CN109266321A - Wettability modification oil film removal relative permeability modifier and preparation method thereof - Google Patents
Wettability modification oil film removal relative permeability modifier and preparation method thereof Download PDFInfo
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- CN109266321A CN109266321A CN201811182249.3A CN201811182249A CN109266321A CN 109266321 A CN109266321 A CN 109266321A CN 201811182249 A CN201811182249 A CN 201811182249A CN 109266321 A CN109266321 A CN 109266321A
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- 239000003607 modifier Substances 0.000 title claims abstract description 47
- 230000035699 permeability Effects 0.000 title claims abstract description 47
- 238000012986 modification Methods 0.000 title claims abstract description 15
- 230000004048 modification Effects 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 16
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 12
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 12
- -1 polyoxyethylene Polymers 0.000 claims description 10
- 239000008398 formation water Substances 0.000 claims description 8
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005639 Lauric acid Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000002585 base Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims 2
- 239000003921 oil Substances 0.000 description 42
- 239000010779 crude oil Substances 0.000 description 22
- 239000010453 quartz Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 238000005259 measurement Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000003027 oil sand Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 239000009671 shengli Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QXLOZSBHUBPLFQ-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCC)[Na] Chemical compound C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCC)[Na] QXLOZSBHUBPLFQ-UHFFFAOYSA-N 0.000 description 2
- ICHPPKLNMXXNIW-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCCC)[Na] Chemical compound C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCCC)[Na] ICHPPKLNMXXNIW-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting 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
- C09K8/584—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 surfactants
-
- 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
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention relates to a kind of wettability modification oil film removal relative permeability modifiers, it is characterized in that, by weight percentage, it is made of following components: the anionic surfactant of 0.01-10wt%, the nonionic surfactant of 0.001-2wt%, surplus is water, and wherein the sum of each component weight percent is 100%.The invention further relates to the preparation methods of the relative permeability modifier.
Description
Technical field
The present invention relates to a kind of wettability modification oil film removal relative permeability modifiers and preparation method thereof.
Background technique
Part resin and asphalt in crude oil with rock porous media during contacting, by very long geology year
In generation, is adsorbed on rock surface, forms absorption phase.Most of oil reservoir is after carrying out secondary development, on hole wall still
There is abundant residues oil to be detained in the earth formation in the form of oil film.The study found that oil film is thinner under the conditions of same oil property,
It is more difficult to by displacement.
Relative to single surfactant, compound system often has more excellent performance.Due to depositing for synergistic effect
There is lower critical micelle concentration, better surface and interface activity, foam property and solubilising etc. in, compound system.On the other hand,
Compound system can reduce the dosage of surfactant, and then reduce production cost, while reduce the pollution to environment.Anion
Surfactant and nonionic surfactant compounding, can be improved the solubility of anionic surfactant, while improving non-
The cloud point of ionic surface active agent.It is compounded in tertiary oil recovery technology using Anionic-nonionic, it is living to can solve anionic surface
Property agent salt tolerance is poor, the problem of nonionic surfactant temperature tolerance difference, in tertiary oil recovery field especially high temperature and high salt oil deposit
Exploitation in have broad application prospects.
Due to surfactant molecule oriented attachment, relative permeability modifier is penetrated between crude oil and rock, changes reservoir
The property on surface and interacting state with crude oil make oil film be easy to peel off to weaken adhesion strength of the crude oil on rock.
This relative permeability modifier can reduce the interfacial tension of grease simultaneously, keep crude oil easily-deformable, so that carrying efficiency is improved, it is final to improve
Oil recovery factor.
Therefore, still need to develop new surfactant compound system as relative permeability modifier, to be used for high temperature and high salt oil deposit
Exploitation.
Summary of the invention
The present invention provides a kind of wettability modification oil film removal relative permeability modifiers, which is characterized in that by weight percentage
Meter, is made of following components:
The anionic surfactant of 0.01-10wt%,
The nonionic surfactant of 0.001-2wt%,
Surplus is water,
Wherein the sum of each component weight percent is 100%.
The invention further relates to the preparation methods of the relative permeability modifier for oil film removal, specifically includes the following steps:
1) anionic surfactant and nonionic surfactant are crushed respectively；
2) according to the ratio in claim 1 that anionic surface agent living and nonionic surfactant is equal
Even mixing；
3) water is added, is sufficiently stirred or vibrates to get required product.
