CN107090284A - A kind of preparation method of Supramolecular self assembly viscous crude oil displacement agent - Google Patents
A kind of preparation method of Supramolecular self assembly viscous crude oil displacement agent Download PDFInfo
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- CN107090284A CN107090284A CN201710319875.1A CN201710319875A CN107090284A CN 107090284 A CN107090284 A CN 107090284A CN 201710319875 A CN201710319875 A CN 201710319875A CN 107090284 A CN107090284 A CN 107090284A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 19
- 239000010779 crude oil Substances 0.000 title claims abstract description 19
- 238000001338 self-assembly Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 3
- CFWRDBDJAOHXSH-SECBINFHSA-N 2-azaniumylethyl [(2r)-2,3-diacetyloxypropyl] phosphate Chemical compound CC(=O)OC[C@@H](OC(C)=O)COP(O)(=O)OCCN CFWRDBDJAOHXSH-SECBINFHSA-N 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- GDSRMADSINPKSL-HSEONFRVSA-N gamma-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO GDSRMADSINPKSL-HSEONFRVSA-N 0.000 claims abstract description 5
- OKJPEAGHQZHRQV-UHFFFAOYSA-N Triiodomethane Natural products IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 claims abstract description 4
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000003926 acrylamides Chemical class 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 2
- 150000005524 benzylchlorides Chemical class 0.000 claims description 2
- 150000001805 chlorine compounds Chemical class 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical class [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 34
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 229920000858 Cyclodextrin Polymers 0.000 abstract description 2
- 229920006322 acrylamide copolymer Polymers 0.000 abstract description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 abstract description 2
- 229940073608 benzyl chloride Drugs 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 229940080345 gamma-cyclodextrin Drugs 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 abstract 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 239000003027 oil sand Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000006004 Quartz sand Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000009671 shengli Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- OGQYPPBGSLZBEG-UHFFFAOYSA-N dimethyl(dioctadecyl)azanium Chemical compound CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC OGQYPPBGSLZBEG-UHFFFAOYSA-N 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention is first with γ CD (γ cyclodextrin) for raw material; prepare 6 single pair of tosyl γ CD; it is hydroxy activated by 6; then it is made to be reacted with acrylamide; prepare N γ CD acrylamides; again with acrylamide copolymerization, acrylamide N γ CD acrylamide copolymers (I) are prepared；Using cephalin as raw material, its priority is reacted with 2 times of iodomethane and slightly excessive benzyl chloride respectively, N, N dimethyl N benzyls cephalins (II) is generated；I is pressed than 1 with II：1 mixing, prepares molecular self-assembling viscous crude oil displacement agent.The oil displacement agent excellent performance prepared, oil displacement efficiency is high.
Description
Technical field
The invention belongs to oilfield oil extraction additive field, more particularly to one kind prepares viscous crude oil displacement agent by molecular self-assembling principle
Method.
Background technology
In recent years, the most oil fields of China come into the tail period stage, along with being continuously increased for thickened oil recovery amount,
High density, high viscosity, the characteristic of poor fluidity bring extreme difficulties to oil extraction and conveying, and the key of heavy oil development exists
In terms of how reducing viscosity of crude, improve its mobility.Chemical method is more successful the Technology of Heavy Oil Recovery, particularly thick
Oily reducing viscosity by emulsifying technical research has been deep into microscopic techniques field.The technology is applied achieves preferable effect in terms of wellbore lift
Really, but apply in terms of oil reservoir processing, such technology has serious limitation, it is impossible to carry out large-scale promotion.Such as, it is chemical
The universality of thinner is poor, application is small compared with narrow, chemical huffpuff process range, economic benefit is relatively poor.In addition, base
In chemical agent pollution on the environment, it is small to replace that searching active oligomeric thing is just set about by some big oilfield chemistry companies of the U.S.
Molecule crude oil emulsifier and viscosity dropping agent, such as, using the synergistic effect of biology enzyme, reduce concentration of small molecule crude oil emulsifying agent etc..
