CN104017555B - A kind of alkali-free hyposmosis displacing surfactant system and preparation method thereof, application - Google Patents
A kind of alkali-free hyposmosis displacing surfactant system and preparation method thereof, application Download PDFInfo
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- CN104017555B CN104017555B CN201410271114.XA CN201410271114A CN104017555B CN 104017555 B CN104017555 B CN 104017555B CN 201410271114 A CN201410271114 A CN 201410271114A CN 104017555 B CN104017555 B CN 104017555B
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- alkali
- polyoxyethylene ether
- hyposmosis
- free
- oil
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- 239000004094 surface-active agent Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 24
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 24
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000006184 cosolvent Substances 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 46
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical group CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 10
- -1 carboxyl acetic acid sulphur sodium Chemical compound 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000010779 crude oil Substances 0.000 description 10
- 239000003513 alkali Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 201000008827 tuberculosis Diseases 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000015784 hyperosmotic salinity response Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a kind of alkali-free hyposmosis displacing surfactant system; it is characterized in that; it is made up of the component of following weight/mass percentage composition: fatty alcohol-polyoxyethylene ether 0.3～0.5%; Octylphenol polyoxyethylene ether 0.1～0.3%; 2 pairs of alkylbenzoyl 1 carboxyl acetic acid sulphur sodium 3～5%; organic cosolvent 2～4%, injects water surplus.The oil displacement system compatibility of the present invention is reasonable, by the mutual synergism between each component, has the highest interfacial activity, permeability and wash oil character good, can improve oil recovery factor, it is adaptable to the displacement of reservoir oil application under the conditions of extra-low-permeability reservoir.The invention also discloses the preparation method of a kind of alkali-free hyposmosis displacing surfactant system; after fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether, 2 pairs of alkylbenzoyl 1 carboxyl acetic acid sulphur sodium are mixed by proportioning with organic cosolvent; adding the water of surplus, sonic oscillation final vacuum stands.The preparation method process of the present invention is simple, workable, low cost, is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of oil displacement agent, especially relate to a kind of alkali-free hyposmosis displacing surfactant system
And preparation method thereof.
Background technology
The exploitation in oil field is broadly divided into primary oil recovery, secondary oil recovery and tertiary oil recovery.The primary oil recovery in oil field and
Secondary oil recovery about can only extraction crude oil total amount about 1/3, remaining 2/3 crude oil is accomplished by by three times
Oil recovery technique is exploited.In tertiary oil recovery, mainly lived by a certain amount of polymer of addition, surface
Property the material such as agent, alkali, improve inject water involves scope, change viscosity of crude and reduce water interfacial tension,
Reach to regulate the wettability of bottom surface, improve capillary number, increase crude oil dispersibility in water, change
The purpose of rheological characteristic of crude oil, thus increase substantially the recovery ratio of crude oil.Tertiary oil recovery technology has become as me
The major measure of oil recovery factor improves in state.
The oil displacement system widely applied in China oil field at present is ASP ternary system (alkali, surfactant-poly-
The compound displacement of reservoir oil), it is primarily present problems with: the breakdown of emulsion to crude oil that adds of (1) alkali brings certain difficulty,
And easily harden in oil field after addition alkali, block oil outlet, be unfavorable for the further exploitation of remaining oil；(2) alkali
Meeting corrosion tank, pipeline and injection device.
Summary of the invention
The invention aims to solve the problems referred to above existing for existing ternary oil displacement system, it is provided that one
Planting compatibility reasonable, permeability is strong with the ability of emulsion dispersion crude oil, interfacial activity and oil displacement efficiency height, can carry
The alkali-free hyposmosis displacing surfactant system of high oil recovery factor.
Present invention also offers the preparation method of a kind of alkali-free hyposmosis displacing surfactant system, this is prepared
Method processing step is simple, workable, low cost, is suitable for large-scale industrial production.
To achieve these goals, the present invention is by the following technical solutions:
A kind of alkali-free hyposmosis displacing surfactant system, it is characterised in that it is contained by following percent mass
The component composition of amount: fatty alcohol-polyoxyethylene ether 0.3～0.5%, Octylphenol polyoxyethylene ether 0.1～0.3%,
2-, to alkylbenzoyl-1-carboxyl acetic acid sulphur sodium 3～5%, organic cosolvent 2～4%, injects water surplus.This
The oil displacement system of invention, by designing the optimization of formula, uses alkali-free formula, and compatibility is reasonable, utilizes each group
/ mutual synergism, salt tolerance, heat stability are high, have the highest interfacial activity, permeability
Good with wash oil character, oil recovery factor can be improved, it is adaptable to the displacement of reservoir oil application under the conditions of extra-low-permeability reservoir.
As preferably, described organic cosolvent is butanol or isopropanol.
