Abstract: The invention relates to the oil industry and can be used for increasing well productivity by increasing the oil flowrate, for a well workover and isolation of a water-encroached bench. The inventive packer (1) comprises a body (4) provided with a scaling 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.

Abstract: The proposed method for processing the productive formation in a bottom-hole zone of a well (1) comprises heating the liquid in the bottom-hole zone of a well (1) and removing clogging products therefrom. In accordance with the technical solution, the upper part of the bottom-hole zone of the well (1) is sealed before heating the liquid, thus forming a bottom-hole chamber (6), and after the heating, the liquid within the volume of the bottom-hole chamber (6) is cooled and then this chamber (6) is unsealed before removing the clogging products therefrom.

Abstract: The present invention relates to building and to mining, more particularly o an apparatus for impact action designed for trenchless laying of new underground communications and for reconstruction of existing communications, the apparatus comprising a body, a striker with a through central channel, the striker positioned inside the body with the possibility of performing reciprocal movement, a front chamber formed between the body and striker, a rear chamber formed between the body and the striker, an air distribution system comprising channels for the inlet of compressed air into the chambers and channels for the exhaust of spent air from the chambers, an air conduit, and in which in accordance with the invention the air distribution system is provided autonomously for each of the aforesaid chambers.