CN102676131A - Method for preparing humic acid viscosity reducer for drilling fluid - Google Patents
Method for preparing humic acid viscosity reducer for drilling fluid Download PDFInfo
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- CN102676131A CN102676131A CN2012101312711A CN201210131271A CN102676131A CN 102676131 A CN102676131 A CN 102676131A CN 2012101312711 A CN2012101312711 A CN 2012101312711A CN 201210131271 A CN201210131271 A CN 201210131271A CN 102676131 A CN102676131 A CN 102676131A
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- drilling fluid
- humic acids
- humic acid
- depression agent
- sodium hydroxide
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Abstract
The invention discloses a method for preparing a humic acid viscosity reducer for drilling fluid. The method comprises the following steps of: 1, adding water into a reaction kettle, adding sodium hydroxide to form a sodium hydroxide solution, slowly adding humic acid, tannin extract and lignin sulfonate, and heating for certain time with stirring to obtain a mixed solution; 2, adding sodium sulfite and 36 percent formaldehyde solution into the mixed solution in the step 1 till full reaction; and 3, discharging after the reaction is finished, clearing the insoluble impurities, drying and crushing the obtained reaction product, and thus obtaining the humic acid viscosity reducer for the drilling fluid. The humic acid viscosity reducer for the drilling fluid has good temperature and salt resistance, can provide ideal rheological property for the drilling fluid, has certain loss reducing effect at the same time, and is suitable for water-based drilling fluid.
Description
Technical field
The present invention relates to the preparation method of a kind of drilling fluid with the humic acids viscosity-depression agent.
Background technology
The humic acids viscosity-depression agent belongs to a kind of modified product of natural materials humic acids; Nontoxic, pollution-free, soluble in water, the aqueous solution is chocolate, and these article are as drilling fluid thinner; Have heatproof, anti-salt property preferably; Drilling fluid ideal rheological can be provided, also have certain leakage effect of falling simultaneously, be applicable to water-base drilling fluid.
Summary of the invention
The invention provides the preparation method of a kind of drilling fluid with the humic acids viscosity-depression agent; The drilling fluid that makes has heatproof, anti-salt property preferably with the humic acids viscosity-depression agent; Drilling fluid ideal rheological can be provided, also have certain leakage effect of falling simultaneously, be applicable to water-base drilling fluid.
The present invention has adopted following technical scheme: a kind of drilling fluid is with the preparation method of humic acids viscosity-depression agent; May further comprise the steps: step 1; In reaction kettle, put into water, add sodium hydroxide then, be mixed with sodium hydroxide solution; Slowly add humic acids, tannin extract, sulfonated lignin then, warming while stirring for some time obtains mixed solution; Step 2 adds the formaldehyde solution of S-WAT and 36%, until reacting completely in the mixed solution in step 1; Step 3, after reaction finished, undissolved impurity was removed in discharging, with the oven dry of gained reaction product, pulverized then, promptly obtained drilling fluid and used the humic acids viscosity-depression agent.
The mass ratio of said water, sodium hydroxide, humic acids, tannin extract, sulfonated lignin, S-WAT, 36% formaldehyde solution is 500:28:150:50:45:50:50; Be warming up to 85 ℃ while stirring after adding humic acids, tannin extract, sulfonated lignin in the said step 1, stirred 1 hour, obtain mixed solution; Add in the said step 2 after the formaldehyde solution of S-WAT and 36% 90 ± 5 ℃ of reactions 4 hours down; After reaction finished in the said step 3, discharging was removed behind the undissolved impurity the gained reaction product 120 ± 5 ℃ of oven dry down.
The present invention has following beneficial effect: the drilling fluid that the present invention makes has heatproof, anti-salt property preferably with the humic acids viscosity-depression agent, and drilling fluid ideal rheological can be provided, and also has certain leakage effect of falling simultaneously, is applicable to water-base drilling fluid.
