CN102040993A - Oil displacement agent suitable for ultrahigh-temperature ultrahigh-salt ultrahigh-calcium-magnesium homogeneous oil reservoir - Google Patents
Oil displacement agent suitable for ultrahigh-temperature ultrahigh-salt ultrahigh-calcium-magnesium homogeneous oil reservoir Download PDFInfo
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- CN102040993A CN102040993A CN2010101747589A CN201010174758A CN102040993A CN 102040993 A CN102040993 A CN 102040993A CN 2010101747589 A CN2010101747589 A CN 2010101747589A CN 201010174758 A CN201010174758 A CN 201010174758A CN 102040993 A CN102040993 A CN 102040993A
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- oil reservoir
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 12
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 8
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 7
- 239000008398 formation water Substances 0.000 claims abstract description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 4
- -1 polyoxyethylene nonylphenol Polymers 0.000 claims description 39
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 14
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 13
- 239000011777 magnesium Substances 0.000 claims description 12
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 5
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 abstract description 10
- 230000033558 biomineral tissue development Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 3
- RZXLPPRPEOUENN-UHFFFAOYSA-N Chlorfenson Chemical compound C1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=C(Cl)C=C1 RZXLPPRPEOUENN-UHFFFAOYSA-N 0.000 abstract 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 abstract 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 29
- 125000003010 ionic group Chemical group 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 101000650578 Salmonella phage P22 Regulatory protein C3 Proteins 0.000 description 3
- 101001040920 Triticum aestivum Alpha-amylase inhibitor 0.28 Proteins 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004064 cosurfactant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000710 polymer precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Lubricants (AREA)
Abstract
The invention relates to an oil displacement agent suitable for an ultrahigh-temperature ultrahigh-salt ultra-calcium-magnesium homogeneous oil reservoir; the formula comprises the following components in percentage by mass: 0.0005 to 0.002 percent of nonylphenol polyoxyethylene ether sulfonate; fatty alcohol-polyoxyethylene ether sulfate 0.0005-0.002%; 0.0001-0.0005% of polyvinyl alcohol; the rest is simulated formation water or oil field formation water; the oil displacement agent has the mineralization degree of 4-16 multiplied by 10 at the temperature of 100 ℃ and 130 DEG C4mg/L, calcium and magnesium ion content of 5-9 × 103Under the condition of formation water of the ultrahigh-temperature ultrahigh-salt oil reservoir of mg/L, the tension of the oil water surface can be ultralow under the alkali-free condition, the tension of the high oil-water interface of the oil reservoir can be obviously reduced, and the wettability of rocks is improved, so that the capillary resistance is reduced, the oil washing efficiency is improved, the recovery ratio is improved, the range is large, the practical range is wide, and the chemical oil displacement agent has potential.
Description
Technical field
The present invention relates to a kind ofly be applied to temperature 100-130 ℃, salinity 5-16 * 10
4Mg/L, wherein calcium ions and magnesium ions content is 5-9 * 10
3The super calcium magnesium of a kind of suitable ultrahigh-temperature superelevation salt homogeneous oil reservoir oil-displacing agent of mg/L.
Background technology
Oil production is to the later stage, and the stable yields difficulty is big, and the situation is tense in exploitation.Under the present water drive condition, recovery ratio also has only 35-45%, and most of crude oil rests on the stratum to be difficult to exploit.In order to improve oil recovery factor, common polymer is driven, caustic waterflooding, surfactant flooding and combination flooding chemical flooding methods such as (binary or ternary are compound).The chemical flooding method is the main method that tertiary oil recovery improves recovery ratio.Wherein, tensio-active agent has the high oil water interfacial tension of the oil reservoir of reduction, improves the wettability of rock, thereby reduces the hollow billet resistance, and it is big, practical wide to improve displacement efficiency raising recovery ratio amplitude, is a kind of chemical oil displacement agent of potentialization.At temperature 100-130 ℃, salinity 5-16 * 10
4Mg/L, wherein calcium ions and magnesium ions content is 5-9 * 10
3The ultrahigh-temperature superelevation salt oil deposit of mg/L, the chemical flooding relevant with polymkeric substance causes that owing to the thermal destruction of polymkeric substance and the calcium ions and magnesium ions of high density polymer precipitation is difficult to gather effect, existing surfactant flooding agent also is difficult to satisfy the requirement of the ultrahigh-temperature superelevation salt oil deposit displacement of reservoir oil, and it is very big that this class oil reservoir is improved the recovery ratio difficulty.
