CN104449637B - A kind of semi-transparent membranous type profile control and water plugging oil displacement agent and preparation method thereof - Google Patents
A kind of semi-transparent membranous type profile control and water plugging oil displacement agent and preparation method thereof Download PDFInfo
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- CN104449637B CN104449637B CN201310533511.5A CN201310533511A CN104449637B CN 104449637 B CN104449637 B CN 104449637B CN 201310533511 A CN201310533511 A CN 201310533511A CN 104449637 B CN104449637 B CN 104449637B
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Abstract
The present invention shows a kind of semi-transparent membranous type profile control and water plugging oil displacement agent and preparation method thereof, the substance forms high-molecular compound by silica key connection polar amide group, use stability recurrent dosage form at selective oil-water type semi-permeable membrane space net structure again, with very strong heatproof, salt tolerant, resistance to salinity performance have preferable selection shut-off capacity, high permeability zone and macropore can be blocked, and generate certain section to improve ability.It can be used as the profile-controlling and plugging agent of oilfield economic adaptive type, fluid diverter.
Description
Technical field
The present invention relates to a kind of Novel technique of in-depth profile control, and chemical agent is enable to handle deep formation, to solve in a wide range of
Water filling contradiction, increase floood conformance volume, using selective penetrated property, to improve oil recovery factor.
Background technology
So far from the later stage eighties, water injection well Novel technique of in-depth profile control is increasingly concerned, and is developed to from individual well operation is started
Block whole implementation, from the exploitation of simple agent to current On Comprehensive Technique, how preferably improve old filed waterflooding extraction
Effect, raising ultimate recovery make pole contribution.More inexpensive technical adaptive type selective water plugging oil displacement agent is developed, deep profile controlling is made
The water flood field of processing can improve recovery ratio 5%~20% or so, the semi-transparent membranous type profile control and water plugging displacement of reservoir oil than the oil field not used
Agent is the good Novel technique of in-depth profile control chemical reagent of one of which, is main hair of the waterflooding oil field in terms of steady oil control water
Direction is opened up, is of great importance to improve oil recovery factor.
Invention content
The object of the present invention is to provide a kind of semi-transparent membranous type profile control and water plugging oil displacement agents and preparation method thereof, and the substance is by silica
It is keyed polar amide group and forms high-molecular compound, then dosage form is recurred into selective oil-water type semi-permeable membrane space with stability
Reticular structure has the resistance to salinity performance of very strong heat-resistant salt-resistant, has preferable selection shut-off capacity, can block high permeability zone
And macropore, and generate certain section improvement ability.It is final to improve oil recovery factor, it is another object of the present invention to
A kind of method preparing semi-transparent membranous type profile control and water plugging oil displacement agent side is provided.
The present invention is by montmorillonite type sodium soil mineral, acrylamide (AM), function monomer 16 or octadecyldimethyl
Dilute propyl ammonium chloride (C(16/18)DMAAC), acrylic acid (AA), 2- acrylamide-2-methylpro panesulfonic acids sodium (NaAMPS), hydrogen-oxygen
Change the monomer reactions such as sodium (NaOH), water to form.Each monomer of the present invention and the weight percent group of water become：
(1) montmorillonite type sodium soil mineral, acrylamide (AM), function monomer 16 or the dilute propyl chloride of octadecyldimethyl
Change ammonium (C(16/18)DMAAC), acrylic acid (AA), 2- acrylamide-2-methylpro panesulfonic acids sodium (NaAMPS), sodium hydroxide
(NaOH), the monomers such as water are matched according to following ratios；
The illiteracy 1 of (2) 5 to 15 weight % takes off stone-type sodium soil mineral
The acrylamide of (3) 1 to 20 weight %；
The sodium acrylate of (4) 0.01 to 1 weight %；
(5) 0.02 to 5 weight %2- acrylamide-2-methylpro panesulfonic acid sodium
The function monomer of (6) 0.01 to 0.1 amount % is the 16 or dilute propyl ammonium chloride (C of octadecyldimethyl(16/18)
) or in which a kind of or certain two kinds compound uses DMAAC；
The sodium hydroxide of (7) 0.05 to 0.5 weight %, remaining is water.
A method of producing semi-transparent membranous type profile control and water plugging oil displacement agent comprising following steps：
(1) montmorillonite type sodium soil mineral, acrylamide, 16 or the dilute propyl ammonium chloride of octadecyldimethyl, acrylic acid,
2- acrylamide-2-methylpro panesulfonic acids sodium, sodium hydroxide, water are proportionally matched；
(2) the good monomer of said ratio is subjected to solution in distilled water and is configured to solution, with 100-600 revs/min of speed
Stirring 10-45 minutes,
(3) initiation of used Sulfates composite catalyst generates free radicals and makes above-mentioned list the above aqueous solution under nitrogen protection
Precursor reactant becomes semi-transparent membranous type profile control and water plugging oil displacement agent.
