CN102676135A - Method for preparing cationic fluid loss agent - Google Patents
Method for preparing cationic fluid loss agent Download PDFInfo
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- CN102676135A CN102676135A CN2012101312764A CN201210131276A CN102676135A CN 102676135 A CN102676135 A CN 102676135A CN 2012101312764 A CN2012101312764 A CN 2012101312764A CN 201210131276 A CN201210131276 A CN 201210131276A CN 102676135 A CN102676135 A CN 102676135A
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- fluid loss
- loss agent
- cationic fluid
- preparation
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Abstract
The invention discloses a method for preparing a cationic fluid loss agent. The method includes adding water in a reaction kettle, adding acrylic acids and calcium oxide, reacting to obtain a transparent mixed liquid, adding acrylamide and 2-hydroxy-3-methylacryloyloxypropyltrimethyl ammonium chloride, evenly stirring, adjusting the potential of hydrogen (Ph) value of a system to 9-11 by adding a 48% of potassium hydroxide solution, transferring a reaction mixture of monomers to a polymerizer, adding ammonium persulfate and sodium bidulfite to undertake a reaction and to generate a gel-like product, shearing, granulating, drying and smashing so as to obtain a finished cationic fluid loss agent. By means of the method, the prepared cationic fluid loss agent is an amphiprotic ionic type polymer and soluble in water, the water solution is alkaline. The prepared cationic fluid loss agent serving as a drilling liquid fluid loss agent has good capacities of resisting to high temperature, salt and certain calcium and magnesium pollutions, and also has a good collapse-preventing effect, the stratum mud making can be effectively controlled, the dispersion of clays and drilling cuttings is restrained, and simultaneously the fluid loss agent has flocculation and coating effects.
Description
Technical field
The present invention relates to a kind of preparation method of positively charged ion fluid loss agent.
Background technology
Cationic fluid loss agent is a kind of amphoteric ion type polymkeric substance; Water soluble, the aqueous solution are alkalescence, as filtrate reducer for drilling fluid; Not only have temperature resistance, anti-salt and certain anticalcium, the ability that magnesium pollutes preferably; But also have anti sloughing effectiveness preferably, and can control the stratum effectively and make slurry, suppress clay and drilling cuttings dispersion, also have flocculation simultaneously and encapsulate effect.
Summary of the invention
The invention provides a kind of preparation method of positively charged ion fluid loss agent, the cationic fluid loss agent that this method makes is a kind of amphoteric ion type polymkeric substance, water soluble; The aqueous solution is alkalescence; As filtrate reducer for drilling fluid, not only have temperature resistance, anti-salt and certain anticalcium, the ability that magnesium pollutes preferably, but also have anti sloughing effectiveness preferably; Can control the stratum effectively and make slurry, suppress clay and drilling cuttings dispersion, also have flocculation simultaneously and encapsulate effect.
The present invention has adopted following technical scheme: a kind of preparation method of cationic fluid loss agent may further comprise the steps: after in reaction kettle, putting into water, add vinylformic acid and quicklime; Under agitation react transparent, then in reaction kettle, add acrylic amide to mixed solution, treat acrylic amide dissolving after; Add 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, the back that stirs transfers to 9-11 with 48% potassium hydroxide solution with the pH value of system, and intensification; Then monomeric reaction mixture is transferred in the polymerizer; Add ammonium persulphate and after after a while, react with sodium sulfite anhy 96, generation gel product, with products therefrom through shear granulation; The oven dry, pulverize finished product positively charged ion fluid loss agent.
The mass ratio of said water, vinylformic acid, quicklime, acrylic amide, 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, ammonium persulphate and sodium sulfite anhy 96 is 550:40:15:120:150:1:1; Be warming up to 40 ℃ after with 48% potassium hydroxide solution the pH value of system being transferred to 9-11 in the said step; React after adding ammonium persulphate and sodium sulfite anhy 96 10min in the said step, generate the gel product; The gel product is dried down in 150-160 ℃ after shear granulation in the said step.
The present invention has following beneficial effect: the cationic fluid loss agent that the present invention makes is a kind of amphoteric ion type polymkeric substance; Water soluble, the aqueous solution are alkalescence, as filtrate reducer for drilling fluid; Not only have temperature resistance, anti-salt and certain anticalcium, the ability that magnesium pollutes preferably; But also have anti sloughing effectiveness preferably, and can control the stratum effectively and make slurry, suppress clay and drilling cuttings dispersion, also have flocculation simultaneously and encapsulate effect.
