CN106336142A - Cement retarder for oil wells - Google Patents
Cement retarder for oil wells Download PDFInfo
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- CN106336142A CN106336142A CN201510395693.3A CN201510395693A CN106336142A CN 106336142 A CN106336142 A CN 106336142A CN 201510395693 A CN201510395693 A CN 201510395693A CN 106336142 A CN106336142 A CN 106336142A
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- ferrous sulfate
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Abstract
The invention relates to the technical field of retarders, especially to a cement retarder for oil wells. The cement retarder comprises the following components by mass: 5-12 parts of calcium lignosulfonate, 12-18 parts of sodium carboxymethylcellulose, 3-9 parts of carboxyethyl cellulose, 2.5-3.6 parts of tartaric acid, 1.8-3.5 parts of calcium sulfite, 2.5-3.8 parts of ferrous sulfate, 4.2-6.8 parts of disodium hydrogen phosphate, 4-10 parts of sodium pyrophosphate, and 15-25 parts of ethylenediamine tetraacetic acid disodium. With the formula, the retarder provided by the invention can take the industrial solid waste phosphorus slag powder as the main ingredient, the making cost is low, and also the use effect is not affected by the environment temperature. In addition, the cement retarder can effectively prolong the cement coagulation time, and by adjusting the ratio of cement content, the coagulation time can be changed.
Description
Technical field
The present invention relates to retarder technical field, particularly a kind of oil well cement retarder.
Background technology
Cement retarder is that one kind can postpone hydrated reaction of cement, thus extending the setting time of concrete, makes new
The mixed concrete long period keeps plasticity, convenient cast, improves efficiency of construction, simultaneously each to later concrete
Item performance does not result in dysgenic additive.
In general, the multipair greatly cement granules of organic retarder and the new phase surface of hydrated product have stronger
Active function, is adsorbed in solid particles surface, has delayed the formation of cement and paste structure.Mineral-type slow setting
Agent, often forms the thin film of one layer of indissoluble in cement particle surface, plays barrier work to the aquation of cement granules
With hindering the normal hydrated of cement.These effects all can lead to the hydration rate of cement to slow down, and extends water
The setting time of mud.
Content of the invention
The technical problem to be solved in the invention is to provide a kind of cement retarder of oil well.
For solving above-mentioned technical problem, the oil well cement retarder of the present invention, include according to mass fraction meter
Following components: toramil B 5-12 part, sodium carboxymethyl cellulose 12-18 part, carboxyethyl cellulose 3-9,
Tartaric acid 2.5-3.6 part, calcium sulfite 1.8-3.5 part, ferrous sulfate 2.5-3.8 part, disodium hydrogen phosphate
4.2-6.8 part, sodium pyrophosphate 4-10 part, disodiumedetate 15-25 part.
Further, include following components: 5 parts of toramil B, carboxymethyl cellulose according to mass fraction meter
12 parts of plain sodium, carboxyethyl cellulose 3,2.5 parts of tartaric acid, 1.8 parts of calcium sulfite, ferrous sulfate 2.5
Part, 4.2 parts of disodium hydrogen phosphate, 4 parts of sodium pyrophosphate, 15 parts of disodiumedetate.
Further, include following components: 12 parts of toramil B according to mass fraction meter, carboxymethyl is fine
Plain 18 parts of the sodium of dimension, carboxyethyl cellulose 9,3.6 parts of tartaric acid, 3.5 parts of calcium sulfite, ferrous sulfate 3.8
Part, 6.8 parts of disodium hydrogen phosphate, 10 parts of sodium pyrophosphate, 25 parts of disodiumedetate.
Further, include following components: 8 parts of toramil B, carboxymethyl cellulose according to mass fraction meter
14 parts of plain sodium, carboxyethyl cellulose 5,2.9 parts of tartaric acid, 2.2 parts of calcium sulfite, ferrous sulfate 3.1
Part, 4.8 parts of disodium hydrogen phosphate, 5 parts of sodium pyrophosphate, 18 parts of disodiumedetate.