The present invention has the advantage that
1) relative permeability modifier ingredient of the invention is simple, and dissolubility is good；
2) relative permeability modifier of the invention has preferable salt resistant character, can be used for the oil reservoir compared with high salinity；
3) relative permeability modifier of the invention can reduce oil water interfacial tension, be conducive to the emulsion shape under reservoir condition
At；
4) relative permeability modifier of the invention can increase crude oil in the contact angle of rock surface, make oil by the change of wetability
Film stripping, the ability with stronger removing oil film.
Detailed description of the invention
Fig. 1 be the contact angle of Yuan You Xiang Shentiaojieji quartz system that is measured in embodiment 1 with action time variation by
Cumulative big view is increased to 163 ° from 0 °, shows stronger oil film removal ability
Specific embodiment
The present invention relates to a kind of wettability modification oil film removal relative permeability modifiers, which is characterized in that presses
Weight percent meter, is made of following components:
The anionic surfactant of 0.01-10wt%,
The nonionic surfactant of 0.001-2wt%,
Surplus is water,
Wherein the sum of each component weight percent is 100%.
In one embodiment of the invention, by weight percentage, relative permeability modifier includes 0.05-5wt%, more excellent
0.1-1wt% is selected, even more preferably from the anionic surfactant of 0.2-0.6wt%.
In one embodiment of the invention, by weight percentage, relative permeability modifier includes 0.01-1wt%, more excellent
Select 0.05-0.5wt%, the nonionic surfactant of more preferable 0.05-0.2wt%,
In one embodiment of the invention, the anionic surfactant has molecular formula: R-Ar-X-M+, wherein
R is C8-C26, preferably C8-C20, more preferable C8-C15Linear or branched alkyl group, Ar is phenyl or naphthyl, X SO3 -Or CO2 -, M
Selected from alkali or alkaline earth metal, preferably Na+、K+、Ca2+Or Mg2+。
In one embodiment of the invention, the nonionic surfactant is selected from: octyl phenol polyoxyethylene ether, nonyl
Base phenol polyethenoxy ether, polyoxyethylene poly-oxygen propylene aether, dodecyl polyoxyethylene ether, in lauric acid polyoxyethylene ester at least
It is a kind of.
In one embodiment of the invention, the water is water flooding or simulated formation water.The water flooding, which refers to, adopts
The underground water of output when oily, the simulated formation water are according to analysis stratum water ion content, the similar salinity of indoor preparation
With the water of ion concentration.
The invention further relates to a kind of preparation methods of wettability modification oil film removal relative permeability modifier, specifically include following step
It is rapid:
1) anionic surfactant and nonionic surfactant are crushed respectively；
2) anionic surface agent living and nonionic surfactant are uniformly mixed according to the ratio in claim 1；
3) water is added, is sufficiently stirred or vibrates to get required product.
In the preparation process in accordance with the present invention, wherein step 3) carries out at normal temperature.
Gu liquid-liquid-three-phase contact angle experiments method in the present invention:
Take 2 μ L crude oil drop on quartz plate, aging 1 day in baking oven.Quartz plate after aging is upside down in adding for measurement ware
It holds on frame, the relative permeability modifier is added, is immersed in quartz plate in relative permeability modifier solution, measurement liquid-liquid-solid three is in contact
Angle, until contact angle numerical value change is little, for example, error range is at ± 1-3 °.Aging and test temperature are 75 degrees Celsius.
The wherein cleaning of quartz plate: a small amount of washing powder is dipped with banister brush first and is thoroughly scrubbed, is used after scrubbing clean
A large amount of water rinse.It is successively cleaned, is dried with a water, acetone, a water.Then chromic acid lotion immersion 5 hours or more, Zhi Houyong
Distilled water flushing, then ultrasound 20 minutes, it is dried for standby under 105 degrees celsius.
The contact angle of the Yuan You Xiang Shentiaojieji quartz system measured in the present embodiment gradually increases with action time variation
Greatly, 163 ° are increased to from 0 °, show stronger oil film removal ability (as shown in Figure 1).