The present invention, which is that correlation theory and viscous crude based on Supramolecular self assembly are independently scattered, to be actually needed, appropriate design
Master, guest molecule (being amphiphile, amphiphilic molecule), pitch in viscous crude, colloid molecule are assembled by oil-water interfaces by host molecule
Body it is chimeric, then by the self assembly of guest molecule and host molecule, by viscous crude thermoplastic polymer to aqueous phase, reach that raising viscous crude is adopted
The purpose of yield.
The content of the invention
The present invention for raw material, prepares 6- single pair of tosyl-γ-CD, by 6 hydroxyls first with γ-CD (gamma-cyclodextrin)
Base is activated, and then reacts itself and acrylamide, prepares N- γ-CD- acrylamides, then with acrylamide copolymerization, prepare
Acryloyl amine-n-γ-CD- acrylamide copolymers (I)；Using cephalin as raw material, by its priority respectively with 2 times of iodomethane and
Slightly excessive benzyl chloride reaction, generates N, N- Dimethyl-NBenzyls cephalin (II)；I is pressed with II and is mixed than 1: 1, is prepared
Molecular self-assembling viscous crude oil displacement agent.The oil displacement agent excellent performance prepared, oil displacement efficiency is high.
Embodiment
Embodiment 1
(1) take 0.05mol γ-CD and 0.055mol sodium hydroxides to be placed in mortar, instill a little ethanol and distilled water, grind
Mill is uniform, 25 DEG C of alkalization 1h.0.05mol paratoluensulfonyl chlorides are added, continues to grind after 0.5h, is placed in 40 DEG C of baking ovens, react
0.5h.Take out, continue to grind 0.5h, be placed in 40 DEG C of baking ovens, react 0.5h.It is repeated 6 times.Cooling, ethanol is washed 3 times.
Obtain white solid powder.0.05mol acrylamides are dissolved in 100ml distilled water, 10 DEG C are maintained the temperature at, under stirring gradually
Above-mentioned white solid powder is added, until all solids dissolving, adds 0.01g potassium peroxydisulfates, nitrogen 10min is passed through, drives to the greatest extent
Air in reactor, is warming up to 50 DEG C, insulation reaction 3h.Generate colourless viscous liquid.
(2) 0.05mol cephalin and 100ml water are added in the reaction vessel with agitating device, heating stirring point
After dissipating, air in nitrogen flooding reactor to the greatest extent is passed through, about 15 minutes, 80 DEG C is warming up to, is slowly dropped under stirring with dropping funel
0.055mol iodomethane, reacts 3.0h.Then 0.055mol benzyl chlorides are slowly dropped into again, react 4.0h.Generate thick pale yellow
Shape product liquid.
(3) product for generating (1) and (2) is mixed, stirring respectively with after the dilution of 100ml water, and generation light yellow clear glues
Thick liquid.
Embodiment 2
Accurate to weigh the light yellow clear thick liquid prepared in embodiment 1 (3), dispersing and dissolving stirs 1- in clear water
2h, configures the displacement of reservoir oil agent solution that drug concentration is respectively 0.01%, 0.03%, 0.05%, 0.07% and 0.1%.With
Viscosity of the BROOKFILD various strength solutions of DV-III+ type rheometer measurements at 40 DEG C to 80 DEG C.It the results are shown in Table 1.
Viscosity (mPa.s) of the displacement of reservoir oil agent solution various concentrations of table 1 with a temperature of
Embodiment 3
The accurate 100.0g particle diameters that weigh are some for 0.1-0.3mm quartz sand, and viscosity (25 DEG C) is weighed respectively is
Tetra- kinds of each 20.0g of dewatered oil of 700mPa.s, 1500mPa.s, 56500mPa.s, 125860mPa.s, (make after being heated to 80 DEG C
Crude oil can flow) it is thoroughly mixed with quartz sand, four kinds of oil-containing quartz sands are prepared, numbering is respectively 1#~4#, cooling
It is standby to room temperature；The accurate each 50.0g of displacement of reservoir oil agent solution for weighing the various concentrations configured in embodiment 2, pours into above-mentioned four respectively
In kind of oil-sand, then will container (precise) seal after be placed in 60 DEG C of insulating boxs and be incubated 24h.The liquid in container is poured out,
Oil-sand is collected, is dried in 105 DEG C of drying boxes and removes moisture, be cooled to room temperature, weighed, washing oil rate is calculated by formula (1).According to above-mentioned same
Quadrat method determines the washing oil rate of displacement of reservoir oil agent solution at a temperature of 40 DEG C and 80 DEG C.2 are shown in Table to table 4.From can be seen that in washing oil effect
On, the medicament oil-sand small to viscosity of crude is better than the oil-sand big to viscosity of crude, and with the rise of temperature, washing oil rate increases
Greatly；At three temperatures, for the small 1# oil-sands of viscosity of crude, 0.01% drug concentration washing oil rate has been above 25%, most
Reach 82.5% greatly.For the big 4# oil-sands of viscosity of crude, 0.01% drug concentration washing oil rate has been above 10%, maximum
Reach 65.3%.As a result show, either low viscosity crude oil or high viscosity oil, by adjusting the medicine prepared in embodiment 1
The concentration of agent, the crude oil that can effectively clean on oil-sand.
