PACKER AND METHOD FOR FIXATION THEREOF IN A WELL

摘要

The invention relates to the oil industry and can be used for increasing wel l productivity by increasing the oil flowrate, for a well workover and isolati on of a water-encroached bench. The inventive packer (1) comprises a body (4) provided with a sealing ring (5) which is collapsible in a radial direction and fitted with a drive. Said drive is embodied in the form of a chamber (6) containing a working medium in an such initial aggregative state in which it occupies a minimum volume, and comprises an element transferring the working medium from the initial state to another state. In order to fix the packer ( 1) in the well, the working medium of the drive of the sealing ring is transferred from the initial aggregative state to another state, where the working medium occupies a greater volume.