Further, include following components: 10 parts of toramil B according to mass fraction meter, carboxymethyl is fine
Plain 16 parts of the sodium of dimension, carboxyethyl cellulose 8,3.2 parts of tartaric acid, 2.9 parts of calcium sulfite, ferrous sulfate 3.5
Part, 5.5 parts of disodium hydrogen phosphate, 8 parts of sodium pyrophosphate, 23 parts of disodiumedetate.
After above-mentioned formula, industrial solid wastes phosphorus slag powder can be main component by the retarder of the present invention,
Not only low cost of manufacture, and using effect is not affected by ambient temperature；In addition, the present invention can be effective
The setting time of cement, by adjusting the ratio with cement content, changes setting time.
Specific embodiment
The oil well cement retarder of the present invention, includes following components according to mass fraction meter: toramil B
5-12 part, sodium carboxymethyl cellulose 12-18 part, carboxyethyl cellulose 3-9, tartaric acid 2.5-3.6 part,
Calcium sulfite 1.8-3.5 part, ferrous sulfate 2.5-3.8 part, disodium hydrogen phosphate 4.2-6.8 part, pyrophosphoric acid
Sodium 4-10 part, disodiumedetate 15-25 part.
Embodiment one:
Include following components: 5 parts of toramil B according to mass fraction meter, 12 parts of sodium carboxymethyl cellulose,
Carboxyethyl cellulose 3,2.5 parts of tartaric acid, 1.8 parts of calcium sulfite, 2.5 parts of ferrous sulfate, phosphoric acid hydrogen two
4.2 parts of sodium, 4 parts of sodium pyrophosphate, 15 parts of disodiumedetate.
Embodiment two:
Include following components: 12 parts of toramil B according to mass fraction meter, 18 parts of sodium carboxymethyl cellulose,
Carboxyethyl cellulose 9,3.6 parts of tartaric acid, 3.5 parts of calcium sulfite, 3.8 parts of ferrous sulfate, phosphoric acid hydrogen two
6.8 parts of sodium, 10 parts of sodium pyrophosphate, 25 parts of disodiumedetate.
Embodiment three:
Include following components: 8 parts of toramil B according to mass fraction meter, 14 parts of sodium carboxymethyl cellulose,
Carboxyethyl cellulose 5,2.9 parts of tartaric acid, 2.2 parts of calcium sulfite, 3.1 parts of ferrous sulfate, phosphoric acid hydrogen two
4.8 parts of sodium, 5 parts of sodium pyrophosphate, 18 parts of disodiumedetate.
Embodiment four:
Include following components: 10 parts of toramil B according to mass fraction meter, 16 parts of sodium carboxymethyl cellulose,
Carboxyethyl cellulose 8,3.2 parts of tartaric acid, 2.9 parts of calcium sulfite, 3.5 parts of ferrous sulfate, phosphoric acid hydrogen two
5.5 parts of sodium, 8 parts of sodium pyrophosphate, 23 parts of disodiumedetate.
Although the foregoing describing the specific embodiment of the present invention, those skilled in the art should manage
Solution, these are merely illustrative of, and can make various changes or modifications to present embodiment, without departing from send out
Bright principle and essence, protection scope of the present invention is only limited by the claims that follow.
Claims (5)
1. a kind of oil well cement retarder is it is characterised in that include following components according to mass fraction meter: wooden
Sulfonic acid calcium salt 5-12 part, sodium carboxymethyl cellulose 12-18 part, carboxyethyl cellulose 3-9, tartaric acid 2.5-3.6
Part, calcium sulfite 1.8-3.5 part, ferrous sulfate 2.5-3.8 part, disodium hydrogen phosphate 4.2-6.8 part, Jiao
Sodium phosphate 4-10 part, disodiumedetate 15-25 part.
