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Anti-aging HNBR/silicone carbon rubber composite material, preparation method thereof and obtained packer

A composite material and anti-aging technology, applied in the field of functional materials, can solve the problems of unsatisfactory heat and oxygen aging resistance, and achieve excellent mechanical properties

Active Publication Date: 2019-01-22
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the enhancement of mechanical properties of hydrogenated nitrile rubber composites has been extensively studied, its resistance to thermal and oxidative aging is still unsatisfactory

Method used

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  • Anti-aging HNBR/silicone carbon rubber composite material, preparation method thereof and obtained packer
  • Anti-aging HNBR/silicone carbon rubber composite material, preparation method thereof and obtained packer
  • Anti-aging HNBR/silicone carbon rubber composite material, preparation method thereof and obtained packer

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preparation example Construction

[0037] The embodiment of the present invention also provides a preparation method of the aging-resistant HNBR / silicon carbon rubber composite material as described in the above embodiment, comprising the following steps:

[0038] Put 100 parts by weight of supersaturated hydrogenated nitrile rubber into kneading and masticating, slowly add 0.5-2.0 parts of softener, 2-6 parts of accelerator, and 3-7 parts of anti-aging agent, and then knead for 10-20 minutes;

[0039] Add 3-7 parts of reactive reinforcing agent, 25-35 parts of mixed carbon black, and 40-50 parts of biomass silicon carbon to the above system in sequence, and mix for 10-30 minutes;

[0040] Add 3-8 parts of auxiliary cross-linking agent and 3-8 parts of odorless free radical initiator to the above system in batches, knead for 20-40 minutes, and evenly slice to obtain the mixed rubber, and cool it down;

[0041] The cooled mixed rubber was vulcanized on a vulcanizer at 165°C / 15MPa for 20 minutes, and then at 150°...

Embodiment 1

[0046] The supersaturated hydrogenated nitrile rubber that is 100 parts by weight is dropped into the open mill to carry out the mastication of raw rubber, and the measured parts in the formula system are weighed according to Table 1, and then the softening agent, accelerator and anti-aging agent weighed one by one Adding agent, reactive reinforcing agent, mixed carbon black, biomass silicon carbon, co-crosslinking agent and odorless free radical initiator are sequentially added into the open mill to knead and mix evenly, process the mixed rubber, and cool for 24 hours. The mixed rubber was vulcanized on a vulcanizer at 165°C / 15MPa for 20 minutes, and then at 150°C for 4 hours to obtain an aging-resistant HNBR / silicon carbon rubber composite material.

Embodiment 2

[0048] The preparation method is the same as that of Example 1, except that the parts by weight of the components added are different. See Table 1 for the specific mass parts of each component added.

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Abstract

The invention provides an anti-aging HNBR / silicone carbon rubber composite material, a preparation method thereof and an obtained packer, which belong to the technical field of a functional material.The composite material has excellent mechanical properties and aging resistance, and the packer prepared by the composite material can be used for a long time under high temperature oil exploitation conditions, and can still exhibit remarkable mechanical properties after aging for 30 days. The composite material includes 100 parts of supersaturated hydrogenated nitrile rubber, 40 to 50 parts of biomass silicon carbon, 3 to 7 parts of a reaction reinforcing agent, 30 parts of mixed carbon black, 2 to 5 parts of an anti-aging agent, 3 to 8 parts of an auxiliary agent, 3 to 8 parts of an odorlessfree radical initiator, 0.5 to 2.0 parts of a softener, and 2 to 6 parts of an accelerator. The composite material can be used in the preparation of the packer in an oil and gas reservoir exploitation process.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to an aging-resistant HNBR / silicon carbon rubber composite material, a preparation method thereof and a packer obtained therefrom. Background technique [0002] In recent years, with the in-depth development of oil and gas in domestic oilfields, deep wells and ultra-deep wells in low-permeability reservoirs have been vigorously developed. The development of deep oil and gas resources is faced with the characteristics of high water cut, deep wells, high temperature, high pressure, high stress, and high carbon dioxide. The research and development of new downhole tools and new materials for unconventional reservoir development are increasingly becoming the key to oil production engineering. [0003] HNBR has the characteristics of excellent mechanical properties, high and low temperature resistance, chemical medium resistance and ozone resistance, so it is wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08K7/26C08K3/04C08K5/098
CPCC08K3/04C08K5/098C08K7/26C08L15/005
Inventor 李再峰李子健
Owner QINGDAO UNIV OF SCI & TECH
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