CN105112035B - Utilize selective water shutoff agent and preparation method thereof made of the dregs of fat or oily sludge - Google Patents
Utilize selective water shutoff agent and preparation method thereof made of the dregs of fat or oily sludge Download PDFInfo
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- CN105112035B CN105112035B CN201510520553.4A CN201510520553A CN105112035B CN 105112035 B CN105112035 B CN 105112035B CN 201510520553 A CN201510520553 A CN 201510520553A CN 105112035 B CN105112035 B CN 105112035B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Abstract
The invention provides one kind using selective water shutoff agent and preparation method thereof made of the dregs of fat or oily sludge, by weight percentage, preparing the raw material of the selective water shutoff agent includes following components：The water of the dregs of fat or oily sludge 20% 40%, pitch 5% 20%, zwitterionic surfactant 0.2% 1%, hyper-dispersant 0.5% 2%, solid phase particles 1% 10% and surplus.Provided by the invention have that preparation technology is simple, raw material sources are wide, cheap, environmentally friendly close friend using selective water shutoff agent made of the dregs of fat or oily sludge, the features such as selective water shutoff agent and good stratum compatibility, and the plugging strength of the selective water shutoff agent is big, selective blocking outlet capacity is strong, to oil reservoir fanout free region, stratum is not polluted, it is wide to adapt to Oil Reservoir Types.
Description
Technical field
The invention belongs to oil-water well profile control and water plugging field, and in particular to one kind selects using made of the dregs of fat or oily sludge
Property water shutoff agent and preparation method thereof.
Background technology
The dregs of fat are product of the oily sludge after advanced treating, and oily sludge refers to the oil tank of oil recovery factory's multi-purpose station, sedimentation
The oil that tank, Water Tank, oil interceptor bed mud, refinery's oil-containing water processing establishment, lighter hydrocarbons processing factory, purifying device for natural gas clear out
Husky, greasy filth, drilling well, operation, conduit wiring piercing and caused ground crude oil and oily sludge.Oil product storage tank is when storing oil product, oil
The weight oily components such as a small amount of mechanical admixture, the grains of sand, soil, heavy metal salt and paraffin and asphalitine in product are deposited on oil tank
Bottom, form tank bottom oil sludge.
Oily sludge is bulky, if not being acted upon directly discharging, not only takes a large amount of arable lands, and to native around
Earth, water body, air will all pollute, and be produced with foul gas, and will all cause dirt to surrounding soil, water body, air
Dye, is produced, sludge contains the heavy metals such as substantial amounts of pathogen, parasite (ovum), copper, zinc, chromium, mercury, salt with foul gas
And the poisonous and harmful substance of the difficult degradation such as Polychlorinated biphenyls, dioxin, radionuclide.
The treatment technology of oily sludge is also varied, and every kind of method has respective advantage and disadvantage and the scope of application.Hot water
Washing method technique easily realizes that investment cost is low, recyclable most of oil product, it is difficult to which processing emulsifies serious oily sludge, can
Secondary pollution can be produced, is primarily adapted for use in ground sludge；Burning method can maximum minimizing, to raw material adaptability
By force, but high energy consumption, equipment investment is big, and process specifications are high, and general heat utilization ratio is not high, it is understood that there may be dust, SO2Deng two
Secondary pollution；It is not high suitable for water content, and the oily sludge that oil content is higher；Thermal desorption method medium is completely inorganization, and hydro carbons can
Recycle, but reaction condition requires higher, and the more complicated water content that is applied to of operation is not high, the high sludge of hydrocarbon content；It is molten
Agent extraction efficiency high, processing is thorough, most of petroleum substance extraction recovery, but extractant is expensive, during exist
Partial loss, processing cost height are applied to tank bottom mud；Microorganism treatment energy consumption is low, and processing cost is low, but long processing period, right
Cycloalkane, aromatic hydrocarbons, heterocyclic treatment effect are poor, difficult to high oily sludge to adapt to, resource can not reuse, it is small suitable for oil content
In 5% oily sludge.Due to oily sludge complicated, all types of contain can be handled without any processing method
Greasy dirt.