A kind of preparation method of alkali-free hyposmosis displacing surfactant system, by fatty alcohol-polyoxyethylene ether,
Alkylbenzoyl-1-carboxyl acetic acid sulphur sodium is pressed proportioning with organic cosolvent by Octylphenol polyoxyethylene ether, 2-
After mixing, add the water of surplus, under vacuum condition, after sonic oscillation 10～30min, stand 1～2h.The present invention
Preparation method process simple, easily operate, by mixture, wherein sonic oscillation coordinates vacuum standing,
To ensure homogeneity and the stability of whole oil displacement system.
The application when three displacement of reservoir oils of a kind of alkali-free hyposmosis displacing surfactant system.
Therefore, there is advantages that
(1) by designing the optimization of formula, using alkali-free formula, compatibility is reasonable, utilizes between each component
Mutual synergism, salt tolerance, heat stability are high, have the highest interfacial activity, permeability and washing oil
Performance is good, can improve oil recovery factor, it is adaptable to the displacement of reservoir oil application under the conditions of extra-low-permeability reservoir；
(2) preparation method processing step is simple, workable, low cost, is suitable for large-scale industry metaplasia
Produce, coordinate vacuum to stand, to ensure homogeneity and the stability of whole oil displacement system by sonic oscillation.
Detailed description of the invention
Below by detailed description of the invention, the present invention will be further described.
In the present invention, if not refering in particular to, all percentage ratios are unit of weight, all devices and raw material
Buy from market or the industry is conventional, the method in following embodiment, if no special instructions, it is this
Field conventional method, wherein, alkylbenzoyl-1-carboxyl acetic acid sulphur sodium can be passed through by the 2-in each embodiment
(alkylbenzoyl-1-carboxyl acetic acid sulphur sodium is developed by surfactant oil displacement 2-, and Zhao has just etc., oil field
Chemistry, December in 2005 the 4th phase of volume 22 on the 25th) described in preparation method be prepared.
Embodiment 1
A kind of alkali-free hyposmosis displacing surfactant system, it is made up of the component of following weight/mass percentage composition:
Fatty alcohol-polyoxyethylene ether 0.3%, Octylphenol polyoxyethylene ether 0.1%, 2-is to alkylbenzoyl-1-carboxylic
Guanidine-acetic acid sulphur sodium 3%, isopropanol 2%, injects water surplus.
This alkali-free hyposmosis displacing surfactant system prepares by the following method:
By fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether, 2-to alkylbenzoyl-1-carboxyl second
After acid sulphur sodium is mixed by proportioning with organic cosolvent, add the water of surplus, in vacuum after sonic oscillation 10min
Under the conditions of stand 1h.
Embodiment 2
A kind of alkali-free hyposmosis displacing surfactant system, it is made up of the component of following weight/mass percentage composition:
Fatty alcohol-polyoxyethylene ether 0.5%, Octylphenol polyoxyethylene ether 0.2%, 2-is to alkylbenzoyl-1-carboxylic
Guanidine-acetic acid sulphur sodium 4%, isopropanol 3%, injects water surplus.
This alkali-free hyposmosis displacing surfactant system prepares by the following method:
By fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether, 2-to alkylbenzoyl-1-carboxyl second
After acid sulphur sodium is mixed by proportioning with organic cosolvent, add the water of surplus, in vacuum after sonic oscillation 150min
Under the conditions of stand 1.5h.
Embodiment 3
A kind of alkali-free hyposmosis displacing surfactant system, it is made up of the component of following weight/mass percentage composition:
Fatty alcohol-polyoxyethylene ether 0.5%, Octylphenol polyoxyethylene ether 0.3%, 2-is to alkylbenzoyl-1-carboxylic
Guanidine-acetic acid sulphur sodium 5%, butanol 4%, injects water surplus.
This alkali-free hyposmosis displacing surfactant system prepares by the following method:
By fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether, 2-to alkylbenzoyl-1-carboxyl second
After acid sulphur sodium is mixed by proportioning with organic cosolvent, add the water of surplus, in vacuum after sonic oscillation 30min
Under the conditions of stand 2h.
The concrete application process of the present invention is: after water drive, then tuberculosis 0.3～0.5PV (rock pore volume)
Alkali-free hyposmosis displacing surfactant system of the present invention carry out the displacement of reservoir oil.
