Abstract: A tubing system for use in an oil or gas well includes a tubing, provided with a holder portion; a casing, around the tubing; a packer, disposed in an annulus defined by the tubing and the casing; and a telescopic extension, positioned within the tubing and extendable beyond a distal portion of the tubing. The telescopic extension is provided with structures for fastening the telescopic extension to the holder portion of the tubing, and structures for accepting a tool by which the telescopic extension is axially displaceable to withdraw the telescopic extension from the distal portion of the tubing.

Abstract: A device for use with a retrievable bridge plug (30) comprising an upper packer element (3) and a lower packer element (11). The upper element (3) is connected to an upper link (6), which can rotate around a first pin (5). Upper link (6) is rotatably connected to a lower link (8) by a second pin (7). Lower link (8) can rotate around a third pin (9). An angle (&agr;) is formed between the longitudinal axis of the bridge plug and a line extending through the first pin (5) and the second pin (7), and correspondingly through the second pin (7) and the third pin (9), which is greater than zero when upper link (6) and lower link (8) is drawn. Upper link (6) and lower link (8) are arranged for, at setting, to expand radially by compression of upper packer bracket (3) against lower bracket (12), for forming a mechanical barrier for upper packer element (3) and lower packer element (11).

Abstract: A bridge plug (1) for use in a casing (7), for example in oil and/or gas wells, comprising a packing element (2) of a resilient material is disclosed. The packing element (2) is adapted for at impact from a running tool to expand from a first diameter, to a second diameter that is greater than the first diameter which corresponds to the inner diameter of the casing that is to be sealed. The packing element (2) is divided in zones forming at least one expandable sealing packing element (34, 35) and at least one expandable support packing element (31, 32, 33), where the support packing elements (31, 32, 33) are expandable to a smaller diameter than the sealing packing elements (34, 35). The bridge plug (1) is further comprised of an anchoring means (3) that is provided for holding the bridge plug (1) in its place in the casing by a friction surface (28) that is pressed radially against the casing (7).