CN101332681A - Preparation method of heat-proof, abrasion-proof cementing plug - Google Patents
Preparation method of heat-proof, abrasion-proof cementing plug Download PDFInfo
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- CN101332681A CN101332681A CNA2008101380905A CN200810138090A CN101332681A CN 101332681 A CN101332681 A CN 101332681A CN A2008101380905 A CNA2008101380905 A CN A2008101380905A CN 200810138090 A CN200810138090 A CN 200810138090A CN 101332681 A CN101332681 A CN 101332681A
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- rubber
- vulcanizing agent
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- butadiene rubber
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Abstract
The invention relates to a preparation method used for a heat-resistance and wearable cementing rubber plug, belonging to the field of processing method of rubber sealing parts. The technical proposal of the preparation method is that rubber, vulcanizing agent, accelerant, activating agent zinc oxide, stearic acid, anti-aging agnet and a high-wearability carbon block are compounded, internally mixed, prepared as sheets, formed, vulcanized and checked so as to prepare the cementing rubber plug; wherein, the vulcanizing agent adopts a DCP vulcanizing agent; the rubber is compounded in a mixing way by nitrile butadiene rubber and styrene butadiene rubber; the anti-aging agent is 4010NA anti-aging agent. The rubber plug which is prepared by mixing the nitrile butadiene rubber and the styrene butadiene rubber has the tensile strength of more than 20MPa, tensile stretch of 650-700%, hot air aging coefficient of 0.88 under the temperature of 120 DEG C for 24 hours, the friction dissipation of 0.6<3>cm/1.61km, and can meet the cementing operation requirement of deep well more than 3km deep.
Description
Technical field
The present invention relates to the preparation method of a kind of heat-resisting, the wear-resisting cementing plug in the processing method field of rubber seal.
Background technology
Cementing plug is an indispensable seal in the well cementation machinery.The material composition of preparation plug has at present: butadiene-styrene rubber 100, vulcanizing agent DCP2.0, accelerant CZ 1.5, activating agent zinc oxide 5.0, stearic acid 2.0, anti-aging agent RD 2.0, high wear-resistant carbon black 30.0; Manufacturing procedure is: batching-banburying-slice-moulding-sulfuration-check-packing warehouse-in.The plug that adopts above-mentioned preparation method to process is heat-resisting and wearability is relatively poor, and tensile strength and percentage elongation are lower, causes the service life of plug short.
Summary of the invention
Purpose of the present invention is exactly the defective that exists at prior art, provides a kind of heat-resisting and wearability is good, tensile strength and percentage elongation height, the preparation method of heat-resisting, the wear-resisting cementing plug of long service life.
Proposition of the present invention is an employed raw-material performance difference in analyzing summary prior art scheme, on the basis through material analysis research and experiment repeatedly, use acrylonitrile-butadiene rubber instead and butadiene-styrene rubber is mixed, select age resistor for use the 4010NA age resistor, adjust raw-material allocation ratio simultaneously.
Its technical scheme is: be that rubber, vulcanizing agent, promoter, activating agent zinc oxide, stearic acid, age resistor and high wear-resistant carbon black are made through batching, banburying, slice, moulding, sulfuration and inspection process, wherein vulcanizing agent adopts the DCP vulcanizing agent, promoter is adopted CZ promoter, described rubber adopts acrylonitrile-butadiene rubber and butadiene-styrene rubber to be mixed, and described age resistor is the 4010NA age resistor.
Described raw-material weight portion is respectively: acrylonitrile-butadiene rubber 65-75, butadiene-styrene rubber 25-35, vulcanizing agent 1-3, promoter 1-2, activating agent zinc oxide 5-15, stearic acid 1-2, age resistor 2-4, high wear-resistant carbon black 30-40.
The contrast of the effect of the technology of the present invention and prior art: the hot strength of existing plug generally at the 16MPa. percentage elongation between 450-500%, 120 ℃ * 24h hot air aging coefficient is 0.65, abrasion are 0.9
3Cm/1.61km.And the plug hot strength that acrylonitrile-butadiene rubber and butadiene-styrene rubber are used making with is generally more than 20MPa, and percentage elongation is between 650-700%, and 120 ℃ * 24h hot air aging coefficient is 0.88, and abrasion are 0.6
3Cm/1.61km.Existing plug only is applicable to the shallow well well cementing operation that two kms are above, and plug of the present invention can satisfy the following deep well cementing job requirements of three kms, and the field trial reflection is good.
