CN100537700C - A kind of preparation method of high-temperature cross-linking agent - Google Patents
A kind of preparation method of high-temperature cross-linking agent Download PDFInfo
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- CN100537700C CN100537700C CNB200710117603XA CN200710117603A CN100537700C CN 100537700 C CN100537700 C CN 100537700C CN B200710117603X A CNB200710117603X A CN B200710117603XA CN 200710117603 A CN200710117603 A CN 200710117603A CN 100537700 C CN100537700 C CN 100537700C
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Abstract
A kind of preparation method of high-temperature cross-linking agent, when being applied to tertiary oil production in oil field, the linking agent of interpolation.Solution when carrying out tertiary oil recovery, the problem of linking agent non-refractory.Feature is: high-temperature cross-linking agent, feed composition weight ratio: A, chromium acetate: 8～12%; B, phenol: 10～15%; C, urotropine: 5～8%; D, formaldehyde: 24～45%; E, Resorcino: 0.05～1%; F, water: 20～40%.Effect is: this high-temperature cross-linking agent, below 120 ℃, good stability has stronger gel effect in temperature.When carrying out polymer flooding, solved the problem of linking agent non-refractory.
Description
Technical field
The invention belongs to petroleum industry chemical technical field, relate in particular to and a kind ofly add anti-95 ℃～110 ℃ pyritous linking agents in system when being used for tertiary oil recovery.Solution when carrying out tertiary oil recovery, the problem of linking agent non-refractory.
Background technology
At present, in the oilfield development process, when carrying out tertiary oil recovery, usually need in the oil well system, add linking agent and form gel, but some linking agents be arranged under hot conditions, lose effect, not reach due effect.In addition, existing linking agent cost height, the source of goods is few, and crosslinked ability is relatively poor, and is little to the adsorptive power on stratum, still can not reach the validity period that keeps long.
Summary of the invention
The objective of the invention is: the preparation method that a kind of high-temperature cross-linking agent is provided.Produce high-temperature cross-linking agent, solve when carrying out tertiary oil recovery the problem of linking agent non-refractory.
The technical scheme that the present invention is taked for its technical problem of solution is:
One, the raw material of high-temperature cross-linking agent and prescription:
Raw material comprises:
1, chromium acetate (content of chromium ion 10% ± 0.5%);
2, phenol (industrial goods, content is greater than 98%);
3, urotropine (hexamethylenetetramine) (industrial goods);
4, formaldehyde (industrial goods, formaldehyde content 10% ± 0.5%);
5, Resorcino (industrial goods);
6, water.
Produce the feed composition weight ratio of high-temperature cross-linking agent:
A, chromium acetate (content of chromium ion 10% ± 0.5%): 8～12%
B, phenol (industrial goods, content is greater than 98%): 10～15%
C, urotropine (hexamethylenetetramine) (industrial goods): 5～8%
D, formaldehyde (industrial goods, formaldehyde content 10% ± 0.5%) 24～45%
E, Resorcino (industrial goods): 0.05～1%;
F, water: 20～40%
Two, the production method of high-temperature cross-linking agent
Major equipment:
Enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.
Production method:
At first, add entry, be heated to 40 ℃ ± 2 ℃ simultaneously at reactor, add liquefied carbolic acid, Resorcino after dissolving then, stir after 10 minutes, when temperature reaches 40 ℃, slowly add formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added urotropine again, add chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
The invention has the beneficial effects as follows: the high-temperature cross-linking agent of present method preparation, below 120 ℃, good stability has stronger gel effect in temperature.When carrying out polymer flooding, solved the problem of linking agent non-refractory.
Embodiment
Utilize the present invention after 95 ℃ of stratum medial temperatures, two oil reservoirs of 110 ℃ are used, accumulative total increases 4.35 ten thousand tons of oil.
