Preparation method of high temperature and high pressure resistant rubber sealing material

A rubber sealing, high temperature resistant technology, used in sealing/isolation, earthmoving, wellbore/well components, etc., it can solve the problem that the rubber cartridge is not sold or used, and achieves excellent enhancement effect and high bond energy. , the effect of improving cross-linking efficiency

Inactive Publication Date: 2010-09-08
QINGDAO UNIV OF SCI & TECH +1
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  • Abstract
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Problems solved by technology

However, there is no report on the sale or use of rubber cartridges used under high temperature and high pressure at 150°C.

Method used

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  • Preparation method of high temperature and high pressure resistant rubber sealing material

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Embodiment 1-4

[0009] Embodiment 1-4: wherein the reinforcing material of embodiment 1 is ultrafine particle size carbon black 220; The reinforcing material of embodiment 2 is methacrylate; The reinforcing material of embodiment 3 is ultrafine particle size carbon black 401; Implementation The reinforcing material of Example 4 is ultra-fine particle size carbon black 220 and methacrylate synergy.

[0010] The present embodiment weighs the listed raw materials according to the proportion recorded in Table 1, first hydrogenated nitrile rubber is put into the open mill and masticated, then other materials and auxiliary agents are added into the open mill successively for mixing until well mixed. The mixed rubber is vulcanized for one stage in a flat vulcanizer, the vulcanization temperature is controlled at 150-180°C, the vulcanization time is 20-40 minutes, and the vulcanization pressure is 10-20MPa. After the rubber is taken out from the flat vulcanizer, it is subjected to two-stage vulcaniz...

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Abstract

The invention belongs to the technical field of rubber sealing material, and relates to a preparation method of a high temperature and high pressure resistant rubber sealing material which can be applied to an oilfield deep oil production engineering process; first, 100 parts of hydrogenated nitrile rubber is weighed by parts in weight, put into a mixing mill to be plasticated; and then 2 to 20 parts of metal oxide, 1 to 5 parts of stearic acid, 5 to 100 parts of acrylate, 10 to 70 parts of carbon black, 1 to 6 parts of aging inhibitor, 5 to 30 parts of plasticizer, 2 to 10 parts of antiscorcher, 2 to 10 parts of vulcanizer and 2 to 10 parts of vulcanization aid are sequentially added into the mixing mill to be mixed uniformly; mixing rubber is vulcanized primarily in a plate vulcanizing press, the vulcanizing temperature is controlled to be 150 to 180DEG C, the vulcanizing time is 20 to 40min, and the vulcanizing pressure is 10 to 20MPa; after being taken out from the plate vulcanizing press, the rubber is secondarily vulcanized at 150 to 180DEG C to obtain vulcanized rubber with excellent performance; and the preparation method of the high temperature and high pressure resistant rubber sealing material has the advantages of simple process, convenient operation and use, low preparation cost, excellent mechanical performance, and in particular better high-temperature mechanical performance.

Description

Technical field: [0001] The invention belongs to the technical field of rubber sealing materials, and relates to a preparation method of a high-temperature and high-pressure resistant rubber sealing material that can be applied in deep oil recovery engineering processes in oil fields. Background technique: [0002] With the continuous development of oil and gas fields, in order to achieve high and stable oil production, domestic oil fields have gradually turned their attention to deep wells, ultra-deep wells and thermal recovery wells, using staged water injection, staged fracturing, and staged water shutoff for construction. In the implementation of the existing oil production engineering process, the oil field packer is a key component in oil production, and the rubber sleeve is the key to the packer. Under the action of hydraulic thrust, the rubber sleeve is compressed by axial compression force On the wall of the packer casing, it acts as a seal for the casing. As the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08K13/02C08K3/22C08K3/04C08K5/098C08K5/14C08J3/24E21B33/127
Inventor 李再峰王增林董慧民孙宝全李敢王民轩
Owner QINGDAO UNIV OF SCI & TECH
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