CN105085772B - A kind of polystyrene methylmethacrylate and its synthetic method and application - Google Patents
A kind of polystyrene methylmethacrylate and its synthetic method and application Download PDFInfo
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- CN105085772B CN105085772B CN201510423448.9A CN201510423448A CN105085772B CN 105085772 B CN105085772 B CN 105085772B CN 201510423448 A CN201510423448 A CN 201510423448A CN 105085772 B CN105085772 B CN 105085772B
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- methylmethacrylate
- styrene
- water
- azodiisobutyronitrile
- polyvinyl alcohol
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Abstract
The invention provides a kind of polystyrene methylmethacrylate and its synthetic method and application.The polystyrene methylmethacrylate of the present invention is prepared by the method comprised the following steps：Using methylmethacrylate and styrene as reaction monomers, in the presence of polyethylene of dispersing agent alcohol and initiator azodiisobutyronitrile, suspension polymerization is carried out by decentralized medium of water.The polystyrene methylmethacrylate of the present invention has the following advantages that：Test result shows to be completely dissolved in crude oil using the polystyrene methylmethacrylate produced of synthetic method of the present invention, by gas chromatograph-mass spectrometer can Accurate Determining its concentration, dosage is few, meets the needs of horizontal well oil-producing profile monitoring.
Description
Technical field
The present invention relates to oil exploration and development fields, specifically, be related to a kind of polystyrene methylmethacrylate and its
Synthetic method and application.
Background technology
At present during In Oil Field Exploration And Development, prospect pit uses horizontal well more, and multi-layer multi-stage pressure break is stratum transformation
Preferred technique, but during layer position selects, be all to select to be layered by experience without specific aim, thus for pressure break after
Data acquisition and issuance fracturing effect be just particularly important.In the prior art, can be supervised by micro seismic method, potentiometry etc.
Fracture intensity after pressure break is surveyed and analyzed, whether has commercial oil by the row's of returning situation awareness reservoir, but for staged fracturing
Each section of oil-producing situation does not have effective monitoring method afterwards.
Multistage fracturing technique building technology and corollary equipment are ripe, have realized 30 grades of pressure breaks, largest domestic in the world
Pressure break series is more than 15 grades.Because pressure break series is more, long horizontal sections physical property has differences in addition, discharge opeing feelings after every grade of pressure break
Evaluation and next step well site deployment of the condition for fracturing effect have great importance, but for each section after staged fracturing of oil-producing
Situation does not have effective monitoring method.To solve the technical problem, during multistage fracturing, every section is mixed in fracturing propping agents
Enter different types of solid oil-soluble tracer particles, be constantly dissolved in original with the output solid oil-soluble tracer particles of crude oil
In oil, by analyzing the concentration of tracer in production fluid, reach the mesh that every section of oil-producing situation of analysis draws every section of oil-producing liquid section
's.Because current largest domestic pressure break series is more than 15 grades, therefore mutually in requisition for 15 kinds of level above well oil-producing profile monitorings
Use tracer.
Conventional oil field is water solubility with tracer, and the few dosage of species is big, is not suitable for horizontal well multi-layer multi-stage pressure
The monitoring of rear each section of oil-producing situation is split, tracer of the present invention is oil-soluble, and accuracy of detection is high when concentration is low, and dosage is low.
During multistage fracturing, every section is mixed into different types of solid oil-soluble tracer particles in fracturing propping agents, with original
The output solid oil-soluble tracer particles of oil are constantly dissolved in crude oil, by analyzing the concentration of tracer in production fluid, are reached
Analyze the purpose that every section of oil-producing situation draws every section of oil-producing liquid section.
The content of the invention
It is an object of the present invention to provide a kind of synthetic method of polystyrene methylmethacrylate；
The polystyrene methylmethacrylate being prepared another object of the present invention is to provide the synthetic method；
Cutd open it is still another object of the present invention to provide described polystyrene methylmethacrylate preparing horizontal well oil-producing
The application of face monitoring tracer；
A further object of the present invention is that providing the horizontal well oil-producing containing described polystyrene methylmethacrylate cuts open
Face monitoring tracer.
For the above-mentioned purpose, on the one hand, the invention provides a kind of synthetic method of polystyrene methylmethacrylate, institute
Stating method is included using methylmethacrylate and styrene as reaction monomers, in the presence of polyvinyl alcohol and azodiisobutyronitrile, with
Water is that decentralized medium carries out polymerisation.
Polyvinyl alcohol therein is dispersant, and azodiisobutyronitrile is initiator.
Wherein described methylmethacrylate (CH2C(CH3)COOCH3), azodiisobutyronitrile (C8H12N4), styrene (C8H8)
With polyvinyl alcohol ([C2H4O] n) it is this area conventional reagent, any commercially available methylmethacrylate commonly used in the art, azo two are different
Butyronitrile, styrene and polyvinyl alcohol may be used to the present invention, and according to some preferred embodiments of the invention, the poly- second
Enol average degree of polymerization is 2400-2500.