Explanation：
(1) it is needed during with polymerisation in solution to solution nitrogen blowing 15-30 minutes, to remove the oxygen dissolved in solution,
Then composite catalyst is added under the protection of nitrogen, stirs 4-6 minutes.
(2) initial temperature for facilitating reaction of the invention controls within the scope of 10-45 DEG C.Preferred initial temperature is 20
±1℃.PH is 6-9, and the composite catalyst is that persulfate or peroxide compound the double propylene of methine with sodium hydrogensulfite
Amide system or persulfate compound azodiisobutyronitrile with sodium hydrogensulfite redox system.The amount one of composite catalyst
As be 0.0003-5% weight.It is compounded than being equal proportion.
(3) the object of the present invention is to provide a kind of selective oil-water type semi-permeable membrane space net structure, have very strong resistance to
The warm resistance to salinity performance of salt tolerant has preferable selection shut-off capacity, can block high permeability zone and macropore, and generate centainly
Section improves ability.It can be used as the profile-controlling and plugging agent of oilfield economic adaptive type, fluid diverter.
Specific implementation mode
It below will be according to specific embodiment to a kind of semi-transparent membranous type profile control and water plugging oil displacement agent provided by the invention and its life
Production process is described in detail.
Embodiment 1
A kind of semi-transparent membranous type profile control and water plugging oil displacement agent and its production
8g montmorillonite type sodium soil mineral, 20g acrylamides, 0.02g2- acrylamidos-are added in the beaker of 100ml
2- methyl propane sulfonic acid sodium, 0.2g acrylic acid, 0.12g sodium hydroxides, the dilute propyl ammonium chloride of 0.02g octadecyldimethyls are remaining
Water be put into beaker with certain ratio, beaker is put into the water-bath of 45 DEG C of constant temperature, nitrogen 30min is passed through, in nitrogen
Under protection, 0.4g composite catalysts are added, are stirred evenly, standing is polymerize, and the condensate of generation is taken out after 4h., is cut into thin
Grain, hot-air drier in dry 5h., as semi-transparent membranous type profile control and water plugging oil displacement agent, number is BX-1 waiting detections.
Embodiment 2
12g montmorillonite type sodium soil mineral, 17g acrylamides, 0.01g2- acrylamidos-are added in the beaker of 100ml
2- methyl propane sulfonic acid sodium, 0.1g acrylic acid, 0.09g sodium hydroxides, the dilute propyl ammonium chloride of 0.02g octadecyldimethyls are remaining
Water be put into beaker with certain ratio, beaker is put into the water-bath of 45 DEG C of constant temperature, nitrogen 30min is passed through, in nitrogen
Under protection, 0.3g composite catalysts are added, are stirred evenly, standing is polymerize, and the condensate of generation is taken out after 4h., is cut into thin
Grain, hot-air drier in dry 5h., as semi-transparent membranous type profile control and water plugging oil displacement agent, number is BX-2 waiting detections.
Embodiment 3
12g montmorillonite type sodium soil mineral, 16g acrylamides, 0.02g2- acrylamidos-are added in the beaker of 100ml
2- methyl propane sulfonic acid sodium, 0.15g acrylic acid, 0.1g sodium hydroxides, the dilute propyl ammonium chloride of 0.01g octadecyldimethyls are remaining
Water be put into beaker with certain ratio, beaker is put into the water-bath of 45 DEG C of constant temperature, nitrogen 30min is passed through, in nitrogen
Under protection, 0.3g composite catalysts are added, are stirred evenly, standing is polymerize, and the condensate of generation is taken out after 4h., is cut into thin
Grain, hot-air drier in dry 5h., as semi-transparent membranous type profile control and water plugging oil displacement agent, number is BX-3 waiting detections.
Detection (result such as following table) in terms of carrying out performance to the said goods.