In order to solve above-mentioned difficulties, research is fit to the displacing surfactant system of ultrahigh-temperature superelevation salinity oil reservoir, provides solution for improving recovery ratio behind the oilfield water flooding, has the huge social economic benefit.Tensio-active agent kind as oil-displacing agent is a lot of at present, mainly is anionic sulphonate (sulfonated petro-leum, alkylbenzene sulfonate etc.) and metal carboxylate, multiple nonionogenic tenside such as OP series etc.The anion surfactant temperature resistance is good, but the anticalcium magnesium ion is poor, and the nonionogenic tenside salt resistance is good but heat-resisting property is poor, and single special surface promoting agent does not reach ultralow requirement yet.Therefore need one or more can be under ultrahigh-temperature superelevation salt oil deposit environment, good stability reduces the high-efficient oil-displacing agent that the water-oil interface activity well can significantly change the wettability of rock.
Summary of the invention
The objective of the invention is at existing displacing surfactant system heat and salinity tolerance indifferently, the super calcium magnesium of a kind of suitable ultrahigh-temperature superelevation salt homogeneous oil reservoir oil-displacing agent is provided.This oil-displacing agent is at temperature 100-130 ℃, salinity 4-16 * 10
4Mg/L, wherein calcium ions and magnesium ions content is 5-9 * 10
3Under the ultrahigh-temperature superelevation salt high contents of calcium and magnesium reservoir formation water condition of mg/L, under the alkali-free condition, can make noodle tension force reach ultralow.Drip this solution on the petrographic thin section of crude oil (Ru Tazhong) etch 5d, wetting angle is reduced to and is close to 0, reaches the state of sprawling.
The preparation method of the super calcium magnesium of suitable ultrahigh-temperature superelevation salt provided by the invention homogeneous oil reservoir oil-displacing agent fills a prescription to form:
(1) polyoxyethylene nonylphenol ether sulfonate 0.0005-0.002%;
(2) fatty alcohol polyoxyethylene ether sulfate 0.0005-0.002%;
(3) polyvinyl alcohol 0.0001-0.0005%;
(4) all the other are simulated formation water or oil field stratum water.
In above-mentioned oil-displacing agent formula system, these two kinds of negatively charged ion-nonionogenic tensides of polyoxyethylene nonylphenol ether sulfonate and fatty alcohol polyoxyethylene ether sulfate are aided with the polyvinyl alcohol cosurfactant more jointly as the major surfaces promoting agent.This oil-displacing agent interfacial activity excellence has good heat and salinity tolerance.
During use, polyoxyethylene nonylphenol ether sulfonate and polyoxyethylene alkyl ether sulfate salt are undertaken composite by mass ratio (3: 1)-(1: 3).Polyoxyethylene nonylphenol ether sulfonate and polyoxyethylene alkyl ether sulfate salt itself have good heat and salinity tolerance, energy complexing high contents of calcium and magnesium ion, and the synergy of the two can make oil water interfacial tension further reduce.Reduce the high oil water interfacial tension of oil reservoir with oil-displacing agent of the present invention, improve the wettability of rock, thereby reduce the hollow billet resistance, improve displacement efficiency.
Its ethoxy group number of above-mentioned polyoxyethylene nonylphenol ether sulfonate is 3-9;
Above-mentioned its carbochain of polyoxyethylene alkyl ether sulfate salt is C
12-C
18And ethoxy group number 3-9.