Washing oil rate (the %)=formulas (1) of (oil-sand gross weight -100.0- blank amount after processing) ÷ 20.0 × 100
Wherein, the oil-sand gross weight -100.0 after blank amount (g)=clear water processing
The washing oil rate (%) of various concentrations displacement of reservoir oil agent solution at a temperature of 2 40 DEG C of table
The washing oil rate (%) of various concentrations displacement of reservoir oil agent solution at a temperature of 3 60 DEG C of table
The washing oil rate (%) of various concentrations displacement of reservoir oil agent solution at a temperature of 4 80 DEG C of table
Embodiment 4
The block oil well crude oil of Shengli Oil Field Jade Emperor mausoleum summer 8 is selected, artificial core is prepared as follows and displacement reality is carried out
Test：Accurately weigh 1800g quartz sand (particle diameters：0.3-0.6mm) (the block oil well of Shengli Oil Field Jade Emperor mausoleum summer 8 takes off with 200g crude oil
5) water crude oil, be shown in Table in 60 DEG C of drying box inside holding 24h, be then thoroughly mixed crude oil and quartz sand uniformly, standby；Will
Above-mentioned 2000g oil-sands are from basket (diameter × length：2.5cm × 10cm) upper end loading, rim lucite in side when inserting
Rod is compacted.Then simulation core is sealed into fixation, be put into insulating box, 60 DEG C of incubated overnights.
Above-mentioned simulation core is intervened into driving device, with 60 DEG C of hot-water displacements (displacement speed first in 60 DEG C of waters bath with thermostatic control
Degree：3ml/min), when no crude oil flows out, the crude oil displaced is collected, is weighed after dehydration；Then use instead 0.01% the displacement of reservoir oil
Agent aqueous solution 15g presses same displacement velocity displacement, and collects the crude oil displaced, and is weighed after dehydration.This drive of calculating 0.01%
Finish aqueous solution 15g recovery ratio increase rates after 60 DEG C of hot water floodings.It the results are shown in Table 6.
The block oil well crude oil of Shengli Oil Field Jade Emperor mausoleum summer 8 at a temperature of 5 60 DEG C of table
| Oil well number | Summer 8-1 | Summer 8-11 | Summer 19-1 | Summer 19-8 |
| Viscosity of crude, mPa.s | 20750 | 19500 | 21380 | 21000 |
0.01% oil displacement agent displacement recovery efficiency raising value at a temperature of 6 60 DEG C of table
Claims (1)
1. a kind of preparation method by Supramolecular self assembly viscous crude oil displacement agent.Comprise the following steps：
(1) take 0.05mol γ-CD and 0.055mol sodium hydroxides to be placed in mortar, instill a little ethanol and distilled water, grinding is equal
It is even, 25 DEG C of alkalization 1h.0.05mol paratoluensulfonyl chlorides are added, continues to grind after 0.5h, is placed in 40 DEG C of baking ovens, react 0.5h.
Take out, continue to grind 0.5h, be placed in 40 DEG C of baking ovens, react 0.5h.It is repeated 6 times.Cooling, ethanol is washed 3 times.Obtain white
Solid powder.0.05mol acrylamides are dissolved in 100ml distilled water, maintains the temperature at and is gradually added under 10 DEG C, stirring
White solid powder is stated, until all solids dissolving, adds 0.01g potassium peroxydisulfates, nitrogen 10min is passed through, reactor to the greatest extent is driven
Interior air, is warming up to 50 DEG C, insulation reaction 3h.Generate colourless viscous liquid.