Imitation oil displacement experiment is tested
The oil displacement system obtained each embodiment respectively is simulated oil displacement test, the method for imitation oil displacement experiment test
For: with simulation water, (simulation water ion consists of: Na+With K+For 3091.96mg/L, Ca2+For 276.17mg/L,
Mg2+For 158.68mg/L, CO3 2+For 14.21mg/L, HCO3 -For 311.48mg/L, SO4 2-For 85.92mg/L,
Cl-It is 9374.13 for 5436.34mg/L, TDS) by saturated for rock core (tri-layers of heterogeneous body side's rock core of 30cm),
Measuring the pore volume (115.78ml) of rock core, then crude oil (1700mpa.s, 65 DEG C) carries out saturated,
Being simulated the displacement of reservoir oil at 65 DEG C, first water drive to water content is 95%, surveys water drive and improves crude oil taking rate, then
The oil displacement system that tuberculosis 0.3PV (rock pore volume) each embodiment obtains, the displacement of reservoir oil to water content more than 98%,
Survey and can improve oil recovery factor on the basis of water drive again, shown in result of the test following table:
| Project | Oil recovery factor after water drive | Improve recovery ratio |
| Embodiment 1 | 25.12% | 54.45% |
| Embodiment 2 | 24.61% | 56.2% |
| Embodiment 3 | 25.48% | 60.2% |
As can be seen from the table, after the alkali-free hyposmosis displacing surfactant system of the tuberculosis present invention, can carry
High oil recovery factor more than at least 54%, illustrates the alkali-free hyposmosis displacing surfactant system compatibility of the present invention
Rationally, permeability is strong with the ability of emulsion dispersion crude oil, and interfacial activity is high with oil displacement efficiency.
Embodiment described above is the one preferably scheme of the present invention, and the present invention not makees any shape
Restriction in formula, on the premise of without departing from the technical scheme described in claim also have other variant and
Remodeling.
Claims (3)
1. an alkali-free hyposmosis displacing surfactant system, it is characterised in that it is by following percent mass
The component composition of content: fatty alcohol-polyoxyethylene ether 0.3～0.5%, Octylphenol polyoxyethylene ether 0.1～0.3%,
2-, to alkylbenzoyl-1-carboxyl ethyl sulfonic acid sodium 3～5%, organic cosolvent 2～4%, injects water surplus, institute
Stating organic cosolvent is butanol or isopropanol.
2. a preparation method for alkali-free hyposmosis displacing surfactant system as claimed in claim 1,
It is characterized in that, by fatty alcohol-polyoxyethylene ether, Octylphenol polyoxyethylene ether, 2-to alkylbenzoyl
After-1-carboxyl ethyl sulfonic acid sodium is mixed by proportioning with organic cosolvent, add the injection water of surplus, sonic oscillation
Under vacuum condition, 1～2h is stood after 10～30min.
3. an alkali-free hyposmosis displacing surfactant system as claimed in claim 1 is when three displacement of reservoir oils
Application.
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| 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 |
| CN114921239A (en) * | 2022-02-11 | 2022-08-19 | 中国石油天然气集团有限公司 | Surfactant composition for oil displacement and preparation and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396088A (en) * | 1973-12-28 | 1975-05-29 | Texaco Development Corp | Secondary recovery process using surfactant mixtures |
| CN101445722A (en) * | 2008-12-30 | 2009-06-03 | 合肥新星油田化学剂有限责任公司 | Oil displacement agent suitable for surfactant for low-permeability oilfield, and preparation method thereof |
| CN101705083A (en) * | 2009-11-16 | 2010-05-12 | 山东德仕化工集团有限公司 | Formulation of surfactant oil displacement system for anionic and nonionic oil displacement |
| CN102504792A (en) * | 2011-11-10 | 2012-06-20 | 西南石油大学 | Displacement agent for ultrahigh-temperature, high-salt, high-calcium, high-magnesium and homogeneous oil reservoirs |
| CN103666429A (en) * | 2012-09-04 | 2014-03-26 | 中国石油天然气股份有限公司 | Surfactant mixed system for displacing oil from low-permeability oilfields |
-
2014
- 2014-06-07 CN CN201410271114.XA patent/CN104017555B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396088A (en) * | 1973-12-28 | 1975-05-29 | Texaco Development Corp | Secondary recovery process using surfactant mixtures |
| CN101445722A (en) * | 2008-12-30 | 2009-06-03 | 合肥新星油田化学剂有限责任公司 | Oil displacement agent suitable for surfactant for low-permeability oilfield, and preparation method thereof |
| CN101705083A (en) * | 2009-11-16 | 2010-05-12 | 山东德仕化工集团有限公司 | Formulation of surfactant oil displacement system for anionic and nonionic oil displacement |
| CN102504792A (en) * | 2011-11-10 | 2012-06-20 | 西南石油大学 | Displacement agent for ultrahigh-temperature, high-salt, high-calcium, high-magnesium and homogeneous oil reservoirs |
| CN103666429A (en) * | 2012-09-04 | 2014-03-26 | 中国石油天然气股份有限公司 | Surfactant mixed system for displacing oil from low-permeability oilfields |
Non-Patent Citations (2)
| Title |
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| 驱油用表面活性剂2-对烷基苯甲酰基-1-羧基乙酸磺钠研制;赵有刚等;《油田化学》;20051225;第22卷(第4期);第340页左半栏第1段，第343页右半栏第1段 * |
| 高效驱油用表面活性剂室内实验研究;王小勇等;《油田化学》;20130325;第30卷(第1期);第70-73页 * |
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