Table 1 tests salt type and salt amount in water
| Sample number into spectrum | BX-1 | BX-2 | BX-3 |
| Saliferous (Na++Ca2+)×104mg/L | 15+2000 | 20+4000 | Tap water |
The relationship of swellbility and time in 2 brine of table
Note：90 DEG C of experimental temperature
Table 3.BX-3 samples shrink situation in crude oil
| Time | 0.5h | 1.5h | 2.5h | 3.5h | 7h | 19h | 2 days | 3 days | 4 days |
| Sample size (g) | 1.55 | 1.76 | 1.91 | 1.98 | 1.77 | 0.72 | 0.67 | 0.66 | 0.61 |
4 parallel pipe back-up sand experiment effect of table
The displacement of reservoir oil of table 5.BX-3 samples acts on
From the point of view of testing result above, the resistance to salinity ability of sample heatproof is high, and expander intensity is good, and expansion rate is slow,
Elasticity it is good, toughness is big, morphotropism is good, can migrate in reservoir enter oil deposit deep part, profile control be benefited it is efficient, selectivity it is good, increasing
Oily dewatering effect is notable.
Claims (1)
1. a kind of method producing semi-transparent membranous type profile control and water plugging oil displacement agent comprising following steps：It is characterized in that：In 100ml
Beaker in be added 12g montmorillonite type sodium soil mineral, 16g acrylamides, 0.02g2- acrylamide-2-methylpro panesulfonic acid sodium,
0.15g acrylic acid, 0.1g sodium hydroxides, 0.01g solution properties, remaining water is in certain proportion
It is put into beaker, beaker is put into the water-bath of 45 DEG C of constant temperature, is passed through nitrogen 30min, under nitrogen protection, addition 0.3g mixing
Catalyst stirs evenly, and standing is polymerize, and the condensate of generation is taken out after 4h, is cut into particulate, dry in hot-air drier
5h, as semi-transparent membranous type profile control and water plugging oil displacement agent.
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| CN201310533511.5A CN104449637B (en) | 2013-11-04 | 2013-11-04 | A kind of semi-transparent membranous type profile control and water plugging oil displacement agent and preparation method thereof |
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| CN104449637B true CN104449637B (en) | 2018-09-07 |
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| CN105399898B (en) * | 2015-12-15 | 2017-06-16 | 天津大学 | A kind of soluble amphoteric hydrophobic polymer retarder and preparation method and application |
| CN106634909A (en) * | 2016-12-12 | 2017-05-10 | 中国石油天然气股份有限公司 | Oil reservoir deep liquid flow diversion profile control agent and preparation method and application thereof |
| CN114907519A (en) * | 2022-05-23 | 2022-08-16 | 宁波锋成纳米科技有限公司 | Quaternary copolymerization synthesis temperature-resistant salt-resistant polyacrylamide, and preparation method and application thereof |
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| CN85102156B (en) * | 1985-04-05 | 1987-01-14 | 黑龙江省科学院技术物理研究所 | Method for mfg. combined super-absorbent material by radiation |
| CN1464007A (en) * | 2002-06-14 | 2003-12-31 | 中国石油天然气股份有限公司 | Temperature-resistant salt-resistant water-absorbent resin |
| CN102268166A (en) * | 2010-06-03 | 2011-12-07 | 北京化工大学 | Preparation method of terpolymer for oilfield water plugging |
| CN102532410A (en) * | 2011-12-22 | 2012-07-04 | 中国海洋石油总公司 | Hydrophobically associating polymer, preparation method and application thereof |
| CN103130954A (en) * | 2013-03-15 | 2013-06-05 | 西南石油大学 | Insertion plural gel granule and synthetic method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2348089A1 (en) * | 2010-01-26 | 2011-07-27 | S.P.C.M. Sa | Water-soluble polymers for oil recovery |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102156B (en) * | 1985-04-05 | 1987-01-14 | 黑龙江省科学院技术物理研究所 | Method for mfg. combined super-absorbent material by radiation |
| CN1464007A (en) * | 2002-06-14 | 2003-12-31 | 中国石油天然气股份有限公司 | Temperature-resistant salt-resistant water-absorbent resin |
| CN102268166A (en) * | 2010-06-03 | 2011-12-07 | 北京化工大学 | Preparation method of terpolymer for oilfield water plugging |
| CN102532410A (en) * | 2011-12-22 | 2012-07-04 | 中国海洋石油总公司 | Hydrophobically associating polymer, preparation method and application thereof |
| CN103130954A (en) * | 2013-03-15 | 2013-06-05 | 西南石油大学 | Insertion plural gel granule and synthetic method thereof |
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Effective date of registration: 20180801 Address after: 834000 Karamay Hongqi Road 42, 4, the Xinjiang Uygur Autonomous Region Hua Ao company. Applicant after: Karamay state prospecting Petroleum Technology Co Ltd Address before: Guo He village, Lianhua Town, Qinan County, Tianshui, Gansu Applicant before: Guo Baoxiang |
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