2. according to the oil well cement retarder described in claim 1 it is characterised in that according to mass fraction meter bag
Include following components: 5 parts of toramil B, 12 parts of sodium carboxymethyl cellulose, carboxyethyl cellulose 3, wine
2.5 parts of stone acid, 1.8 parts of calcium sulfite, 2.5 parts of ferrous sulfate, 4.2 parts of disodium hydrogen phosphate, pyrophosphoric acid
4 parts of sodium, 15 parts of disodiumedetate.
3. according to the oil well cement retarder described in claim 1 it is characterised in that according to mass fraction meter bag
Include following components: 12 parts of toramil B, 18 parts of sodium carboxymethyl cellulose, carboxyethyl cellulose 9, wine
3.6 parts of stone acid, 3.5 parts of calcium sulfite, 3.8 parts of ferrous sulfate, 6.8 parts of disodium hydrogen phosphate, pyrophosphoric acid
10 parts of sodium, 25 parts of disodiumedetate.
4. according to the oil well cement retarder described in claim 1 it is characterised in that according to mass fraction meter bag
Include following components: 8 parts of toramil B, 14 parts of sodium carboxymethyl cellulose, carboxyethyl cellulose 5, wine
2.9 parts of stone acid, 2.2 parts of calcium sulfite, 3.1 parts of ferrous sulfate, 4.8 parts of disodium hydrogen phosphate, pyrophosphoric acid
5 parts of sodium, 18 parts of disodiumedetate.
5. according to the oil well cement retarder described in claim 1 it is characterised in that according to mass fraction meter bag
Include following components: 10 parts of toramil B, 16 parts of sodium carboxymethyl cellulose, carboxyethyl cellulose 8, wine
3.2 parts of stone acid, 2.9 parts of calcium sulfite, 3.5 parts of ferrous sulfate, 5.5 parts of disodium hydrogen phosphate, pyrophosphoric acid
8 parts of sodium, 23 parts of disodiumedetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395693.3A CN106336142A (en) | 2015-07-07 | 2015-07-07 | Cement retarder for oil wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395693.3A CN106336142A (en) | 2015-07-07 | 2015-07-07 | Cement retarder for oil wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106336142A true CN106336142A (en) | 2017-01-18 |
Family
ID=57826398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510395693.3A Pending CN106336142A (en) | 2015-07-07 | 2015-07-07 | Cement retarder for oil wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106336142A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188451A (en) * | 2017-07-17 | 2017-09-22 | 重庆石博士新材料有限公司 | A kind of long-acting retarder and preparation method thereof |
| CN110092868A (en) * | 2019-04-16 | 2019-08-06 | 卫辉市化工有限公司 | A kind of oil-well cement suspension type polymerization object retarder and preparation method and oil-well cement slurry system |
| CN110590218A (en) * | 2019-09-02 | 2019-12-20 | 普定县银丰农业科技发展有限公司 | Concrete retarder and preparation method thereof |
-
2015
- 2015-07-07 CN CN201510395693.3A patent/CN106336142A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188451A (en) * | 2017-07-17 | 2017-09-22 | 重庆石博士新材料有限公司 | A kind of long-acting retarder and preparation method thereof |
| CN107188451B (en) * | 2017-07-17 | 2019-09-03 | 重庆石博士新材料有限公司 | A kind of long-acting retarder and preparation method thereof |
| CN110092868A (en) * | 2019-04-16 | 2019-08-06 | 卫辉市化工有限公司 | A kind of oil-well cement suspension type polymerization object retarder and preparation method and oil-well cement slurry system |
| CN110092868B (en) * | 2019-04-16 | 2021-07-16 | 卫辉市化工有限公司 | Oil well cement suspension type polymer retarder, preparation method and oil well cement paste system |
| CN110590218A (en) * | 2019-09-02 | 2019-12-20 | 普定县银丰农业科技发展有限公司 | Concrete retarder and preparation method thereof |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170118 |