Embodiment
The invention provides the preparation method of a kind of drilling fluid with the humic acids viscosity-depression agent; May further comprise the steps: step 1; In reaction kettle, put into water, add sodium hydroxide then, be mixed with sodium hydroxide solution; Slowly add humic acids, tannin extract, sulfonated lignin then, warming while stirring for some time obtains mixed solution; Step 2 adds the formaldehyde solution of S-WAT and 36%, until reacting completely in the mixed solution in step 1; Step 3, after reaction finished, undissolved impurity was removed in discharging, with the oven dry of gained reaction product, pulverized then, promptly obtained drilling fluid and used the humic acids viscosity-depression agent; The mass ratio of said water, sodium hydroxide, humic acids, tannin extract, sulfonated lignin, S-WAT, 36% formaldehyde solution is 500:28:150:50:45:50:50; Be warming up to 85 ℃ while stirring after adding humic acids, tannin extract, sulfonated lignin in the said step 1, stirred 1 hour, obtain mixed solution; Add in the said step 2 after the formaldehyde solution of S-WAT and 36% 90 ± 5 ℃ of reactions 4 hours down; After reaction finished in the said step 3, discharging was removed behind the undissolved impurity the gained reaction product 120 ± 5 ℃ of oven dry down.
Embodiment 1
In the 1000L reaction kettle, put into 500L water, add 28kg sodium hydroxide, be mixed with sodium hydroxide solution, slowly add the 150kg humic acids then, tannin extract 50kg, sulfonated lignin 45kg,, warming while stirring to 85 ℃ was stirred 1 hour; After the question response time reaches, in mixed solution, add the formaldehyde solution 50kg of S-WAT 50kg and 36%, reacted 4 hours down at 90 ± 5 ℃; After reaction finished, undissolved impurity was removed in discharging, then the gained reaction product was dried down at 120 ± 5 ℃, pulverized, and promptly obtained drilling fluid and used the humic acids viscosity-depression agent.
Claims (5)
1. a drilling fluid is characterized in that may further comprise the steps with the preparation method of humic acids viscosity-depression agent:
Step 1 is put into water in reaction kettle, add sodium hydroxide then, is mixed with sodium hydroxide solution, slowly adds humic acids, tannin extract, sulfonated lignin then, and warming while stirring for some time obtains mixed solution;
Step 2 adds the formaldehyde solution of S-WAT and 36%, until reacting completely in the mixed solution in step 1;
Step 3, after reaction finished, undissolved impurity was removed in discharging, with the oven dry of gained reaction product, pulverized then, promptly obtained drilling fluid and used the humic acids viscosity-depression agent.
2. a kind of drilling fluid according to claim 1 is with the preparation method of humic acids viscosity-depression agent, it is characterized in that the mass ratio of said water, sodium hydroxide, humic acids, tannin extract, sulfonated lignin, S-WAT, 36% formaldehyde solution is 500:28:150:50:45:50:50.
3. a kind of drilling fluid according to claim 1 is with the preparation method of humic acids viscosity-depression agent, is warming up to 85 ℃ while stirring after it is characterized in that adding in the said step 1 humic acids, tannin extract, sulfonated lignin, stirs 1 hour, obtains mixed solution.
4. a kind of drilling fluid according to claim 1 is with the preparation method of humic acids viscosity-depression agent, it is characterized in that adding in the said step 2 after the formaldehyde solution of S-WAT and 36% 90 ± 5 ℃ of reactions 4 hours down.
