CN1313561C - Process for preparing inorganic filler type water absorption resin by underground polymerization - Google Patents
Process for preparing inorganic filler type water absorption resin by underground polymerization Download PDFInfo
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- CN1313561C CN1313561C CNB2004100779680A CN200410077968A CN1313561C CN 1313561 C CN1313561 C CN 1313561C CN B2004100779680 A CNB2004100779680 A CN B2004100779680A CN 200410077968 A CN200410077968 A CN 200410077968A CN 1313561 C CN1313561 C CN 1313561C
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Abstract
The present invention relates to a technique for preparing inorganic stuffing-type water-absorption resin through underground polymerization in the field of high-molecule synthesis techniques, which has the technical scheme that reaction raw materials are injected into underground, and the inorganic stuffing-type water-absorption resin is produced through reaction at formation temperature. The inorganic stuffing-type water-absorption resin is prepared from acrylamide monomer, acrylic monomer, alkali, inorganic stuffing, a crosslinking agent, an initiator and an auxiliary agent, wherein the acrylamide is 1 to 10% of the total amount of the solution, and the acrylic acid is 1 to 10%; the crosslinking agent is 0.01 to 1% of the total amount of the solution, the auxiliary agent is 0.01 to 1% of the total amount of the solution, and the inorganic stuffing is 1 to 10% of the total amount of the solution; processes of ground polymerization, granulation, drying, sieving, etc. are omitted; simultaneously, the product prepared by the present invention can produce great expanding action after expansion of the purpose horizon meeting with water, and thus, the inorganic stuffing-type water-absorption resin used for near-well water plugging and bottom water coning chemical partition boards has good effect.
Description
Technical field
The present invention relates to the macromolecule synthesising technology field, specifically, is the preparation technology that a kind of underground polymerization prepares inorganic filler type water absorption resin.
Background technology
Current, the inorganic filler type water absorption resin that contains that is used for the Water in Water Shutoff in Oil Field profile control all is to make at the surface facility equipment, because this amendment absorption speed is fast, make when it misses one's purpose layer position, it is saturated to have expanded, thereby can not produce big bloated plug power in the zone of interest position, especially when immediate vicinity of wellbore water blockoff and bottom water coning, the bloated plug power of the volume expansion type granular profile control agent of surface production is not enough, this patent proposes to add mineral filler on the basis of underground polymerization High hydrophilous resin, helps improving its use temperature, reduce cost, increase compressive strength.
Summary of the invention
The object of the present invention is to provide a kind of bottom water coning problem that can effectively solve oil field high temperature well, be used to increase the Sai Li and improve compressive strength and the underground polymerization of temperature resistant range prepares the preparation technology of inorganic filler type water absorption resin of rising.
The present invention is achieved in that the preparation technology who contains inorganic filler type water absorption resin is meant that reaction raw materials is injected underground back the reaction under formation temperature form, and its raw material consists of: acrylamide monomer, Acrylic Acid Monomer, alkali, mineral filler, linking agent, initiator, auxiliary agent etc.
Acrylamide is the 1-10% of solution total amount, and vinylformic acid 1-10%, alkali are 60～90% of Acrylic Acid Monomer, and linking agent is the 0.01-1% of solution total amount, and auxiliary agent is 0.01-1%, and mineral filler is 1-10%, and initiator is the 0.02-0.09% of solution total amount.
Described vinylformic acid needs neutralization, and the alkali of its neutralization usefulness is yellow soda ash, sodium hydroxide, potassium hydroxide or salt of wormwood etc.; Initiator is ammonium persulphate, Potassium Persulphate, hydrogen peroxide, benzoyl peroxide or azo-bis-isobutyl cyanide.
Described linking agent is Tiorco 677, polyvalent alcohol, glycerine, trolamine, N, two acrylic amine of N-methylene base or N, the two acrylic amine of N-dimethyl.
Its mineral filler is wilkinite, kaolin, clay or atlapulgite.
Auxiliary agent is EDTA disodium salt, EDTA tetra-na salt, ferrous sulfate or the Tripotassium iron hexacyanide.
Enamel still stirred pot mixing and stirring is used in polymerisable acrylamide monomer, Acrylic Acid Monomer and mineral filler, auxiliary agent, redox initiator, response delay agent etc. on the ground, pumped into underground then.Reaction generates the High hydrophilous resin that contains mineral filler under formation temperature, and this water-absorbing resin can produce bigger bloated plug power after the zone of interest position water-swelling of stratum.
The invention has the advantages that: the underground polymerization method that contains inorganic filler type water absorption resin of proposition, saved processes such as polymerization on the ground, granulation, drying, screening.Therefore simultaneously, bigger bloated plug effect can take place in the prepared product of the present invention behind the water-swellable of zone of interest position, is used for nearly well water blockoff and the bottom water coning chemical clapboard has effect preferably.
Embodiment
Example 1:
In the enamel stirring tank, acid vinyl monomer 200kg is added neutralizing agent, generate acid vinyl sodium salt, add 40% acrylamide 800kg, linking agent Tiorco 677 18kg, 9 tons of tap water or oil field mineralized waters again, wilkinite 400kg, an amount of polymerization starter ammonium persulphate 0.06% and auxiliary agent EDTA disodium salt 1%,, after stirring, pump into the stratum, closing well Hou Ning.After for some time, water filling drives a well.