In the present invention, displacement efficiency measuring method is as follows:
1) A grams of clean reservoir sand and target block crude oil are weighed to mix in 4:1 ratio (mass ratio), is put into baking oven
Constant temperature aging 7 days under reservoir temperature, daily stirring 1 time, are uniformly mixed oil-sand.
2) weighing aging, good oil-sand 2.000g is put in washing oil bottle；Prepared phase is added in the washing oil bottle equipped with oil-sand
It seeps and adjusts agent solution 100g, stand 48h under reservoir temperature after being sufficiently mixed；Read the body that oil is washed out at washing oil bottle high scale
Product.
3) quality m is calculated using density, while carries out washing oil using oil-sand of the petroleum ether to homogenous quantities, measure oil-sand table
Crude quality M is adhered in face.Crude oil eluting rate is calculated as follows:
In formula: σ-crude oil eluting rate, %；
M- crude oil eluted mass, g；
Crude quality, g are adhered in M- oil-sand surface.
Embodiment 1
The preparation of wettability modification oil film removal relative permeability modifier
1) it by linear alkyl benzene sulphonate and octyl phenol polyoxyethylene ether, grinds respectively；
2) described two substances are weighed respectively, are added in clean container after evenly mixing；
3) finally simulated formation water is added in said vesse, is sufficiently stirred at room temperature, obtains linear dodecylbenzene sulfonic acid
The concentration of sodium is 0.3%, the relative permeability modifier that the concentration of octyl phenol polyoxyethylene ether is 0.1%.
As shown in Figure 1, the contact angle of the Yuan You Xiang Shentiaojieji quartz system measured in the present embodiment is with action time
Variation is gradually increased, and is increased to 163 ° from 0 °, shows stronger oil film removal ability.
The crude oil eluting rate of the water flooding measured in the present embodiment is 8%, uses the crude oil of oil film removal relative permeability modifier
Eluting rate is 42%；Interfacial tension can be reduced to 10 between the relative permeability modifier and Shengli crude-1The mN/m order of magnitude.
Embodiment 2
The preparation of wettability modification oil film removal relative permeability modifier
1) it by octyl sodium naphthalene sulfonate and octyl phenol polyoxyethylene ether, grinds respectively；
2) described two substances are weighed respectively, are added in clean container after evenly mixing；
3) finally simulated formation water is added in said vesse, is sufficiently stirred at room temperature, obtains the concentration of octyl sodium naphthalene sulfonate
It is 0.25%, the relative permeability modifier that the concentration of octyl phenol polyoxyethylene ether is 0.1%.
After the present embodiment processing, the contact angle of Yuan You Xiang Shentiaojieji quartz system is 148 °.With the water flooding of measurement
Crude oil eluting rate be 8% to compare, the crude oil eluting rate using the oil film removal relative permeability modifier in the present embodiment is 35%；It should
Interfacial tension can be reduced to 10 between relative permeability modifier and Shengli crude-1The mN/m order of magnitude.
Embodiment 3
The preparation of wettability modification oil film removal relative permeability modifier
1) it by 4- (1- propyl) octyl benzene sulfonic acid potassium and dodecyl polyoxyethylene ether, grinds respectively；
2) described two substances are weighed respectively, are added in clean container after evenly mixing；
3) finally simulated formation water is added in said vesse, is sufficiently stirred at room temperature, obtains 4- (1- propyl) octyl benzene sulphur
The concentration of sour potassium is 0.5%, the relative permeability modifier that the concentration of dodecyl polyoxyethylene ether is 0.05%.
After the present embodiment processing, the contact angle of Yuan You Xiang Shentiaojieji quartz system is 152 °.With the water flooding of measurement
Crude oil eluting rate be 8% to compare, the crude oil eluting rate using the oil film removal relative permeability modifier in the present embodiment is 38%；It should
Interfacial tension can be reduced to 10 between relative permeability modifier and Shengli crude-1The mN/m order of magnitude.
Embodiment 4
The preparation of wettability modification oil film removal relative permeability modifier
1) it by linear alkyl benzene sulphonate and dodecyl polyoxyethylene ether, grinds respectively；
2) described two substances are weighed respectively, are added in clean container after evenly mixing；
3) finally simulated formation water is added in said vesse, is sufficiently stirred at room temperature, obtains linear dodecylbenzene sulfonic acid
The concentration of sodium is 0.4%, the relative permeability modifier that the concentration of dodecyl polyoxyethylene ether is 0.05%.
