| 摘要 |
oil and gas production industry, sealing of ring space between pipes. SUBSTANCE: invention can also be used for repair of wells and for conducting of various technological operations. Proposed hydraulic packer has body which carries upper and lower anchoring units, elastic sealing member placed between anchoring units, hydraulic drive manufactured in the form of cylinder and piston forming chamber communicating with pipe clearance, valve linked to lower part of body and fitted with location seat to accommodate separable member. Piston, upper and lower anchoring units and location seat are fixed by members in shear for their successive unfixing with formation of excessive pressure inside packer. Three metal rings with seals embracing body are built in elastic sealing member. EFFECT: raised operational reliability of packer. 3 cl, 3 dwg
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