Abstract: An installation apparatus for installing a liner in a subterranean formation includes a housing having an internally arranged flexible member operatively connected to a bore-forming device at one end and to a control module at another end. An opening is arranged in a housing wall through which the flexible member and device may be passed. A liner is arranged around at least a portion of the flexible member between the opening and a first support member. The first support member is arranged to move inside the housing in a direction towards the opening, and a second support member is configured to movably support at least a portion of the flexible member in the region between the control module and the first support member. A method of installing a liner in an inverted drainhole is disclosed.

Abstract: An apparatus and a method for at least partially cracking a frangible material in a portion (B) between a first tubular and a second tubular comprises one or more impact devices arranged and configured to impart one or more mechanical impacts to said material. The at least one impact device may comprise a vibration generator A plurality of impact devices may be arranged in the same plane, and several impact devices may be arranged in multiple planes. In the method, one or more mechanical impacts are imparted until cracks or fissures form in the material.

Abstract: A device for centralizing a tubular in a bore, includes a body configured to be positioned at a predetermined location inside the tubular. The device further includes a plurality of penetration tools movably connected to the body via respective motive portions and configured to extend from the body and through the tubular wall. A wall-abutment portion is configured to generate a force between the tubular in order to at least partly shift the tubular inside the bore. The tool, which impinges on the wall, may be extended further, such that the casing is moved as a reaction.

Abstract: An installation apparatus for installing a liner in a subterranean formation includes a housing having an internally arranged flexible member operatively connected to a bore-forming device at one end and to a control module at another end. An opening is arranged in a housing wall through which the flexible member and device may be passed. A liner is arranged around at least a portion of the flexible member between the opening and a first support member. The first support member is arranged to move inside the housing in a direction towards the opening, and a second support member is configured to movably support at least a portion of the flexible member in the region between the control module and the first support member. A method of installing a liner in an inverted drainhole is disclosed.

Abstract: A device is described for a system for conducting tests of a well, pipe or the like, where a plug of a removable material is inserted in a pipe through a well to carry out said tests. The device is characterized in that the wall parts of the pipe comprise channel borings (3,4,8) that set up fluid connections between the well space (70) and the well space (72) above and below, respectively, the plug, and that it comprises a closing body that can close the fluid connection permanently. The channel boring is preferably defined by an axial hollow space/chamber (4) in which a piston is arranged, said piston can be readjusted by an axial movement from a first position where there is fluid connection through the channel and a second position where the connection is permanently closed and can not be reopened.

Abstract: A tool (10) is described for the handling of wells through a formation, and which shall be taken out of operation with a device for a closing plug of a material that can be hardened, such as concrete, where there is a casing pipe in the well that is cemented against the wall in the bore hole with concrete, and it is characterised in that the tool comprises an assembled unit (10) from the following three sections; a perforating lance (32) comprising a number of explosive charges to form by detonation a row of holes in the pipe and out into the surrounding layer of concrete, a cleaning unit (34) for mechanical cleaning of the inner wall of the pipe in the perforated area and a flushing unit (36) to loosen, dissolve and flush away the hardened cement material between the outer wall of the pipe and the wall of the bore hole. Also described is a method to plug a well that shall be taken out of operation.

Abstract: A device is described for a system for conducting tests of a well, pipe or the like, where a plug of a removable material is inserted in a pipe through a well to carry out said tests. The device is characterised in that the wall parts of the pipe comprise channel borings (3,4,8) that set up fluid connections between the well space (70) and the well space (72) above and below, respectively, the plug, and that it comprises a closing body that can close the fluid connection permanently. The channel boring is preferably defined by an axial hollow space/chamber (4) in which a piston is arranged, said piston can be readjusted by an axial movement from a first position where there is fluid connection through the channel and a second position where the connection is permanently closed and can not be reopened.