SEALING DEVICE FOR SEALING OF HOLES IN THE WALL OF A PIPE IN A CURVED OIL WELL, AN ANCHORING DEVICE FOR THE SEALING DEVICE AND A TOOL FOR MOUNTING OF THE SEALING DEVICE AND THE ANCHORING DEVICE

摘要

A sealing device (6) for sealing holes in a casing (1) of a curved oil well, comprising a pipe device (52, 53) together with a packing (60, 62) and an engagement section (50, 51) at each end of the pipe device (52, 53). The packings (60, 62) are radially expandable when mutually opposing axial forces are exerted against the ends of the pipe device (52, 53). The pipe device comprises at least two pipes (52, 53) whose opposite end sections (70, 71) are sealingly connected to each other via a universal coupling. The invention also comprises a tool (5) for mounting the sealing device (6), comprising a connecting pipe (12), at each end of which is a head (10, 11), which can be connected to the end sections of the pipe device (52, 53). The heads are arranged to be pressed against each other, e.g. by means of a hydraulic device (14) for expansion of the packings (60, 62). The invention further comprises an anchoring device (81, 84, 85) to hold the sealing device (6) securely in the casing (1).