Abstract: The present invention relates to an abandonment plug for plug and abandonment of a well, said abandonment plug comprising a first end part being closable or closed, a second end part being tubular and having a groove in an inner face, an expandable metal sleeve arranged between the end parts, the end parts being more rigid than the expandable metal sleeve, and an unit releasably connected to the second tubular end part, the unit comprising at least one radially projectable fastening element, a unit sleeve, and a piston movable in the unit sleeve for, in a first position, forcing the radially projectable fastening element and, in a second position, being offset in relation to the radially projectable fastening element, allowing the radially projectable fastening element to move radially inwards. Furthermore, the present invention relates to a plug and abandonment system comprising the abandonment plug according to the present invention.

Abstract: A completion method for completing a well includes running of a second well tubular metal structure into the well to a position at least partly below a first well tubular metal structure, circulating cleaning fluid at a first pressure out through the second end to remove at least part of the mud, displacing cement at a second pressure down through the second well tubular metal structure into an annulus between the second well tubular metal structure and a wall of the borehole, pressurising the inside of the second well tubular metal structure to a third pressure above the first pressure and the second pressure breaking a breakable element in the valve assembly, which changes condition from the first condition to the second condition, further pressurising the inside of the second well tubular metal structure, expanding the expandable metal sleeve to abut the wall of the borehole.

Abstract: The present invention relates to a downhole completion system for providing a well tubular metal structure in a borehole of a well having a top, comprising a well tubular metal structure configured to be arranged in the borehole.

Abstract: The present invention relates to a downhole completion system for providing a well tubular metal structure in a borehole of a well having a top, comprising a well tubular metal structure configured to be arranged in the borehole.

Abstract: The present invention relates to a completion method for completing a well having a top comprising, drilling a borehole below a first well tubular metal structure in the well, circulating mud at least partly while drilling the borehole, providing a second well tubular metal structure having at least one unexpanded annular barrier having a tubular part surrounded by an expandable metal sleeve, expandable by means of pressurised fluid from within the second well tubular metal structure through a valve assembly into an annular space between the tubular part and the expandable metal sleeve.

Abstract: The present invention relates to an abandonment plug for plug and abandonment of a well, said abandonment plug comprising a first end part being closable or closed, a second end part being tubular and having a groove in an inner face, an expandable metal sleeve arranged between the end parts, the end parts being more rigid than the expandable metal sleeve, and an unit releasably connected to the second tubular end part, the unit comprising at least one radially projectable fastening element, a unit sleeve, and a piston movable in the unit sleeve for, in a first position, forcing the radially projectable fastening element and, in a second position, being offset in relation to the radially projectable fastening element, allowing the radially projectable fastening element to move radially inwards. Furthermore, the present invention relates to a plug and abandonment system comprising the abandonment plug according to the present invention.