Embodiment 1: the prescription and the production technique of high-temperature cross-linking agent are: at first, the water that adds weight ratio 35% at reactor, be heated to 40 ℃ ± 2 ℃ simultaneously, the liquefied carbolic acid that adds 12% after dissolving then, 0.3% Resorcino, stir after 10 minutes, when temperature reaches 40 ℃, slowly add 36% formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added 6% urotropine again, add 10.7% chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
Embodiment 2: at first, the water that adds weight ratio 32.71% at reactor, be heated to 40 ℃ ± 2 ℃ simultaneously, add the liquefied carbolic acid of 13.7% after dissolving, 0.09% Resorcino then, stir after 10 minutes, when temperature reaches 40 ℃, slowly add 43% formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added 5.4% urotropine again, add 8.5% chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
Embodiment 3: at first, the water that adds weight ratio 30.55% at reactor, be heated to 40 ℃ ± 2 ℃ simultaneously, add the liquefied carbolic acid of 13.7% after dissolving, 0.15% Resorcino then, stir after 10 minutes, when temperature reaches 40 ℃, slowly add 39% formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added 7% urotropine again, add 9.6% chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
Embodiment 4: at first, the water that adds weight ratio 39.7% at reactor, be heated to 40 ℃ ± 2 ℃ simultaneously, add the liquefied carbolic acid of 14.5% after dissolving, 0.7% Resorcino then, stir after 10 minutes, when temperature reaches 40 ℃, slowly add 26% formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added 7.5% urotropine again, add 11.6% chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
Claims (1)
1, a kind of preparation method of high-temperature cross-linking agent is characterized in that:
The feed composition weight ratio:
A, chromium acetate: 8～12%;
B, phenol: 10～15%;
C, urotropine: 5～8%;
D, formaldehyde: 24～45%;
E, Resorcino: 0.05～1%;
F, water: 20～40%,
Major equipment: enamel reaction still with 2000L of stirring, heating, refrigerating function;
Production method: at first, add entry, be heated to 40 ℃ ± 2 ℃ simultaneously at reactor, add liquefied carbolic acid, Resorcino after dissolving then, stir after 10 minutes, when temperature reaches 40 ℃, slowly add formaldehyde from the reactor top, stirred 20 minutes, and in reactor, added urotropine again, add chromium acetate at last, stir after 30 minutes, stop to stir, the various chemical agent reactions that add in the question response still are after 20 minutes, and discharging obtains high-temperature cross-linking agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710117603XA CN100537700C (en) | 2007-06-20 | 2007-06-20 | A kind of preparation method of high-temperature cross-linking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200710117603XA CN100537700C (en) | 2007-06-20 | 2007-06-20 | A kind of preparation method of high-temperature cross-linking agent |
Publications (2)
| Publication Number | Publication Date |
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| CN101074365A CN101074365A (en) | 2007-11-21 |
| CN100537700C true CN100537700C (en) | 2009-09-09 |
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| CNB200710117603XA Active CN100537700C (en) | 2007-06-20 | 2007-06-20 | A kind of preparation method of high-temperature cross-linking agent |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649194B (en) * | 2009-09-15 | 2012-11-14 | 克拉玛依市正诚有限公司 | Compound multivalent metallic ion crosslinking agent and production method and use method thereof |
| CN104194754A (en) * | 2014-08-29 | 2014-12-10 | 荆州市大地石油科技有限责任公司 | Temperature-resistant salt-resistant HPAM/Cr<3+>/phenolic aldehyde compound crosslinked weak gel profile adjusting and water plugging agent and preparation method thereof |
| CN104357032A (en) * | 2014-10-13 | 2015-02-18 | 中国石油化工股份有限公司 | High-temperature resistant secondary cross-linked gel profile control agent and preparation method thereof |
| CN104498006B (en) * | 2014-12-29 | 2017-10-31 | 中国石油天然气集团公司 | A kind of manufacture method of the manufacture method of crosslinking agent, crosslinking agent and profile control agent |
| CN110467892A (en) * | 2019-08-29 | 2019-11-19 | 昆山博益鑫成高分子材料有限公司 | A kind of crosslinking type aqueous adhesive and preparation method thereof |
| CN115261005A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Modifying and flooding agent and preparation method thereof |
-
2007
- 2007-06-20 CN CNB200710117603XA patent/CN100537700C/en active Active
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| CN101074365A (en) | 2007-11-21 |
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