CN105085782A - Polystyrene methyl acrylate and synthetic method therefor and application thereof - Google Patents
Polystyrene methyl acrylate and synthetic method therefor and application thereof Download PDFInfo
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- CN105085782A CN105085782A CN201510423062.8A CN201510423062A CN105085782A CN 105085782 A CN105085782 A CN 105085782A CN 201510423062 A CN201510423062 A CN 201510423062A CN 105085782 A CN105085782 A CN 105085782A
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- methyl acrylate
- synthetic method
- acrylic acid
- acid methyl
- vinylbenzene
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Abstract
The invention provides polystyrene methyl acrylate and a synthetic method therefor and application thereof. The polystyrene methyl acrylate is prepared by virtue of the method comprising the following step: by taking methyl acrylate and polystyrene as reaction monomers, carrying out suspended polymerization reaction by taking water as a dispersing medium in the presence of a dispersant polyethylene glycol and an initiator azodiisobutyronitrile. The polystyrene methyl acrylate provided by the invention has the advantages that the test result shows that the polystyrene methyl acrylate prepared by the synthetic method can be fully dissolved in crude oil; the concentration of the polystyrene methyl acrylate can be accurately measured by virtue of a gas chromatograph-mass spectrometer; the dosage is small; and the demand on monitoring an oil producing profile of a horizontal well is satisfied.
Description
Technical field
The present invention relates to oil exploration and development fields, specifically, relate to a kind of polystyrene acrylic acid methyl esters and synthetic method thereof and application.
Background technology
At present in In Oil Field Exploration And Development process, prospect pit many employings horizontal well, and multi-layer multi-stage pressure break is the first-selected technique of stratum transformation, but in the process that layer position is selected, there is no specific aim, be all by experience to select layering, therefore post-fracturing Data acquisition and issuance fracturing effect just seemed particularly important.In prior art, by the monitoring such as micro seismic method, potentiometry and fracture intensity after pressure break can be analyzed, whether have commercial oil by the row's of returning situation awareness reservoir, but effective monitoring method is not had for the produce oil situation of each section after staged fracturing.
Multistage fracturing technique building technology and support equipment are ripe, have realized 30 grades of pressure breaks in the world, and largest domestic pressure break progression is more than 15 grades.Because pressure break progression is more, long horizontal sections physical property there are differences in addition, and after every grade of pressure break, discharge opeing situation has great importance for the evaluation of fracturing effect and next step well site deployment, but does not have effective monitoring method for the produce oil situation of each section after staged fracturing.For solving this technical problem, in multistage fracturing process, every section is mixed into different types of solid oil dissolubility tracer particles in fracturing propping agents, along with the output solid oil dissolubility tracer particles of crude oil is constantly dissolved in crude oil, by analyzing the concentration of tracer agent in production fluid, reaching and analyzing the object that every section of produce oil situation draws every section of produce oil liquid section.Because current largest domestic pressure break progression is more than 15 grades, therefore in requisition for more than 15 kinds horizontal well produce oil profile monitoring tracer agents.
Oil field tracer agent was water-soluble in the past, and the few consumption of kind is large, and be not suitable for the monitoring of each section of produce oil situation after horizontal well multi-layer multi-stage pressure break, tracer agent of the present invention is oil soluble, and when concentration is low, accuracy of detection is high, and consumption is low.In multistage fracturing process, every section is mixed into different types of solid oil dissolubility tracer particles in fracturing propping agents, along with the output solid oil dissolubility tracer particles of crude oil is constantly dissolved in crude oil, by analyzing the concentration of tracer agent in production fluid, reaching and analyzing the object that every section of produce oil situation draws every section of produce oil liquid section.
Summary of the invention
One object of the present invention is the synthetic method providing a kind of polystyrene acrylic acid methyl esters;
Another object of the present invention is to the polystyrene acrylic acid methyl esters providing described synthetic method to prepare;
Another object of the present invention is to provide described polystyrene acrylic acid methyl esters in the application preparing horizontal well produce oil profile monitoring tracer agent.
Another object of the present invention is to provide the tracer agent of the horizontal well produce oil profile monitoring containing described polystyrene acrylic acid methyl esters.
For reaching above-mentioned purpose, on the one hand, the invention provides a kind of synthetic method of polystyrene acrylic acid methyl esters, described method comprises with methyl acrylate and vinylbenzene for reaction monomers, under polyoxyethylene glycol and Diisopropyl azodicarboxylate exist, be that dispersion medium carries out polyreaction with water.
Polyoxyethylene glycol is wherein dispersion agent, and Diisopropyl azodicarboxylate is initiator.
