Rubber barrel capable of resisting high-temperature steam, compressed type packer and sealing method

A high-temperature steam and high-temperature-resistant technology, which is applied in sealing/isolation, earthwork drilling, wellbore/well components, etc., can solve problems such as failure of rubber cartridges, loss of recovery ability, and easy failure of rubber cartridges, etc., to increase sealing performance Effect

Active Publication Date: 2016-02-03
TIANDING SEALING TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] When the rubber tube needs to withstand a certain pressure to make it deform and seal, it is necessary to consider the deformation capacity of the rubber tube itself. If the deformation is insufficient, it will not be able to perform the sealing function; if the deformation is

Method used

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  • Rubber barrel capable of resisting high-temperature steam, compressed type packer and sealing method
  • Rubber barrel capable of resisting high-temperature steam, compressed type packer and sealing method
  • Rubber barrel capable of resisting high-temperature steam, compressed type packer and sealing method

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Embodiment Construction

[0048] Packer is a key tool for downhole oil production in oilfields. It is widely used for various purposes such as oilfield injection, layered reconstruction, layered oil recovery, mechanical pipeline water plugging, etc. The packer needs to be used for annular isolation. The core component to realize annular space isolation is the rubber cartridge. As the core component of the packer, the quality of the rubber cartridge directly affects the normal use effect and service life of the packer, and plays a decisive role in the packer. Generally, in the mining of heavy oil, the rubber material of the rubber cartridge cannot withstand the high-temperature steam of 350°C, and is prone to aging and loss of elasticity. Regular replacement consumes a lot of man-hours and materials. However, when the rubber cartridge of high-temperature-resistant plastic is used alone, since the polyether ether ketone material is relatively hard, the oil pressure required to achieve the setting seal i...

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Abstract

The invention relates to the field of sealing, in particular to a rubber barrel capable of resisting high-temperature steam, a compressed type packer with the rubber barrel and a sealing method. The rubber barrel comprises a sealing body, wherein the sealing body is provided with a first sealing section and second sealing sections; the first sealing section is easier to compress than the second sealing sections; when axially compressed, the first sealing section seals a first bulge in the radial direction, and the second sealing sections are not enough to seal a second bulge in the radial direction; the second sealing sections are close to steam holes for jetting the high-temperature steam, so that when the steam holes jet the high-temperature steam, the second sealing sections continuous to seal a third bulge in the radial direction under the action of the high-temperature steam to prevent direct contact between the high-temperature steam and the first sealing section or shorten the time for the high-temperature steam to contact with the first sealing section. The rubber barrel disclosed by the invention can realize low-temperature sealing and high-temperature sealing, and can both achieve a sealing effect and resist the high-temperature steam.

Description

technical field [0001] The invention relates to the field of sealing, in particular to a high-temperature steam-resistant rubber cartridge, a compression packer with the rubber cartridge and a sealing method. Background technique [0002] Rubber cartridge materials include metal materials (aluminum, lead, indium, stainless steel, etc.), non-metallic materials (rubber, plastic, ceramics, graphite, etc.), composite materials (such as rubber-asbestos board, airgel felt-polyurethane), but The most used is rubber-like elastomer material. [0003] When the rubber tube needs to withstand a certain pressure to make it deform and seal, it is necessary to consider the deformation capacity of the rubber tube itself. If the deformation is insufficient, it will not be able to perform the sealing function; if the deformation is too large, it may cause the rubber tube to collapse due to crushing. failure, loss of resilience. In addition, it needs to be considered that when the rubber car...

Claims

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Application Information

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IPC IPC(8): E21B33/128
Inventor 宋炜杨杰索双富贾晓红王晨希王登科
Owner TIANDING SEALING TECH BEIJING CO LTD
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