The content of the invention
To overcome above mentioned problem, it is an object of the invention to provide one kind to utilize selective blocking made of the dregs of fat or oily sludge
Aqua, the selective water shutoff agent have the characteristics that plugging strength is big, selective blocking outlet capacity is strong.
It is a further object of the present invention to provide a kind of preparation method of above-mentioned selective water shutoff agent.
It is yet another object of the invention to provide application of the above-mentioned selective water shutoff agent in oil-water well profile control and water plugging.
To reach above-mentioned purpose, the invention provides one kind to utilize selective water shutoff agent made of the dregs of fat or oily sludge,
By weight percentage, preparing the raw material of the selective water shutoff agent includes following components：
The dregs of fat or oily sludge 20%-40%, pitch 5%-20%, zwitterionic surfactant 0.2%-1%, oversubscription
Powder 0.5%-2%, solid phase particles 1%-10% and surplus water；
The zwitterionic surfactant is Cocoamidopropyl betaine, lauroylamidopropyl betaine and cocounut oil acyl
One or more combinations in amine hydroxysultaine；
The hyper-dispersant is polyester type ultra-dispersant agent, polyether-type hyper-dispersant, polyacrylate hyper-dispersant and gathered
One or more combinations in olefines hyper-dispersant.
In selective water shutoff agent provided by the invention, hyper-dispersant has the dispersion effect of uniqueness to the system, can be fast
Speed fully soaks solid phase particles surface, particle is uniformly dispersed, stable performance, can prevent the glue in mud containing dirt or pitch
Matter, asphalitine, which reassemble, to be sticky in together, while dispersion is kept moderate operation viscosity, so that the present invention provides
Selective water shutoff agent there is good performance.
It is provided by the invention using selective water shutoff agent made of the dregs of fat or oily sludge, due to the dregs of fat or oily sludge,
Pitch has good compatibility with stratum water, and shale adsorption gel therein and wax can be adsorbed on formation rock, and lead to
Cross " crumb structure " that viscous connection aggregation forms greater particle size；And solid phase particles can be deposited in macropore, become macropore latus rectum
It is small, high permeability zone band is blocked, increases filtrational resistance, forces seepage flow to turn to, expands injection water swept volume, blocks water breakthrough passage,
Further (deposition is mainly shown as two kinds, Yi Zhongshi for raising selective water shutoff agent intensity and plugging effect：Fluid loss is to stratum
Afterwards, solid phase particles settle, and natural subsidence blocks ground to the solid phase particles that another kind is suspended in liquid under gravity
Layer)；And the dregs of fat after emulsifying or oily sludge, pitch form the higher thick gel blocking layer of intensity, and show weak parent
It is water-based, so as to realize the purpose of selective shut-off water exit.
In above-mentioned selective water shutoff agent, it is preferable that the pitch is asphalt or coal tar pitch.Pitch is at normal temperatures
It is sticky liquid, semisolid or the solid of black or dark brown.
In above-mentioned selective water shutoff agent, it is preferable that the polyester type ultra-dispersant agent include hyper-dispersant Silok7007 and
Hyper-dispersant DA-50；The polyether-type hyper-dispersant includes Polyethylene Octylphenol Ether OP-4；The polyacrylate surpasses
Dispersant includes hyper-dispersant CH-7；The TPO hyper-dispersant includes hyper-dispersant 32500.
In above-mentioned selective water shutoff agent, it is preferable that the solid phase particles are in rubber powder, bark powder, rice chaff and sawdust
One or more of combinations.
In above-mentioned selective water shutoff agent, it is preferable that the water is clear water or oilfield sewage.
In above-mentioned selective water shutoff agent, it is preferable that the ratio containing sand of the dregs of fat or oily sludge is 10%-40%, contained
Oil ratio is 20%-40%, silt particle grain diameter is 0.01-1mm.