The polyvinyl alcohol model is 1799 or 1788 all can;
The present invention takes the lead in making the highly efficiency compositional oil-displacing agent that is applied to the super calcium magnesium of ultrahigh-temperature superelevation salt oil reservoir, has following beneficial effect:
Flooding system of the present invention need not any alkali can form 10 with crude oil
-3The ultra low interfacial tension of mN/m has been avoided the huge injury of alkali to oil field stratum and oil well.
Flooding system of the present invention need not any alkali and can significantly be changed with the rock wettability of crude oil etch, and wettability can reach the state of sprawling.
Flooding system of the present invention has the ability that reduces interfacial tension preferably under the salinity of broad, permanent stability are good.
Embodiment
Embodiment 1
Get polyoxyethylene nonylphenol ether sulfonate 0.05g, polyoxyethylene alkyl ether sulfate salt 0.05g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.01g/g.Its total mineralization is 55060mg/L, and the ionic group of mineralized water becomes: 15726mg/L Na
++ 4000mg/L Ca
2++ 100mg/L Mg
2++ 35234mg/L Cl
-Stir 30min, make its perfect solution, promptly get the oil-displacing agent system.Outward appearance is as clear as crystal, sediment-free.Measuring its interfacial tension at 110 ℃ is 3.7 * 10
-3MN/m, wettability is for sprawling.
Embodiment 2
Get polyoxyethylene nonylphenol ether sulfonate 0.10g, polyoxyethylene alkyl ether sulfate salt 0.05g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.02g/g.Its total mineralization is 97887mg/L, the consisting of of mineralized water: 31453mg/L Na
++ 6000mg/L Ca
2++ 300mg/L Mg
2++ 60314mg/L Cl
-Stir 30min, make its perfect solution, promptly get the oil-displacing agent system.Measuring its interfacial tension at 130 ℃ is 2.5 * 10
-3MN/m, wettability is for sprawling.
Embodiment 3
Get polyoxyethylene nonylphenol ether sulfonate 0.075g, polyoxyethylene alkyl ether sulfate salt 0.025g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.05g/g.Its total mineralization is 144179mg/L, and the ionic group of mineralized water becomes: 47179mg/L Na
++ 8000mg/L Ca
2++ 500mg/L Mg
2++ 88500mg/L Cl
-Stir 30min, make its perfect solution, promptly get the oil-displacing agent system.Measuring its interfacial tension at 130 ℃ is 6.5 * 10
-3MN/m, wettability is for sprawling.
Embodiment 4
Get polyoxyethylene nonylphenol ether sulfonate 0.025g, polyoxyethylene alkyl ether sulfate salt 0.075g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.05g/g.Its total mineralization is 167374mg/L, and the ionic group of mineralized water becomes: 55043mg/L Na
++ 9000mg/L Ca
2++ 600mg/L Mg
2++ 102731mg/L Cl
-Stir 30min, make its perfect solution, promptly get the oil-displacing agent system.Measuring its interfacial tension at 130 ℃ is 6.5 * 10
-3MN/m, wettability is for sprawling.
Embodiment 5
Get polyoxyethylene nonylphenol ether sulfonate 0.05g, polyoxyethylene alkyl ether sulfate salt 0.05g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.03g/g.Experiment is oil field, a Tarim Basin TZ4-6-H16 output profit sample with oil and water.This well CIII homogeneous section local water total mineralization is 43390mg/L, and the ionic group of mineralized water becomes: 14790mg/LK
+, Na
+(with Na
+Meter)+1672mg/L Ca
2++ 178mg/L Mg
2 ++ 25500mg/L Cl
-+ 841mg/L SO
4 2-+ 289mg/L HCO
3 -+ 3mg/L Ba
2+, Sr
2+(with Ba
2+Meter).Measuring its interfacial tension at 110 ℃ is 3.7 * 10
-3MN/m, wettability is for sprawling.