5. a kind of drilling fluid according to claim 1 is with the preparation method of humic acids viscosity-depression agent, it is characterized in that reaction finishes in the said step 3 after, discharging is removed behind the undissolved impurity the gained reaction product 120 ± 5 ℃ of oven dry down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101312711A CN102676131A (en) | 2012-05-02 | 2012-05-02 | Method for preparing humic acid viscosity reducer for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101312711A CN102676131A (en) | 2012-05-02 | 2012-05-02 | Method for preparing humic acid viscosity reducer for drilling fluid |
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| Publication Number | Publication Date |
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| CN102676131A true CN102676131A (en) | 2012-09-19 |
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| CN2012101312711A Pending CN102676131A (en) | 2012-05-02 | 2012-05-02 | Method for preparing humic acid viscosity reducer for drilling fluid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753284A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院化学研究所 | A kind of viscosity reducer for crude oil and preparation method thereof |
| CN106833555A (en) * | 2017-01-24 | 2017-06-13 | 福州大学 | Method and its application of high-efficient drilling fluid thinner are prepared using percolate |
| CN106978152A (en) * | 2017-04-24 | 2017-07-25 | 平利县双泰重晶石粉有限责任公司 | A kind of barite thinner, its preparation method and application |
| CN114573737A (en) * | 2022-03-24 | 2022-06-03 | 长江大学 | Non-sulfonated viscosity reducer for drilling fluid and preparation method thereof |
| CN114605970A (en) * | 2022-03-24 | 2022-06-10 | 长江大学 | Humic acid resin filtrate reducer for drilling fluid and preparation method thereof |
| CN114891490A (en) * | 2022-03-24 | 2022-08-12 | 长江大学 | High-temperature-resistant biodegradable water-based drilling fluid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048403A (en) * | 1990-08-10 | 1991-01-09 | 辽河石油勘探局钻井一公司 | A kind of non-toxic viscosity-decreasing agent used for drilling mud |
-
2012
- 2012-05-02 CN CN2012101312711A patent/CN102676131A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048403A (en) * | 1990-08-10 | 1991-01-09 | 辽河石油勘探局钻井一公司 | A kind of non-toxic viscosity-decreasing agent used for drilling mud |
Non-Patent Citations (2)
| Title |
|---|
| 乌效鸣等: "《钻井液与岩土工程浆液》", 30 June 2002 * |
| 范洪富: "钻井液降粘剂HKSF的室内研究", 《石油与天然气化工》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753284A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院化学研究所 | A kind of viscosity reducer for crude oil and preparation method thereof |
| CN106753284B (en) * | 2017-01-05 | 2019-03-19 | 中国科学院化学研究所 | A kind of viscosity reducer for crude oil and preparation method thereof |
| CN106833555A (en) * | 2017-01-24 | 2017-06-13 | 福州大学 | Method and its application of high-efficient drilling fluid thinner are prepared using percolate |
| CN106833555B (en) * | 2017-01-24 | 2019-05-31 | 福州大学 | The method and its application of drilling fluid thinner are prepared using landfill leachate |
| CN106978152A (en) * | 2017-04-24 | 2017-07-25 | 平利县双泰重晶石粉有限责任公司 | A kind of barite thinner, its preparation method and application |
| CN114573737A (en) * | 2022-03-24 | 2022-06-03 | 长江大学 | Non-sulfonated viscosity reducer for drilling fluid and preparation method thereof |
| CN114605970A (en) * | 2022-03-24 | 2022-06-10 | 长江大学 | Humic acid resin filtrate reducer for drilling fluid and preparation method thereof |
| CN114891490A (en) * | 2022-03-24 | 2022-08-12 | 长江大学 | High-temperature-resistant biodegradable water-based drilling fluid |
| CN114891490B (en) * | 2022-03-24 | 2023-09-22 | 长江大学 | High-temperature-resistant biodegradable water-based drilling fluid |
| CN114605970B (en) * | 2022-03-24 | 2023-09-26 | 长江大学 | Humic acid resin filtrate reducer for drilling fluid and preparation method thereof |
| CN114573737B (en) * | 2022-03-24 | 2023-10-10 | 长江大学 | Non-sulfonated viscosity reducer for drilling fluid and preparation method thereof |
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Application publication date: 20120919 |