Invention additionally provides the preparation method of above-mentioned selective water shutoff agent, this method comprises the following steps：
Pitch is heated to 80-90 DEG C；
Zwitterionic surfactant, hyper-dispersant are added in above-mentioned pitch, stirred, obtains first emulsion；
The dregs of fat or oily sludge, water are added in above-mentioned first emulsion, obtain second emulsion；
Solid phase particles are added in above-mentioned second emulsion, stirring a period of time, selective water shutoff agent are made.
In specific preparation process, each step is all with convention stir.
In above-mentioned preparation method, it is preferable that described stirring a period of time is stirring 0.5 hour.
In above-mentioned preparation method, it is preferable that zwitterionic surfactant, hyper-dispersant are being added to the step of pitch
In rapid, the speed of stirring is 300r/min.
Present invention also offers application of the above-mentioned selective water shutoff agent in oil-water well profile control and water plugging.
Provided by the invention have that preparation technology is simple, raw material using selective water shutoff agent made of the dregs of fat or oily sludge
The features such as wide, cheap, the environmentally friendly close friend in source, selective water shutoff agent and good stratum compatibility, and the selective water shutoff agent
Plugging strength it is big, selective blocking outlet capacity is strong, to oil reservoir fanout free region, does not pollute stratum, it is wide to adapt to Oil Reservoir Types.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
Present embodiments provide one kind and utilize selective water shutoff agent made of the dregs of fat, by percentage to the quality, prepare the choosing
The raw material of selecting property water shutoff agent is：
The dregs of fat：20%, the ratios containing sand of the dregs of fat be 10%, oil-containing ratio be 20%, grain diameter be 10-100 μm；
Asphalt：5%；
Cocoamidopropyl betaine：0.2%；
Silok7007 (polyester type ultra-dispersant agent)：0.5%；
Rubber powder：5%；
Surplus is oilfield sewage.
Specifically preparation process is：
(1) asphalt is heated into 80-90 DEG C makes its melting；
(2) Cocoamidopropyl betaine, hyper-dispersant Silok7007 are added in above-mentioned asphalt, stirring is equal
It is even, obtain first emulsion, mixing speed 300r/min；
(3) dregs of fat, oilfield sewage are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) rubber powder is added in above-mentioned second emulsion, continues to stir half an hour, selective water shutoff agent is made.
Embodiment 2
A kind of selective water shutoff agent without hyper-dispersant is present embodiments provided, by percentage to the quality, prepares the choosing
The raw material of selecting property water shutoff agent is：
The dregs of fat：20%, the ratios containing sand of the dregs of fat be 10%, oil-containing ratio be 20%, grain diameter be 10-100 μm；
Asphalt：5%；
Cocoamidopropyl betaine：0.2%；
Rubber powder：5%；
Surplus is oilfield sewage.
Specifically preparation process is：
(1) asphalt is heated into 80-90 DEG C makes its melting；
(2) Cocoamidopropyl betaine is added in above-mentioned asphalt, stirred, obtain first emulsion, stirred
It is 300r/min to mix speed；
(3) dregs of fat, oilfield sewage are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) rubber powder is added in above-mentioned emulsion, continues to stir half an hour, the selective blocking without hyper-dispersant is made
Aqua.
The selective water shutoff agent that hyper-dispersant is free of made from the present embodiment is entered with the selective water shutoff agent in embodiment 1
Row dispersive property test (experimental temperature is 75 DEG C), test result is shown in Table 1.
After table 1 due to hyper-dispersant as can be seen that added, there is good mating reaction with other components, greatly carry
The high dispersive property of water shutoff agent.
Influence of the hyper-dispersant of table 1 to oily sludge selective water shutoff agent dispersive property
Embodiment 3
Present embodiments provide one kind and utilize selective water shutoff agent made of oily sludge, by percentage to the quality, prepare
The raw material of the selective water shutoff agent is：
Oily sludge：30%, the ratio containing sand of the oily sludge be 20%, oil-containing ratio be 40%, grain diameter be 10-100 μ
m；
Coal tar pitch：20%；
Lauroylamidopropyl betaine：1%；
Polyethylene Octylphenol Ether OP-4 (polyether-type hyper-dispersant)：2%；
Rubber powder：10%；
The clear water of surplus.