(2) 0.05mol cephalin and 100ml water are added in the reaction vessel with agitating device, after heating stirring is scattered,
Air in nitrogen flooding reactor to the greatest extent is passed through, about 15 minutes, 80 DEG C is warming up to, is slowly dropped under stirring with dropping funel
0.055mol iodomethane, reacts 3.0h.Then 0.055mol benzyl chlorides are slowly dropped into again, react 4.0h.Generate thick pale yellow
Shape product liquid.
(3) product for generating (1) and (2) is mixed respectively with after the dilution of 100ml water, and stirring generates light yellow clear viscous fluid
Body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710319875.1A CN107090284B (en) | 2017-05-09 | 2017-05-09 | A kind of preparation method of Supramolecular self assembly viscous crude oil displacement agent |
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| CN201710319875.1A CN107090284B (en) | 2017-05-09 | 2017-05-09 | A kind of preparation method of Supramolecular self assembly viscous crude oil displacement agent |
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| CN107090284A true CN107090284A (en) | 2017-08-25 |
| CN107090284B CN107090284B (en) | 2019-10-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624314A (en) * | 2018-03-31 | 2018-10-09 | 青岛大学 | A method of preparing viscous crude pour-point depressant by raw material of cephalin |
| CN110410047A (en) * | 2019-06-17 | 2019-11-05 | 中国石油天然气股份有限公司 | A kind of flooding method and its gas energy release oil displacement agent for high gassiness oil field |
| CN116892387A (en) * | 2023-07-10 | 2023-10-17 | 河南省科学院同位素研究所有限责任公司 | Preparation method of radioactive isotope tracer for oilfield gas flooding monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140493A (en) * | 2014-07-24 | 2014-11-12 | 西南石油大学 | Water-soluble ionic type hydrophobic associated polymer oil-displacing agent and preparation method and application thereof |
| CN104164226A (en) * | 2013-05-20 | 2014-11-26 | 北京德美高科科技有限责任公司 | High temperature oil washing agent |
| CN104861950A (en) * | 2015-05-19 | 2015-08-26 | 重庆科技学院 | Supramolecular linear polyacrylamide oil displacement agent and preparation method thereof |
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2017
- 2017-05-09 CN CN201710319875.1A patent/CN107090284B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164226A (en) * | 2013-05-20 | 2014-11-26 | 北京德美高科科技有限责任公司 | High temperature oil washing agent |
| CN104140493A (en) * | 2014-07-24 | 2014-11-12 | 西南石油大学 | Water-soluble ionic type hydrophobic associated polymer oil-displacing agent and preparation method and application thereof |
| CN104861950A (en) * | 2015-05-19 | 2015-08-26 | 重庆科技学院 | Supramolecular linear polyacrylamide oil displacement agent and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624314A (en) * | 2018-03-31 | 2018-10-09 | 青岛大学 | A method of preparing viscous crude pour-point depressant by raw material of cephalin |
| CN108624314B (en) * | 2018-03-31 | 2021-10-08 | 青岛大学 | Method for preparing thickened oil pour point depressant by taking cephalin as raw material |
| CN110410047A (en) * | 2019-06-17 | 2019-11-05 | 中国石油天然气股份有限公司 | A kind of flooding method and its gas energy release oil displacement agent for high gassiness oil field |
| CN110410047B (en) * | 2019-06-17 | 2021-09-28 | 中国石油天然气股份有限公司 | Oil displacement method for high-gas-content oil field and gas energy release oil displacement agent thereof |
| CN116892387A (en) * | 2023-07-10 | 2023-10-17 | 河南省科学院同位素研究所有限责任公司 | Preparation method of radioactive isotope tracer for oilfield gas flooding monitoring |
| CN116892387B (en) * | 2023-07-10 | 2024-05-24 | 河南省科学院同位素研究所有限责任公司 | Preparation method of radioactive isotope tracer for oilfield gas flooding monitoring |
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