Abstract: A method for the retrieval of an object from a well (16) with a tool (30) is described, in which the object, by lowering of the tool (30), is directed into a lower inlet section (40) to a hollow holding area (46) in the tool (30). The method is characterized in that a tool (30) is applied which comprises an inlet section (40) with a barbed section (56), which lets the object pass into the holding area (46), but which prevents the object (22) from being led out of the holding area. A tool that can be used to carry out the method is also described, as well as an application.

Abstract: There is referred to a process for retrieving equipment (70, 72, 90) which is stuck, from a bore hole, where the equipment is connected to a tool and is brought to the surface, and the method is characterised in that a tool is lowered in the bore hole, such as mounted to the lower end of a string or the like, said tool comprising a stationary grip part (14, 44) which is arranged substantially enclosingly about the equipment residue (70, 72, 90) between its outer wall and the wall of the bore hole, after which a central axially movable grip part (16) of the tool is caused to be forced downwards for fixing the equipment residue against the stationary grip part. There is also disclosed a device for accomplishing the method.

Abstract: A method for the retrieval of an object from a well (16) with a tool (30) is described, in which the object, by lowering of the tool (30), is directed into a lower inlet section (40) to a hollow holding area (46) in the tool (30). The method is characterised in that a tool (30) is applied which comprises an inlet section (40) with a barbed section (56), which lets the object pass into the holding area (46), but which prevents the object (22) from being led out of the holding area. A tool that can be used to carry out the method is also described, as well as an application.

Abstract: A method and a device for testing of a well, such as in a well liner, a newly drilled hole, and the like, is disclosed. The method is characterised in that a plug is directed down into the well, that the plug is fixed towards the wall of the well the sealing means of the plug is activated to seal against the wall of the well, and after the testing has ceased the sealing function is removed by disintegrating the plug. Preferably a plug of a disintegratable material is used, such as a ceramic material, glass or the like.