Wherein said methyl acrylate (CH
2=CHCOOCH
3), Diisopropyl azodicarboxylate (C
8h
12n
4), vinylbenzene (C
8h
8) and polyoxyethylene glycol (HO (CH
2cH
2o) nH) be this area conventional reagent, methyl acrylate, Diisopropyl azodicarboxylate, vinylbenzene and polyoxyethylene glycol that any commercially available this area is commonly used may be used to the present invention.
According to the present invention some preferred embodiment, described polyoxyethylene glycol is the polyoxyethylene glycol of viscosity-average molecular weight 3600-4400.
According to the present invention some preferred embodiment, in described synthetic method, the whole material gross weights added in reaction are for 100%, and institute adds each weight of material per-cent and is respectively: methyl acrylate is 25-45%, vinylbenzene is 2.5-5%, polyoxyethylene glycol is 0.1-0.2%, Diisopropyl azodicarboxylate is 0.2-0.9% and water is 50-70%.
According to the present invention some preferred embodiment, the temperature of reaction of polyreaction of the present invention can be 60 DEG C ~ 70 DEG C; Wherein be preferably 65 DEG C.
According to the present invention some preferred embodiment, the reaction times of described polyreaction can be 8-10h; Wherein be preferably 8h.
According to the present invention some preferred embodiment, described method comprises: first polyoxyethylene glycol is dissolved in water, adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate, is obtained by reacting described polystyrene acrylic acid methyl esters after having added.
According to the present invention some preferred embodiment, described method comprises: first polyoxyethylene glycol is dissolved in the water of 60 DEG C ~ 70 DEG C, then adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate.
According to the present invention some preferred embodiment, described method comprises: first polyoxyethylene glycol is dissolved in water, is warmed up to 60 DEG C ~ 70 DEG C constant temperature 30min, then adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate.
According to the present invention some preferred embodiment, described method comprises: first polyoxyethylene glycol is dissolved in water, is warmed up to 65 DEG C of constant temperature 30min.
According to the present invention some preferred embodiment, described in be incorporated as dropping;
According to the present invention some preferred embodiment, the speed of described dropping is that 5-10 drips/min.
According to the present invention some preferred embodiment, described method also comprises: after being obtained by reacting described polystyrene acrylic acid methyl esters, is cooled to room temperature discharging again.
The invention provides a kind of synthetic method of oil soluble tracer agent polystyrene acrylic acid methyl esters, by weight percentage, first the polyoxyethylene glycol of 0.1% ~ 0.2% is dissolved in the hot water of 50% ~ 70%, be warmed up to 60 DEG C ~ 70 DEG C constant temperature 30min, the mixing solutions of 25% ~ 45% methyl acrylate, 2.5% ~ 5% vinylbenzene and 0.5% ~ 1% Diisopropyl azodicarboxylate is dripped with the speed of per minute 5 ~ 10, be added dropwise to complete rear reaction 8h ~ 10h, be cooled to room temperature discharging.
On the other hand, present invention also offers the polystyrene acrylic acid methyl esters that synthetic method described in any one of the present invention prepares.
Again on the one hand, present invention also offers described polystyrene acrylic acid methyl esters in the application preparing horizontal well produce oil profile monitoring tracer agent.
Another aspect, present invention also offers the horizontal well produce oil profile monitoring tracer agent containing described polystyrene acrylic acid methyl esters.
In sum, the invention provides a kind of polystyrene acrylic acid methyl esters and synthetic method thereof and application.Polystyrene acrylic acid methyl esters tool of the present invention has the following advantages:
Test result shows that the polystyrene acrylic acid methyl esters adopting synthetic method of the present invention to produce can be dissolved in crude oil completely, can its concentration of Accurate Determining by gas chromatograph-mass spectrometer, and consumption is few, meets the needs of horizontal well produce oil profile monitoring.
Embodiment
Describe the beneficial effect of implementation process of the present invention and generation below by way of specific embodiment in detail, be intended to help reader to understand essence of the present invention and feature better, not as can the restriction of practical range to this case.
Embodiment 1
0.1g polyoxyethylene glycol (PEG4000 molecular-weight average 3600 ~ 4400) is dissolved in the hot water of 50g, be warmed up to 65 DEG C of constant temperature 30min, the mixing solutions of slow dropping 45g methyl acrylate, 4.5g vinylbenzene and 0.9g Diisopropyl azodicarboxylate, be added dropwise to complete rear reaction 8h, be cooled to room temperature discharging.