Embodiment 6
Get polyoxyethylene nonylphenol ether sulfonate 0.08g, polyoxyethylene alkyl ether sulfate salt 0.04g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.01g/g.Experiment is a 4-37-H18 output profit sample in the tower of oil field, Tarim Basin with oil and water.This well CIII homogeneous section local water total mineralization is 121600mg/L, and the ionic group of mineralized water becomes: 38870mg/L K
+, Na
+(with Na
+Meter)+7304mg/L Ca
2++ 602mg/L Mg
2++ 74210mg/L Cl
-+ 395mg/L SO
4 2-+ 211mg/L HCO
3 -Measuring its interfacial tension at 110 ℃ is 7.9 * 10
-3MN/m, wettability is for sprawling.
Embodiment 7
Get polyoxyethylene nonylphenol ether sulfonate 0.075g, polyoxyethylene alkyl ether sulfate salt 0.05g joins in the 50ml mineralized water, and adding massfraction again is the polyvinyl alcohol solution 1ml of 0.02g/g.Experiment is a 4-7-H8 output profit sample in the tower of oil field, Tarim Basin with oil and water.This well CIII homogeneous section local water total mineralization is 85570mg/L, and the ionic group of mineralized water becomes: 27900mg/L K
+, Na
+(with Na
+Meter)+4568mg/L Ca
2++ 466mg/LMg
2++ 52020mg/L Cl
-+ 433mg/L SO
4 2-+ 178mg/L HCO
3 -Measuring its interfacial tension at 110 ℃ is 5.2 * 10
-3MN/m, wettability is for sprawling.
Claims (4)
1. the super calcium magnesium of suitable ultrahigh-temperature superelevation salt homogeneous oil reservoir oil-displacing agent, temperature is 100-130 ℃, salinity is 5-16 * 10
4Mg/L, calcium ions and magnesium ions content are 5-9 * 10
3Mg/L; It is characterized in that:
Prescription is formed:
(1) polyoxyethylene nonylphenol ether sulfonate 0.0005-0.002%
(2) fatty alcohol polyoxyethylene ether sulfate 0.0005-0.002%
(3) polyvinyl alcohol 0.0001-0.0005%
(4) all the other are simulated formation water or oil field stratum water.
2. the super calcium magnesium of suitable ultrahigh-temperature superelevation salt according to claim 1 homogeneous oil reservoir oil-displacing agent, it is characterized in that: polyoxyethylene nonylphenol ether sulfonate and polyoxyethylene alkyl ether sulfate salt are undertaken composite by mass ratio (3: 1)-(1: 3).
3. the super calcium magnesium of suitable ultrahigh-temperature superelevation salt according to claim 1 homogeneous oil reservoir oil-displacing agent, it is characterized in that: its ethoxy group number of above-mentioned polyoxyethylene nonylphenol ether sulfonate is 3-9;
4. the super calcium magnesium of suitable ultrahigh-temperature superelevation salt according to claim 1 homogeneous oil reservoir oil-displacing agent, it is characterized in that: above-mentioned its carbochain of polyoxyethylene alkyl ether sulfate salt is C
12-C
18And ethoxy group number 3-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010174758 CN102040993B (en) | 2010-05-12 | 2010-05-12 | Oil displacement agent suitable for ultrahigh-temperature ultrahigh-salt ultrahigh-calcium-magnesium homogeneous oil reservoir |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010174758 CN102040993B (en) | 2010-05-12 | 2010-05-12 | Oil displacement agent suitable for ultrahigh-temperature ultrahigh-salt ultrahigh-calcium-magnesium homogeneous oil reservoir |
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| Publication Number | Publication Date |
|---|---|
| CN102040993A true CN102040993A (en) | 2011-05-04 |
| CN102040993B CN102040993B (en) | 2013-07-31 |
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|---|---|---|---|
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834378A (en) * | 2014-03-14 | 2014-06-04 | 西北大学 | Nonyl phenol polyoxyethylene ether sulfonate-containing dibasic compound surfactant |
| CN104232045A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Composite surface active agent composition and preparation method and application thereof |
| CN104232047A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Surface active agent composition for tertiary oil recovery and preparation method and application thereof |