Specifically preparation process is：
(1) coal tar pitch is heated into 80-90 DEG C makes its melting；
(2) lauroylamidopropyl betaine, hyper-dispersant Polyethylene Octylphenol Ether OP-4 are added to above-mentioned coal tar
In pitch, stir, obtain first emulsion, mixing speed 300r/min；
(3) oily sludge, clear water are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) rubber powder is added in above-mentioned second emulsion, continues to stir half an hour, selective water shutoff agent is made.
Test the present embodiment and viscosity B coefficent situation of the selective water shutoff agent under condition of different temperatures is made, test result is shown in
Table 2.
Viscosity B coefficent of the selective water shutoff agent of table 2 under condition of different temperatures
| Temperature, DEG C | 60 | 70 | 80 | 90 | 100 | 110 |
| Viscosity mPas | 4310 | 4120 | 3970 | 3550 | 1960 | 850 |
From Table 2, it can be seen that when the selective water shutoff agent of the present embodiment offer is below 90 DEG C, selective water shutoff agent glues
Spend larger, can carry out good closure to water-yielding stratum, and more than 90 DEG C after, viscosity decline it is very fast, sealing characteristics also decline compared with
It hurry up.
Embodiment 4
Present embodiments provide one kind and utilize selective water shutoff agent made of the dregs of fat, by percentage to the quality, prepare the choosing
The raw material of selecting property water shutoff agent is：
The dregs of fat：25%, the ratios containing sand of the dregs of fat be 40%, oil-containing ratio be 25%, grain diameter be 10-100 μm；
Coal tar pitch：10%；
Cocamidopropyl propyl amide hydroxy sulfo lycine：8%；
CH-7 (polyacrylate hyper-dispersant)：2%；
Rice chaff：0.5%；
The clear water of surplus.
Specifically preparation process is：
(1) coal tar pitch is heated into 80-90 DEG C makes its melting；
(2) cocamidopropyl propyl amide hydroxy sulfo lycine, hyper-dispersant CH-7 are added in above-mentioned coal tar pitch, stirring is equal
It is even, obtain first emulsion, mixing speed 300r/min；
(3) dregs of fat, clear water are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) rice chaff is added in above-mentioned second emulsion, continues to stir half an hour, selective water shutoff agent is made.
Selective water shutoff agent is made to the present embodiment and carries out two-tube parallel core closure experiment, tests its closure selectivity
Can, the seepage channel in Thief zone rock core simulation oil reservoir therein.
Experimental method：By rock core 1 and the saturation Liaohe Oil Field stratum water (salinity 6000mg/L) of rock core 3, choosing is then injected into
Selecting property water shutoff agent, in 75 DEG C of conditioned response 24h plastics, then (50 DEG C of viscosity are 76.3mPa to inverse injection Liaohe Oilfield Heavy Crude
S), permeability is determined.By rock core 2 and the saturated oils of rock core 4, be then injected into selective water shutoff agent, 75 DEG C of conditioned response 24h into
Glue, then inverse injection stratum water, determines permeability.Test result is shown in Table 3.
The selectivity of the selective water shutoff agent of table 3
From table 3 it is observed that after saturation different medium rock core injection selective water shutoff agent before and after permeability very very much not
Together, wherein after saturation water rock core injection selective water shutoff agent, permeability drastically declines, and the injection selective water plugging of saturated oils rock core
After agent, permeability variation is little, illustrates that selective water shutoff agent has very strong selectivity to stratum fluid swivels.
Embodiment 5
Present embodiments provide one kind and utilize selective water shutoff agent made of oily sludge, by percentage to the quality, prepare
The raw material of the selective water shutoff agent is：
Oily sludge：30%, the ratio containing sand of the oily sludge be 30%, oil-containing ratio be 30%, grain diameter be 10-100 μ
m；
Asphalt：20%；
Cocamidopropyl propyl amide hydroxy sulfo lycine：6%；
32500 (TPO hyper-dispersants)：2%；
Sawdust：1%；
The clear water of surplus.