Embodiment 2:
0.15g polyoxyethylene glycol (PEG4000 molecular-weight average 3600 ~ 4400) is dissolved in the hot water of 60g, be warmed up to 65 DEG C of constant temperature 30min, the mixing solutions of slow dropping 35g methyl acrylate, 4g vinylbenzene and 0.7g Diisopropyl azodicarboxylate, be added dropwise to complete rear reaction 8h, be cooled to room temperature discharging.
Embodiment 3:
0.2g polyoxyethylene glycol (PEG4000 molecular-weight average 3600 ~ 4400) is dissolved in the hot water of 70g, be warmed up to 65 DEG C of constant temperature 30min, the mixing solutions of slow dropping 25g methyl acrylate, 3g vinylbenzene and 0.5g Diisopropyl azodicarboxylate, be added dropwise to complete rear reaction 8h, be cooled to room temperature discharging.
Application examples 1
0.1g polystyrene acrylic acid methyl esters embodiment 1 prepared is dissolved in 100g crude oil, be warmed up to 70 DEG C after dissolving mix completely, to get 1g sherwood oil dilute 20 times, with polystyrene acrylic acid methyl ester content in gas chromatograph-mass spectrometer working sample, test result is in table 1.
Polystyrene acrylic acid methyl esters measurement result in table 1 sample
Claims (10)
1. a synthetic method for polystyrene acrylic acid methyl esters, is characterized in that, described method comprises with methyl acrylate and vinylbenzene for reaction monomers, under polyoxyethylene glycol and Diisopropyl azodicarboxylate exist, is that dispersion medium carries out polyreaction with water.
2. synthetic method according to claim 1, it is characterized in that, the whole material gross weights added in reaction are for 100%, and institute adds each weight of material per-cent and is respectively: methyl acrylate is 25-45%, vinylbenzene is 2.5-5%, polyoxyethylene glycol is 0.1-0.2%, Diisopropyl azodicarboxylate is 0.2-0.9% and water is 50-70%.
3. synthetic method according to claim 1 and 2, is characterized in that, the temperature of reaction of described polyreaction is 60 DEG C ~ 70 DEG C.
4. synthetic method according to claim 1 and 2, is characterized in that, the reaction times of described polyreaction is 8-10h.
5. synthetic method according to claim 1 and 2, it is characterized in that, described method comprises: first polyoxyethylene glycol is dissolved in water, adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate, is obtained by reacting described polystyrene acrylic acid methyl esters after having added; Dropping is incorporated as preferably; More preferably the speed dripped is that 5-10 drips/min.
6. synthetic method according to claim 5, is characterized in that, described method comprises: first polyoxyethylene glycol is dissolved in the water of 60 DEG C ~ 70 DEG C, then adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate.
7. synthetic method according to claim 5, is characterized in that, described method comprises: first polyoxyethylene glycol is dissolved in water, is warmed up to 60 DEG C ~ 70 DEG C constant temperature 20-30min, then adds the mixing solutions of methyl acrylate, vinylbenzene and Diisopropyl azodicarboxylate.
8. the polystyrene acrylic acid methyl esters for preparing of synthetic method described in claim 1 ~ 7 any one.
9. polystyrene acrylic acid methyl esters according to claim 8 is preparing the application of horizontal well produce oil profile monitoring tracer agent.
10. the horizontal well produce oil profile monitoring tracer agent containing polystyrene acrylic acid methyl esters according to claim 8.
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| CN201510423062.8A CN105085782B (en) | 2015-07-17 | 2015-07-17 | A kind of polystyrene acrylic acid methyl esters and its synthetic method and application |
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| CN201510423062.8A CN105085782B (en) | 2015-07-17 | 2015-07-17 | A kind of polystyrene acrylic acid methyl esters and its synthetic method and application |
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| CN101912738A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Preparation method of composite separating film with uniform surface apertures |
| CN101967212A (en) * | 2010-09-09 | 2011-02-09 | 上海闰铭精密技术有限公司 | Acrylate polymer high oil absorption resin and preparation method and application thereof |
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2015
- 2015-07-17 CN CN201510423062.8A patent/CN105085782B/en active Active
Patent Citations (4)
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| US6498202B1 (en) * | 1999-12-14 | 2002-12-24 | Lexmark International, Inc | Ink jet ink compositions including latex binder and methods of ink jet printing |
| CN101314624A (en) * | 2008-05-21 | 2008-12-03 | 安徽省电力公司合肥供电公司 | High oil suction resin and uses thereof |
| CN101912738A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Preparation method of composite separating film with uniform surface apertures |
| CN101967212A (en) * | 2010-09-09 | 2011-02-09 | 上海闰铭精密技术有限公司 | Acrylate polymer high oil absorption resin and preparation method and application thereof |
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