The Features of Designing of Rubber Packers of High Pressure

V.L. Polonsky, A.P. Tyurin


It is devoted to the rubber seals for oil and gas industry called as packers. The attention in article is given to operation of a rubber element, instead of a design as a whole with the activation and deactivation device (also called as packer). The operation of these seals has the feature. It is necessary to activate after installation of the packer into the well, i.e. it is required to create the compression force in a direction, opposite to action of external pressure. In the standard (traditional) design of packer we have no effect of self-packing of a rubber element of packer external pressure as it happens in usual seals. The features of operation of the packers for a high pressure are considered in the article. The problems which are necessary to solve at their designing are reviewed. The paths of the solution of these problems are submitted. It is presented the packer developed by authors for casing pipes. It keep working capacity at external pressure to 700 Bar. The basic problems of rubber seals was solved in the design of packer: self-packing and extrusion.

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Uplotneniya i uplotnitel'naya tekhnika: Spravochnik [Seals, sealing fittings and techniques: Reference book], Moscow, Mashinostroenie, 1994 – pp.445

Lazarev S.O., Polonsky V.L. Finite-element system STAR for calculations and design of Industrial Rubber [Konechno-elementnaya sistema STAR dlya rascheta I proektirovaniya RTI], Problemy shin i rezinokordnykh kompozitov: sb. materialov simpoziuma [On tires and rubber-cord composite materials: digest of the Symposium – Moscow: 1999, pp.153-156.



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