According to some preferred embodiments of the invention, in described synthetic method, to react the whole things added
It is 100% meter to expect gross weight, and adding each weight of material percentage is respectively：Methylmethacrylate is 35-45%, styrene is
2.5-5%, polyvinyl alcohol 0.5-1.5%, azodiisobutyronitrile 0.5-1.5% and water are 50-60%.
According to some of the invention preferred embodiments, the reaction temperature of polymerisation of the present invention can be 60 DEG C~
70℃；Wherein it is preferably 65 DEG C.
According to some preferred embodiments of the invention, the reaction time of the polymerisation can be 8-10h；It is wherein excellent
Elect 8h as.
According to some preferred embodiments of the invention, methods described includes：Polyvinyl alcohol is dissolved into water first, added
Enter the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile, reacted after the completion of addition and obtain the polystyrene
Methylmethacrylate.
According to some preferred embodiments of the invention, methods described includes：First polyvinyl alcohol be dissolved into 60 DEG C~
In 70 DEG C of water, the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile is added.
According to some preferred embodiments of the invention, methods described includes：Polyvinyl alcohol is dissolved into water first, risen
Temperature adds the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile to 60 DEG C~70 DEG C constant temperature 30min.
According to some preferred embodiments of the invention, methods described includes：Polyvinyl alcohol is dissolved into water first, risen
Temperature adds the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile to 65 DEG C of constant temperature 30min.
It is described to be incorporated as being added dropwise according to some preferred embodiments of the invention；
According to some preferred embodiments of the invention, the speed of the dropwise addition is 5-10 drops/min.
According to some preferred embodiments of the invention, methods described also includes：It is different that the polystyrene is obtained in reaction
After M Cr, it is cooled to room temperature and discharges again.
The present invention provides a kind of synthetic method of oil-soluble tracer polystyrene methylmethacrylate, with percentage by weight
Meter, is dissolved into 0.1%~0.2% polyvinyl alcohol in 50%~70% hot water, is warming up to 60 DEG C~70 DEG C constant temperature first
30min, 25%~45% methylmethacrylate, 2.5%~5% styrene and 0.5% are added dropwise with the speed of per minute 5~10 drops
The mixed solution of~1% azodiisobutyronitrile, 8h~10h is reacted after being added dropwise to complete, be cooled to room temperature discharging.
On the other hand, the polystyrene being prepared present invention also offers synthetic method described in any one of the present invention is different
M Cr.
Another further aspect, present invention also offers described polystyrene methylmethacrylate to prepare horizontal well oil-producing section
The application of monitoring tracer.
Another aspect, present invention also offers the horizontal well oil-producing section containing described polystyrene methylmethacrylate
Monitoring tracer.
In summary, the invention provides a kind of polystyrene methylmethacrylate and its synthetic method and application.This hair
Bright polystyrene methylmethacrylate has the following advantages that：
Test result shows can be completely molten using the polystyrene methylmethacrylate that the synthetic method of the present invention is produced
Solution into crude oil, by gas chromatograph-mass spectrometer can Accurate Determining its concentration, dosage is few, meets the need of horizontal well oil-producing profile monitoring
Will.
Embodiment
The implementation process of the present invention and caused beneficial effect are described in detail below by way of specific embodiment, it is intended to which help is read
Reader more fully understand the present invention essence and feature, not as to this case can practical range restriction.
Embodiment 1
0.5g polyvinyl alcohol (average degree of polymerization 2400-2500) is dissolved into 50g hot water, is warming up to 65 DEG C of constant temperature
30min, the mixed solution of 45g methylmethacrylates, 4.5g styrene and 1.5g azodiisobutyronitriles is slowly added dropwise, is added dropwise to complete
After react 8h, be cooled to room temperature discharging.
Embodiment 2：
1g polyvinyl alcohol (average degree of polymerization 2400-2500) is dissolved into 55g hot water, is warming up to 65 DEG C of constant temperature
30min, the mixed solution of 40g methylmethacrylates, 4g styrene and 1g azodiisobutyronitriles is slowly added dropwise, it is anti-after being added dropwise to complete
8h is answered, is cooled to room temperature discharging.
Embodiment 3：
1.5g polyvinyl alcohol (average degree of polymerization 2400-2500) is dissolved into 60g hot water, is warming up to 65 DEG C of constant temperature
30min, the mixed solution of 35g methylmethacrylates, 3.5g styrene and 0.5g azodiisobutyronitriles is slowly added dropwise, is added dropwise to complete
After react 8h, be cooled to room temperature discharging.
Application examples 1
0.1g polystyrene methylmethacrylates prepared by embodiment 1 are dissolved in 100g crude oil, 70 DEG C is warming up to and has treated
1g is taken to dilute 20 times with petroleum ether after fully dissolved is well mixed, with polystyrene methacrylate first in gas chromatograph-mass spectrometer determination sample
Ester content, test result are shown in Table 1.