| CN104232046A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Surface active agent composition for chemical displacement of reservoir oil and preparation method and application thereof |
| CN105001848A (en) * | 2015-06-17 | 2015-10-28 | 成都高普石油工程技术有限公司 | Preparing method for compound chemical flooding used for tertiary oil recovery |
| CN107365574A (en) * | 2017-06-15 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of viscosity reduction oil displacement agent for common heavy oil reservoir and preparation method thereof |
| CN109054796A (en) * | 2018-08-22 | 2018-12-21 | 东营利丰化工新材料有限公司 | A kind of high efficiency composition oil displacement agent and preparation method thereof |
| CN110467910A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | Oil displacement agent composition and preparation method thereof and reducing thick oil viscosity are handled up recovery method |
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| US4764307A (en) * | 1985-06-15 | 1988-08-16 | The British Petroleum Company P.L.C. | Preparation of surfactants |
| CN101177606A (en) * | 2007-12-12 | 2008-05-14 | 江南大学 | Salt-tolerant oil displacement agent and application thereof |
| CN101255127A (en) * | 2008-04-01 | 2008-09-03 | 江南大学 | Synthesis of Fatty Alcohol Polyoxyethylene Ether Sulfonate and Its Compounding for EOR Oil Displacement Agent |
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Patent Citations (3)
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| US4764307A (en) * | 1985-06-15 | 1988-08-16 | The British Petroleum Company P.L.C. | Preparation of surfactants |
| CN101177606A (en) * | 2007-12-12 | 2008-05-14 | 江南大学 | Salt-tolerant oil displacement agent and application thereof |
| CN101255127A (en) * | 2008-04-01 | 2008-09-03 | 江南大学 | Synthesis of Fatty Alcohol Polyoxyethylene Ether Sulfonate and Its Compounding for EOR Oil Displacement Agent |
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| CN104232045A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Composite surface active agent composition and preparation method and application thereof |
| CN104232047A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Surface active agent composition for tertiary oil recovery and preparation method and application thereof |
| CN104232046A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Surface active agent composition for chemical displacement of reservoir oil and preparation method and application thereof |
| CN104232045B (en) * | 2013-06-17 | 2017-02-15 | 中国石油化工股份有限公司 | Composite surface active agent composition and preparation method and application thereof |
| CN104232046B (en) * | 2013-06-17 | 2017-02-15 | 中国石油化工股份有限公司 | Surface active agent composition for chemical displacement of reservoir oil and preparation method and application thereof |
| CN103834378A (en) * | 2014-03-14 | 2014-06-04 | 西北大学 | Nonyl phenol polyoxyethylene ether sulfonate-containing dibasic compound surfactant |
| CN105001848A (en) * | 2015-06-17 | 2015-10-28 | 成都高普石油工程技术有限公司 | Preparing method for compound chemical flooding used for tertiary oil recovery |
| CN107365574A (en) * | 2017-06-15 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of viscosity reduction oil displacement agent for common heavy oil reservoir and preparation method thereof |
| CN107365574B (en) * | 2017-06-15 | 2020-04-17 | 中国石油化工股份有限公司 | Viscosity-reducing oil displacement agent for common heavy oil reservoir and preparation method thereof |
| CN110467910A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | Oil displacement agent composition and preparation method thereof and reducing thick oil viscosity are handled up recovery method |
| CN110467910B (en) * | 2018-05-11 | 2021-08-06 | 中国石油化工股份有限公司 | Oil displacement agent composition, preparation method thereof and viscosity-reducing huff and puff mining method of thick oil |
| CN109054796A (en) * | 2018-08-22 | 2018-12-21 | 东营利丰化工新材料有限公司 | A kind of high efficiency composition oil displacement agent and preparation method thereof |
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|---|---|
| CN102040993B (en) | 2013-07-31 |
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