device for installation of extensible inner lining with the diameter as the control installation

摘要

the object of the invention is a device for mounting the extensible inner lining in a borehole or the duct, for example, in the casing string.part of which need to be repaired or u0437u0430u0442u0430u043cu043fu043eu043du0438u0440u043eu0432u0430u0442u044c, using a cylindrical lining or a repair lining, the diameter of which is less than the u0434u0438u0430u043cu0435u0442 mr. wells or pipelineand which is deformed by radial expansion above the limit of elastic deformation in such a way that it is hard and durable in contact with the wall ( (c) wells or pipelinethe device includes a retractor (2)sequential moves inside a repair lining (1) along the axis from one end to the other along the length of overlapping nozzles and capable of gradually the radial expansion of the remou043du0442u043du043eu0439 nozzles throughout its length, a fact that he has a control element (5) installed near the u0440u0430u0441u0448u0438u0440u0438u0442u0435u043bu044f (2) directly from its rear cha ste...if you look in the direction of its movement, part of which is calibrated in such a way that the control element (5) can flow freely inside repair noah lining (1).when the gasket is properly extended, in this case, the movement of u0440u0430u0441u0448u0438u0440u0438u0442u0435u043bu044f (2), and on the contrary, can not enter inside a repair lining (1).when the gasket is expanded or not, which blocks the moving tool.