Polystyrene methylmethacrylate measurement result in the sample of table 1
Claims (17)
1. a kind of horizontal well oil-producing profile monitoring tracer, it is characterised in that the synthetic method of the tracer is included with different
M Cr and styrene are reaction monomers, in the presence of polyvinyl alcohol and azodiisobutyronitrile, are entered by decentralized medium of water
Row polymerisation, counted using reacting the whole material gross weights added as 100%, add each weight of material percentage difference
For：Methylmethacrylate is 35-45%, styrene 2.5-5%, polyvinyl alcohol 0.5-1.5%, azodiisobutyronitrile are
0.5-1.5% and water are 50-60%.
2. tracer according to claim 1, it is characterised in that the reaction temperature of the polymerisation is 60 DEG C~70
℃。
3. tracer according to claim 1, it is characterised in that the reaction time of the polymerisation is 8-10h.
4. tracer according to claim 1, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In water, the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile is added, is reacted after the completion of addition and obtains described show
Track agent.
5. tracer according to claim 4, it is characterised in that described to be incorporated as being added dropwise.
6. tracer according to claim 5, it is characterised in that the speed of dropwise addition is 5-10 drops/min.
7. tracer according to claim 4, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In 60 DEG C~70 DEG C of water, the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile is added.
8. tracer according to claim 4, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In water, 60 DEG C~70 DEG C constant temperature 20-30min are warming up to, add the mixed of methylmethacrylate, styrene and azodiisobutyronitrile
Close solution.
9. the preparation method of the tracer described in claim 1~8 any one, methods described include with methylmethacrylate and
Styrene is reaction monomers, and in the presence of polyvinyl alcohol and azodiisobutyronitrile, polymerisation is carried out by decentralized medium of water.
10. polystyrene methylmethacrylate is preparing the application of horizontal well oil-producing profile monitoring tracer, the polyphenyl second
The synthetic method of alkene methylmethacrylate is included using methylmethacrylate and styrene as reaction monomers, in polyvinyl alcohol and azo
In the presence of bis-isobutyronitrile, polymerisation is carried out by decentralized medium of water, to react the whole material gross weights added as 100%
Meter, adding each weight of material percentage is respectively：Methylmethacrylate is 35-45%, styrene 2.5-5%, polyethylene
Alcohol is 0.5-1.5%, azodiisobutyronitrile 0.5-1.5% and water are 50-60%.
11. application according to claim 10, it is characterised in that the reaction temperature of the polymerisation is 60 DEG C~70
℃。
12. application according to claim 10, it is characterised in that the reaction time of the polymerisation is 8-10h.
13. application according to claim 10, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In water, the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile is added, is reacted after the completion of addition and obtains described show
Track agent.
14. application according to claim 13, it is characterised in that described to be incorporated as being added dropwise.
15. application according to claim 14, it is characterised in that the speed of dropwise addition is 5-10 drops/min.
16. application according to claim 13, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In 60 DEG C~70 DEG C of water, the mixed solution of methylmethacrylate, styrene and azodiisobutyronitrile is added.
17. application according to claim 13, it is characterised in that methods described includes：Polyvinyl alcohol is dissolved into first
In water, 60 DEG C~70 DEG C constant temperature 20-30min are warming up to, add the mixed of methylmethacrylate, styrene and azodiisobutyronitrile
Close solution.
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| CN104018822A (en) * | 2014-05-23 | 2014-09-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Oil well staged fracturing effect monitoring method |
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| US6184268B1 (en) * | 1999-08-30 | 2001-02-06 | Xerox Corporation | Ink jet ink compositions and processes thereof |
| CN100547027C (en) * | 2006-11-18 | 2009-10-07 | 沂源瑞丰高分子材料有限公司 | PVC ultra-large particle diameter high-fluidity acrylic ester impact modifier |
| CN101824116B (en) * | 2010-05-11 | 2012-02-15 | 陕西科技大学 | Cationic core-shell copolymerized styrene-acrylic surface sizing agent and preparation method thereof |
| CN101974194B (en) * | 2010-09-29 | 2012-05-16 | 江苏科技大学 | Epoxy modified styrene-acrylate emulsion and preparation method thereof |
| CN103193924B (en) * | 2013-04-03 | 2016-01-20 | 衡水新光化工有限责任公司 | Phased film forming styrene-acrylic coating emulsion and preparation method |
| CN103739764A (en) * | 2013-12-09 | 2014-04-23 | 何小刚 | Magnetic macroporous adsorption resin microspheres, and preparation method thereof |
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| CN103012642A (en) * | 2011-09-27 | 2013-04-03 | 许瑞君 | Preparation method of resin |
| CN104018822A (en) * | 2014-05-23 | 2014-09-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Oil well staged fracturing effect monitoring method |
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