Example 2:
In stirring tank with vinylformic acid 200kg, with sodium hydroxide (Acrylic Acid Monomer mole 60%) neutralization, add 40% acrylamide 300kg again, kaolin 400kg, 8.4 the ton mineralized water stirs, add linking agent polyvalent alcohol 2kg, an amount of initiator azo-bis-isobutyl cyanide 0.09% and auxiliary agent ferrous sulfate 0.01% again after, stir, pump into underground then or be mixed in proportion the back and inject the stratum that needs water blockoff continuously.
Example 3:
With vinylformic acid 200kg, 90% yellow soda ash with Acrylic Acid Monomer is neutralized to degree of neutralization 90%, and then add 40% acrylamide 625kg, atlapulgite 300kg, add 9 tons of mineralized waters, stir, add proper amount of cross-linking agent N, the two acrylic amine 0.08% of N-dimethyl, initiator hydrogen peroxidase 10 .02%, the auxiliary agent Tripotassium iron hexacyanide 0.05% etc. are constructed to the bottom water coning well then.
Claims (3)
1, underground polymerization prepares the preparation technology of inorganic filler type high magnification water-absorbing resin, it is characterized in that: reaction raw materials is injected underground back the reaction form under formation temperature, its raw material consists of: acrylamide monomer, Acrylic Acid Monomer, alkali is mineral filler with wilkinite, kaolin, clay or atlapulgite, with EDTA disodium salt, EDTA tetra-na salt, ferrous sulfate or the Tripotassium iron hexacyanide is auxiliary agent, linking agent, initiator
Wherein acrylamide is the 1-10% of solution total amount, and vinylformic acid 1-10%, alkali are Acrylic Acid Monomer 60～90%, and linking agent is the 0.01-1% of solution total amount, and auxiliary agent is 0.01-1%, and mineral filler is 1-10%, initiator 0.02～0.09%.
2, underground polymerization as claimed in claim 1 prepares the preparation technology of inorganic filler type high magnification water-absorbing resin, it is characterized in that: described vinylformic acid needs neutralization, and the alkali of its neutralization usefulness is yellow soda ash, sodium hydroxide, potassium hydroxide or salt of wormwood; Initiator is ammonium persulphate, Potassium Persulphate, hydrogen peroxide, benzoyl peroxide or azo-bis-isobutyl cyanide.
3, underground polymerization as claimed in claim 1 prepares the preparation technology of inorganic filler type high magnification water-absorbing resin, it is characterized in that: described linking agent is Tiorco 677, polyvalent alcohol, glycerine, trolamine, N, two acrylic amine of N-methylene base or N, the two acrylic amine of N-dimethyl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100779680A CN1313561C (en) | 2004-09-22 | 2004-09-22 | Process for preparing inorganic filler type water absorption resin by underground polymerization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100779680A CN1313561C (en) | 2004-09-22 | 2004-09-22 | Process for preparing inorganic filler type water absorption resin by underground polymerization |
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| Publication Number | Publication Date |
|---|---|
| CN1752172A CN1752172A (en) | 2006-03-29 |
| CN1313561C true CN1313561C (en) | 2007-05-02 |
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| CNB2004100779680A Expired - Fee Related CN1313561C (en) | 2004-09-22 | 2004-09-22 | Process for preparing inorganic filler type water absorption resin by underground polymerization |
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| CN103374343A (en) * | 2012-04-26 | 2013-10-30 | 天津大港油田滨港集团博弘石油化工有限公司 | Water-absorbent expanding material for profile-control displacement of reservoir oil and production method of material |
| CN105985483A (en) * | 2015-02-05 | 2016-10-05 | 中国石油天然气股份有限公司 | Inorganic core-coated polymer particles, preparation method and application thereof |
| CN106010492B (en) * | 2016-05-20 | 2018-11-13 | 重庆科技学院 | degradable high-strength temporary blocking agent and preparation method thereof |
| JP6713224B2 (en) * | 2017-09-27 | 2020-06-24 | Dic株式会社 | Dispersion for filler for concrete structure, method for manufacturing filler for concrete structure, and method for manufacturing concrete structure |
| CN108643881B (en) * | 2018-04-27 | 2020-04-14 | 中国石油大学(华东) | Chemical partition plate for controlling bottom water to rise and preparation method and application thereof |
| CN108728068A (en) * | 2018-06-15 | 2018-11-02 | 南京科技职业学院 | A kind of preparation method of the underground polymerization water shutoff agent of suitable high-temperature oil reservoir |
| CN108822816A (en) * | 2018-06-25 | 2018-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of molten GEL USED FOR PLUGGING WELL LOST CIRCULATION of loose sand theobromine and preparation method thereof |
| CN109053320A (en) * | 2018-07-24 | 2018-12-21 | 信阳市上天梯非金属矿管理区非金属矿技术开发应用研究所 | The bentonite of Sodium Polyacrylate intercalation modification assigns fertile water-retaining agent and preparation method thereof |
| CN110144198B (en) * | 2019-06-13 | 2021-12-03 | 中国石油天然气集团有限公司 | Gel plugging agent for oil-based drilling fluid and preparation method thereof |
| CN110330959A (en) * | 2019-08-01 | 2019-10-15 | 西南石油大学 | Liquid gum plug diverting agent and preparation method thereof |
| CN110387222B (en) * | 2019-08-01 | 2021-12-10 | 西南石油大学 | Porous gel plugging agent, preparation method and application thereof |
| CN114427375A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | Karst cave oil reservoir density selective water plugging system and preparation method thereof |
| CN113929816A (en) * | 2021-11-24 | 2022-01-14 | 四川轻化工大学 | High-strength profile control agent and preparation method thereof |
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