Specifically preparation process is：
(1) asphalt is heated into 80-90 DEG C makes its melting；
(2) cocamidopropyl propyl amide hydroxy sulfo lycine, hyper-dispersant 32500 are added in above-mentioned asphalt, stirred
Uniformly, first emulsion, mixing speed 300r/min are obtained；
(3) oily sludge, clear water are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) sawdust is added in above-mentioned second emulsion, continues to stir half an hour, selective water shutoff agent is made.
Single tube core plugging is carried out to selective water shutoff agent made from the present embodiment, tests its sealing characteristics, as a result
It is shown in Table 4.
The selective water shutoff agent plugging strength of table 4
As can be seen from Table 4, the plugging strength for the selective water shutoff agent that the present embodiment provides is up to more than 20MPa/m,
The requirement of oil field profile control and water blockoff can be met.
Embodiment 6
Present embodiments provide one kind and utilize selective water shutoff agent made of oily sludge, by percentage to the quality, prepare
The raw material of the selective water shutoff agent is：
Oily sludge：25%, the ratio containing sand of the oily sludge be 24%, oil-containing ratio be 28%, grain diameter be 10-100 μ
m；
Asphalt：10%；
Lauroylamidopropyl betaine：4%；
DA-50 (polyester type ultra-dispersant agent)：3%；
Rubber powder：2%；
The water of surplus.
Specifically preparation process is：
(1) asphalt is heated into 80-90 DEG C makes its melting；
(2) lauroylamidopropyl betaine, hyper-dispersant DA-50 are added in above-mentioned asphalt, stir, obtain
To first emulsion, mixing speed 300r/min；
(3) oily sludge, clear water are added in above-mentioned first emulsion, stirs, obtain second emulsion；
(4) rubber powder is added in above-mentioned second emulsion, continues to stir half an hour, selective water shutoff agent is made.
Selective water shutoff agent is made applied in oil-water well profile control and water plugging in the present embodiment.Specially：The daybreak 1 in Liaohe Oil Field
The well of block field test 4, scene are prepared using agitator tank, and using pump truck injection well bottom, average individual well dosage is in 2000 sides, injection
Within pressure 17MPa, average individual well solves the side of oily sludge 500, and measure effective percentage achieves good economic benefit up to 91%
And social benefit, reduce environmental pollution, realize the rational and efficient use of oily sludge or the dregs of fat.
Claims (9)
1. one kind by weight percentage, prepares the selectivity using selective water shutoff agent made of the dregs of fat or oily sludge
The raw material of water shutoff agent includes following components：
The dregs of fat or oily sludge 20%-40%, pitch 5%-20%, zwitterionic surfactant 0.2%-1%, hyper-dispersant
0.5%-2%, solid phase particles 1%-10% and surplus water；
The zwitterionic surfactant is Cocoamidopropyl betaine, lauroylamidopropyl betaine and coconut oleoyl amine third
One or more combinations in base hydroxy sulfo lycine；
The hyper-dispersant is polyester type ultra-dispersant agent, polyether-type hyper-dispersant, polyacrylate hyper-dispersant and polyolefin
One or more combinations in class hyper-dispersant；
The step of preparing the selective water shutoff agent includes：
Pitch is heated to 80-90 DEG C；
Zwitterionic surfactant, hyper-dispersant are added in above-mentioned pitch, stirred, obtains first emulsion；
The dregs of fat or oily sludge, water are added in above-mentioned first emulsion, obtain second emulsion；
Solid phase particles are added in above-mentioned second emulsion, stirring a period of time, selective water shutoff agent are made；
The polyester type ultra-dispersant agent is hyper-dispersant Silok7007 or hyper-dispersant DA-50；The polyether-type hyper-dispersant is
Polyethylene Octylphenol Ether OP-4；The polyacrylate hyper-dispersant is hyper-dispersant CH-7；The TPO surpasses
Dispersant is hyper-dispersant 32500.