After the present embodiment processing, the contact angle of Yuan You Xiang Shentiaojieji quartz system is 148 °.With the water flooding of measurement
Crude oil eluting rate be 8% to compare, the crude oil eluting rate using the oil film removal relative permeability modifier in the present embodiment is 40%；It should
Interfacial tension can be reduced to 10 between relative permeability modifier and Shengli crude-1The mN/m order of magnitude.
Embodiment 5
The preparation of wettability modification oil film removal relative permeability modifier
1) it by decyl sodium naphthalene sulfonate and polyoxyethylene polypropylene ether, grinds respectively；
2) described two substances are weighed respectively, are added in clean container after evenly mixing；
3) finally simulated formation water is added in said vesse, is sufficiently stirred at room temperature, obtains the concentration of decyl sodium naphthalene sulfonate
It is 1.0%, the relative permeability modifier that the concentration of polyoxyethylene polypropylene ether is 0.1%.
After the present embodiment processing, the contact angle of Yuan You Xiang Shentiaojieji quartz system is 149 °.With the water flooding of measurement
Crude oil eluting rate be 8% to compare, the crude oil eluting rate using the oil film removal relative permeability modifier in the present embodiment is 35%；It should
Interfacial tension can be reduced to 10 between relative permeability modifier and Shengli crude-1The mN/m order of magnitude.
It can be shown that relative permeability modifier of the invention increases crude oil in the contact angle of rock surface by above-mentioned implementation, pass through wetting
Property change make oil film removal, with it is stronger removing oil film ability；Thus it is suitable for the exploitation of high temperature and high salt oil deposit, improves
Recovery ratio.
Claims (7)
1. a kind of wettability modification oil film removal relative permeability modifier, which is characterized in that by weight percentage, by following components
It constitutes:
The anionic surfactant of 0.01-10wt%,
The nonionic surfactant of 0.001-2wt%,
Surplus is water,
Wherein the sum of each component weight percent is 100%.
2. the wettability modification oil film removal relative permeability modifier of claim 1, wherein by weight percentage, by following components
It constitutes:
0.05-5wt%, the anionic surfactant of more preferable 0.1-1wt%,
0.01-1wt%, the nonionic surfactant of more preferable 0.05-0.5wt%,
Surplus is water,
Wherein the sum of each component weight percent is 100%.
3. the wettability modification oil film removal relative permeability modifier of claim 1 divides wherein the anionic surfactant has
Minor: R-Ar-X-M+, wherein R is C8-C26, preferably C8-C20, more preferable C8-C15Linear or branched alkyl group, Ar be phenyl or naphthalene
Base, X SO3 -Or CO2 -, M is selected from alkali or alkaline earth metal, preferably Na+、K+、Ca2+Or Mg2+。
4. the relative permeability modifier of claim 1, wherein the nonionic surfactant is selected from: octyl phenol polyoxyethylene ether, nonyl
Base phenol polyethenoxy ether, polyoxyethylene poly-oxygen propylene aether, dodecyl polyoxyethylene ether, in lauric acid polyoxyethylene ester at least
It is a kind of.
5. the relative permeability modifier of claim 1, the water is water flooding or simulated formation water.
6. a kind of preparation method of the relative permeability modifier for oil film removal, specifically includes the following steps:
1) anionic surfactant and nonionic surfactant are crushed respectively；
2) anionic surface agent living and nonionic surfactant are uniformly mixed according to the ratio in claim 1；
3) water is added, is sufficiently stirred or vibrates to get required product.
7. preparation method as claimed in claim 6, wherein step 3) carries out at normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811182249.3A CN109266321A (en) | 2018-10-11 | 2018-10-11 | Wettability modification oil film removal relative permeability modifier and preparation method thereof |
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| CN201811182249.3A CN109266321A (en) | 2018-10-11 | 2018-10-11 | Wettability modification oil film removal relative permeability modifier and preparation method thereof |
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Cited By (1)
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| CN115368882A (en) * | 2022-10-24 | 2022-11-22 | 东营市汇友石油新技术开发有限责任公司 | Phase permeation regulator for oil field and preparation method thereof |
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Application publication date: 20190125 |