a first plug (106) arranged in the second well tubular metal structure dividing the second well tubular metal structure into a first part (107) and a second part (108), the first part being closest to a top of the well, and a cement plug (270) arranged in the first part on top of the packer and the plug. Furthermore, the present invention relates to a downhole plug and abandonment method.

Abstract: The present invention relates to a downhole system for a well producing hydro-carbon-containing fluid. The downhole system comprises a casing comprising a first casing part and a second casing part, the second casing part having a casing thickness and comprising at least one sleeve having an inner face, and the second casing part being substantially a monobore in that the second casing part has an inner diameter which varies by less than twice the casing thickness; and a drop device for being immersed into the casing having at least one sleeve having an inner face. The drop device comprises a body having a width; a leading end; and a trailing end. The body further comprises an expandable sealing element arranged between the leading end and the trailing end, moving from a first position in which fluid is allowed to pass the device and a second position in which the sealing element abuts the inner face of the sleeve and seals off a first zone in the well from a second zone in the well.

Abstract: An impact modifier, which is an isocyanate-terminated polymer, the isocyanate groups of which are partially or completely blocked by reaction with a blocking agent, wherein the isocyanate-terminated polymer is a reaction product of a) one or more polyols including polytetramethylene ether glycol in a fraction of at least 95 wt %, with respect to the total weight of the polyols, and b) two or more polyisocyanates, which include at least one diisocyanate and at least one polyisocyanate having an average isocyanate functionality of 2.5 or more, wherein the molar ratio of isocyanate groups of the one or more diisocyanates to isocyanate groups of the one or more polyisocyanates having an average isocyanate functionality of 2.5 or more lies in the range of 2 to 1 to 20 to 1. The impact modifier is suitable in one-component epoxide resin formulations, one-component epoxide resin glues, but also in two-component epoxide resin formulations.

Abstract: The present invention relates to a downhole completion device configured to be mounted as part of a well tubular metal structure. The downhole completion device comprises a housing enclosing a closed space, an electrical component arranged in the space inside the housing, the housing being filled with a liquid having a first volume of 1 bar at 20° C., wherein the housing has a first housing section and a second housing section, the first housing section having a first thickness and the second housing section having a second thickness, and the second thickness being smaller than the first thickness so that the second housing section is more flexible than the first housing section. Furthermore, the invention relates to a downhole completion system.