2. selective water shutoff agent according to claim 1, wherein, the pitch is asphalt or coal tar pitch.
3. according to the selective water shutoff agent described in claim 1-2 any one, wherein, the solid phase particles are rubber powder, tree
One or more of combinations in Pi Fen, rice chaff and sawdust.
4. selective water shutoff agent according to claim 1, wherein, the water is clear water or oilfield sewage.
5. selective water shutoff agent according to claim 1, wherein, the ratio containing sand of the dregs of fat or oily sludge is 10%-
40%th, oil-containing ratio be 20%-40%, silt particle grain diameter be 0.01-1mm.
6. the preparation method of the selective water shutoff agent described in claim 1-5 any one, this method comprise the following steps：
Pitch is heated to 80-90 DEG C；
Zwitterionic surfactant, hyper-dispersant are added in above-mentioned pitch, stirred, obtains first emulsion；
The dregs of fat or oily sludge, water are added in above-mentioned first emulsion, obtain second emulsion；
Solid phase particles are added in above-mentioned second emulsion, stirring a period of time, selective water shutoff agent are made.
7. the preparation method of selective water shutoff agent according to claim 6, wherein, described stirring a period of time is stirring
0.5 hour.
8. the preparation method of selective water shutoff agent according to claim 6, wherein, by zwitterionic surfactant,
Hyper-dispersant was added in the step of pitch, and the speed of stirring is 300r/min.
9. being adjusted using selective water shutoff agent made of the dregs of fat or oily sludge in oil-water well described in claim 1-5 any one
Cut open the application in water blockoff.
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| CN106833573B (en) * | 2016-12-28 | 2019-05-07 | 中国石油天然气股份有限公司 | A kind of plugging agent and its preparation method and application |
| CN106800920B (en) * | 2016-12-28 | 2019-06-11 | 中国石油天然气股份有限公司 | A kind of plugging agent and its preparation method and application |
| CN106753299B (en) * | 2016-12-30 | 2019-09-10 | 中国石油天然气股份有限公司 | A kind of thin oil well selective water shutoff agent and the preparation method and application thereof |
| CN106833588B (en) * | 2016-12-30 | 2019-04-12 | 中国石油天然气股份有限公司 | A kind of sulfur-fixating combustion-promoting high temp profile control agent and the preparation method and application thereof |
| CN106967400A (en) * | 2017-03-08 | 2017-07-21 | 中国石油天然气股份有限公司 | A kind of slug formula oily sludge base profile modificator and profile control method and application |
| CN107936935A (en) * | 2017-11-22 | 2018-04-20 | 烟台智本知识产权运营管理有限公司 | A kind of method of coal-fired waste residue recycling |
| CN110846014B (en) * | 2019-12-04 | 2022-04-01 | 中国石油天然气集团有限公司 | Low-damage well killing fluid for low-pressure gas well and preparation method |
| CN114876432B (en) * | 2022-05-26 | 2023-03-31 | 燕山大学 | Fractured oil-gas reservoir hot fluid mixing and injecting in-situ residual oil water plugging process and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948680A (en) * | 2010-09-21 | 2011-01-19 | 大庆油田有限责任公司 | Bitumen particle profile control agent and preparation method thereof |
| CN102786919A (en) * | 2012-07-12 | 2012-11-21 | 中国石油天然气股份有限公司 | Emulsified asphalt profile control agent |
| CN103965848A (en) * | 2014-04-29 | 2014-08-06 | 中国石油大学(华东) | Composite profile control agent and preparation method thereof |
-
2015
- 2015-08-21 CN CN201510520553.4A patent/CN105112035B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948680A (en) * | 2010-09-21 | 2011-01-19 | 大庆油田有限责任公司 | Bitumen particle profile control agent and preparation method thereof |
| CN102786919A (en) * | 2012-07-12 | 2012-11-21 | 中国石油天然气股份有限公司 | Emulsified asphalt profile control agent |
| CN103965848A (en) * | 2014-04-29 | 2014-08-06 | 中国石油大学(华东) | Composite profile control agent and preparation method thereof |
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