Embodiment
The invention provides a kind of preparation method of cationic fluid loss agent, may further comprise the steps: after in reaction kettle, putting into water, add vinylformic acid and quicklime; Under agitation react transparent, then in reaction kettle, add acrylic amide to mixed solution, treat acrylic amide dissolving after; Add 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, the back that stirs transfers to 9-11 with 48% potassium hydroxide solution with the pH value of system, and is warming up to 40 ℃; Then monomeric reaction mixture is transferred in the polymerizer; Add ammonium persulphate and react through behind the 10min with sodium sulfite anhy 96, generation gel product, with products therefrom through shear granulation; In 150-160 ℃ of down oven dry, pulverize finished product positively charged ion fluid loss agent; The mass ratio of said water, vinylformic acid, quicklime, acrylic amide, 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, ammonium persulphate and sodium sulfite anhy 96 is 550:40:15:120:150:1:1.
Embodiment 1
After in the 1000L reaction kettle, putting into 550L water, add 40kg vinylformic acid, the 15kg quicklime under agitation reacts transparent to mixed solution; Then in reaction kettle, add acrylic amide 120kg, treat the acrylic amide dissolving after, add 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride 150kg, the back that stirs transfers to 9-11 with 48% potassium hydroxide solution with the pH value of system; And be warming up to 40 ℃, and monomeric reaction mixture is transferred in the polymerizer, add ammonium persulphate 1kg; Sodium sulfite anhy 96 1kg promptly reacts behind the 10min, generates the gel product; With products therefrom through shear granulation, in 150-160 ℃ of down oven dry, pulverize finished product positively charged ion fluid loss agent.
Claims (5)
1. the preparation method of a cationic fluid loss agent is characterized in that may further comprise the steps: after in reaction kettle, putting into water, add vinylformic acid and quicklime; Under agitation react transparent, then in reaction kettle, add acrylic amide to mixed solution, treat acrylic amide dissolving after; Add 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, the back that stirs transfers to 9-11 with 48% potassium hydroxide solution with the pH value of system, and intensification; Then monomeric reaction mixture is transferred in the polymerizer; Add ammonium persulphate and after after a while, react with sodium sulfite anhy 96, generation gel product, with products therefrom through shear granulation; The oven dry, pulverize finished product positively charged ion fluid loss agent.
2. the preparation method of a kind of cationic fluid loss agent according to claim 1 is characterized in that the mass ratio of said water, vinylformic acid, quicklime, acrylic amide, 2-hydroxy-3-methyl acryloyl-oxy oxypropyl trimethyl ammonium chloride, ammonium persulphate and sodium sulfite anhy 96 is 550:40:15:120:150:1:1.
3. the preparation method of a kind of cationic fluid loss agent according to claim 1 is warming up to 40 ℃ after it is characterized in that in the said step with 48% potassium hydroxide solution the pH value of system being transferred to 9-11.
4. the preparation method of a kind of cationic fluid loss agent according to claim 1 reacts after it is characterized in that adding ammonium persulphate and sodium sulfite anhy 96 10min in the said step, generates the gel product.
5. the preparation method of a kind of cationic fluid loss agent according to claim 1 is characterized in that the gel product is dried down in 150-160 ℃ in the said step after shear granulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101312764A CN102676135A (en) | 2012-05-02 | 2012-05-02 | Method for preparing cationic fluid loss agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101312764A CN102676135A (en) | 2012-05-02 | 2012-05-02 | Method for preparing cationic fluid loss agent |
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|---|---|
| CN102676135A true CN102676135A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101312764A Pending CN102676135A (en) | 2012-05-02 | 2012-05-02 | Method for preparing cationic fluid loss agent |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591527A (en) * | 2009-07-08 | 2009-12-02 | 中国石油大学(华东) | A kind of high temperature resistant anti-sloughing filtrate reducer for drilling fluid and preparation method thereof |
| US20100256018A1 (en) * | 2009-04-03 | 2010-10-07 | Halliburton Energy Services, Inc. | Methods of Using Fluid Loss Additives Comprising Micro Gels |
-
2012
- 2012-05-02 CN CN2012101312764A patent/CN102676135A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100256018A1 (en) * | 2009-04-03 | 2010-10-07 | Halliburton Energy Services, Inc. | Methods of Using Fluid Loss Additives Comprising Micro Gels |
| CN101591527A (en) * | 2009-07-08 | 2009-12-02 | 中国石油大学(华东) | A kind of high temperature resistant anti-sloughing filtrate reducer for drilling fluid and preparation method thereof |
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Application publication date: 20120919 |