The specific embodiment
Embodiment 1, various raw material pressed the row weight portion take by weighing: acrylonitrile-butadiene rubber 50, butadiene-styrene rubber 50, DCP vulcanizing agent 2, CZ promoter 1.5, activating agent zinc oxide 5, stearic acid 2,4010NA age resistor 2, high wear-resistant carbon black 35.Above-mentioned raw material are made through batching, banburying, slice, moulding, sulfuration and inspection process.
Embodiment 2, various raw material are pressed the row weight portion take by weighing: acrylonitrile-butadiene rubber 70, butadiene-styrene rubber 30, DCP vulcanizing agent 2, CZ promoter 1.5, activating agent zinc oxide 10, stearic acid 2,4010NA age resistor 3, high wear-resistant carbon black 35.Above-mentioned raw material are made through batching, banburying, slice, moulding, sulfuration and inspection process.
Embodiment 3, various raw material are pressed the row weight portion take by weighing: acrylonitrile-butadiene rubber 65, butadiene-styrene rubber 35, DCP vulcanizing agent 1.5, CZ promoter 2, activating agent zinc oxide 10, stearic acid 2,4010NA age resistor 3, high wear-resistant carbon black 30.Above-mentioned raw material are made through batching, banburying, slice, moulding, sulfuration and inspection process.
Claims (2)
1, a kind of preparation method of heat-resisting, wear-resisting cementing plug, be that rubber, vulcanizing agent, promoter, activating agent zinc oxide, stearic acid, age resistor and high wear-resistant carbon black are made through batching, banburying, slice, moulding, sulfuration and inspection process, wherein vulcanizing agent adopts the DCP vulcanizing agent, promoter is adopted CZ promoter, it is characterized in that: described rubber adopts acrylonitrile-butadiene rubber and butadiene-styrene rubber to be mixed, and described age resistor is the 4010NA age resistor.
2, the preparation method of heat-resisting, wear-resisting cementing plug according to claim 1, it is characterized in that described raw-material weight portion is respectively: acrylonitrile-butadiene rubber 65-75; butadiene-styrene rubber 25-35; vulcanizing agent 1-3; promoter 1-2, activating agent zinc oxide 5-15, stearic acid 1-2; age resistor 2-4, high wear-resistant carbon black 30-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101380905A CN101332681A (en) | 2008-07-16 | 2008-07-16 | Preparation method of heat-proof, abrasion-proof cementing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101380905A CN101332681A (en) | 2008-07-16 | 2008-07-16 | Preparation method of heat-proof, abrasion-proof cementing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101332681A true CN101332681A (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101380905A Pending CN101332681A (en) | 2008-07-16 | 2008-07-16 | Preparation method of heat-proof, abrasion-proof cementing plug |
Country Status (1)
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| CN (1) | CN101332681A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104877205A (en) * | 2015-06-19 | 2015-09-02 | 江苏华神特种橡胶制品股份有限公司 | Wear and aging-resistant rubber |
| CN105542249A (en) * | 2016-02-22 | 2016-05-04 | 桐乡市搏腾贸易有限公司 | High-wear-resistance mechanical sealing material and preparation method thereof |
| CN106009115A (en) * | 2016-08-05 | 2016-10-12 | 咸阳时代特种密封科技有限公司 | High-hardness rubber, and preparation method and application thereof |
| CN106366391A (en) * | 2016-08-26 | 2017-02-01 | 枣阳市恒泰化工有限公司 | Preparation method of high-strength heat-resistant oil field well cementation rubber plug |
| CN114479215A (en) * | 2022-02-18 | 2022-05-13 | 黄石大成机电设备安装有限公司 | Novel mechanical sealing material and preparation method thereof |
-
2008
- 2008-07-16 CN CNA2008101380905A patent/CN101332681A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104877205A (en) * | 2015-06-19 | 2015-09-02 | 江苏华神特种橡胶制品股份有限公司 | Wear and aging-resistant rubber |
| CN105542249A (en) * | 2016-02-22 | 2016-05-04 | 桐乡市搏腾贸易有限公司 | High-wear-resistance mechanical sealing material and preparation method thereof |
| CN106009115A (en) * | 2016-08-05 | 2016-10-12 | 咸阳时代特种密封科技有限公司 | High-hardness rubber, and preparation method and application thereof |
| CN106009115B (en) * | 2016-08-05 | 2018-02-09 | 咸阳时代特种密封科技有限公司 | High durometer rubber and its preparation method and application |
| CN106366391A (en) * | 2016-08-26 | 2017-02-01 | 枣阳市恒泰化工有限公司 | Preparation method of high-strength heat-resistant oil field well cementation rubber plug |
| CN114479215A (en) * | 2022-02-18 | 2022-05-13 | 黄石大成机电设备安装有限公司 | Novel mechanical sealing material and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081231 |