CN109135709A - A kind of viscosity reduction oil displacement agent and oil displacement system suitable for heavy crude reservoir - Google Patents
A kind of viscosity reduction oil displacement agent and oil displacement system suitable for heavy crude reservoir Download PDFInfo
- Publication number
- CN109135709A CN109135709A CN201811098384.XA CN201811098384A CN109135709A CN 109135709 A CN109135709 A CN 109135709A CN 201811098384 A CN201811098384 A CN 201811098384A CN 109135709 A CN109135709 A CN 109135709A
- Authority
- CN
- China
- Prior art keywords
- accounts
- oil displacement
- viscosity reduction
- displacement agent
- heavy crude
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- 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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of viscosity reduction oil displacement agents suitable for heavy crude reservoir, by nonionic surfactant, cationic oligo surfactant, C1~C6Small organic molecule alcohol and water composition.The cationic oligo surfactant, selected from structural formula compound represented in formula (I), wherein R C4~C18Alkyl；X is selected from F‑、Cl‑、Br‑、I‑One or more of.The invention also discloses a kind of viscosity reduction oil displacement agent-polymeric systems suitable for heavy crude reservoir, are made of viscosity reduction oil displacement agent, molecular weight in 8,000,000~20,000,000 polyacrylamide and water.Viscosity reduction oil displacement agent of the invention can significantly reduce oil water interfacial tension, have preferable viscosity reduction and emulsification to viscous crude；Viscosity reduction oil displacement agent-polymeric system of the invention, can improve water-oil mobility ratio, and viscous force of the viscous crude in blowhole is greatly reduced, can effectively improve oil displacement efficiency, improves the recovery ratio of viscous crude.
Description
Technical field
The present invention relates to a kind of viscosity reduction oil displacement agents and oil displacement system suitable for heavy crude reservoir, and in particular to one kind contains spy
Determine the viscosity reduction oil displacement agent and oil displacement system of cationic oligo surfactant.
Background technique
As oil demand amount constantly increases, think that the marginal heavy oil and bitumen reservoir of not extraction value become tool in the past
There is the efficient resource of economic value.Contain more resin and asphalt in viscous crude, viscosity is big, poor fluidity, and exploitation difficulty is big, adopts
Yield is lower.
Polymer flooding is a kind of production technique means of common heavy crude reservoir raising recovery ratio, which is to pass through polymerization
Object is dissolved in water to improve aqueous viscosity, to reduce mobility ratio, increases water drive sweep efficiency.Although polymer flooding is to routine
Crude oil oil reservoir has significant oil increasing effect, but poor to the higher heavy crude reservoir oil displacement efficiency of viscosity.Surfactant usually with it is poly-
Object to be closed to be used in compounding to form binary combination flooding, action principle is acted on using the reduction oil water interfacial tension of surfactant, into
One step improves waterflood efficiency.The key of exploitation high-efficient oil-displacing agent is that exploitation is excellent with polymer compatibility and interface performance
Surfactant.At present displacement of reservoir oil conventional surfactant be anionic surfactant or anion-nonionic compound surfactant,
But it often needs that additive alkali is added when in use, to reach ultralow oil water interfacial tension.In addition, stronger for viscous force thick
Oil, the reduction degree of existing interface tension, which is often not enough to generate enough power, displaces remaining oil from the gap of rock stratum.
Currently, existing patent application discloses several polymer/displacing surfactant systems for heavy crude reservoir, example
Such as:
CN107365574A discloses a kind of viscosity reduction oil displacement agent for common heavy oil reservoir, by alkyl alcohol ethoxylates
Sulfuric acid, nonionic surfactant, anionic surfactant, organic solvent, sodium chloride and water composition.By this when use
Viscosity reduction oil displacement agent and polyacrylamide polymers are compounded to form oil displacement system, are suitable for reservoir temperature and are not higher than 85 DEG C, water flooding
Salinity is lower than 50000mg/L, and calcium ions and magnesium ions concentration is lower than 2000mg/L, and 150~1000mPas's of underground crude oil viscosity is general
Circulation thick oil oil reservoir has the preferable ability for reducing viscosity of crude and improving recovery ratio.
CN107365575A discloses a kind of viscosity reduction oil displacement agent and oil displacement system suitable for heavy crude reservoir, viscosity reduction oil displacement agent
It is made of non-ionic/anionic surfactant, ester type compound, wetting agent and water, it is multiple with polyacrylamide polymers
With in use, being suitable for stratum viscosity reaches the Shengli Viscous Crude Oil oil reservoir of 200mPas or more, thick oil recovery ratio can be effectively improved
17.6%~21.6%.
What these above-mentioned oil displacement systems used is conventional type anion or nonionic or both built surfactant,
In order to realize ultralow interfacial tension viscosity reduction oil displacement agent, dosage of surfactant is often larger, and existing system anticalcium magnesium ion
Ability it is poor, heavy crude reservoir application in be restricted.
Summary of the invention
For the above-mentioned prior art, the present invention provides a kind of viscosity reduction oil displacement agent and viscosity reduction drives suitable for heavy crude reservoir
Finish-polymeric system can effectively improve the recovery ratio of viscous crude, and salt-resistance is high (calcic magnesium ion), dosage of surfactant
It is low, it is at low cost, when use without plus alkali.
The present invention is achieved by the following technical solutions:
A kind of viscosity reduction oil displacement agent suitable for heavy crude reservoir, it is living by nonionic surfactant, cationic oligomeric surface
Property agent, C1~C6Small organic molecule alcohol and water composition, wherein nonionic surfactant accounts for 15%~50%, and cationic is low
Poly- surfactant accounts for 2%~10%, and small organic molecule alcohol accounts for 5%~10%, and surplus is water, by weight.
The nonionic surface active agent is selected from alkylphenol-polyethenoxy base ether and/or alkylol polyoxyethylene base ether.
The cationic oligo surfactant is selected from one or both of compound A, compound B, compound C
More than；The compound A, compound B, compound C structural formula respectively as shown in (a) (b) (c) in formula (I)；In formula (I), R
For C4~C18Alkyl, preferably C8~C16Alkyl；X is selected from F-、Cl-、Br-、I-One or more of.
Further, the degree of polymerization of the alkylphenol-polyethenoxy base ether and/or alkylol polyoxyethylene base ether be 3~
30, alkyl chain length is 6~20.For example, the nonylphenol polyoxyethylene ether series that Jiangsu Hai'an petrochemical plant can be selected to produce
The series of products such as NP-7, NP-10, NP-15 or fatty alcohol polyoxyethylene ether AEO-7, AEO-9, AEO-13.
Three kinds of compounds of structure shown in formula (I) are laboratory self-control, and preparation method is the synthesis side in following documents
Method (Preparation, Characterization and Properties of Novel Cationic Gemini
Surfactants with Rigid Amido Spacer Groups.J.Surfactants Deterg.2016,19(1):
91-99).Specifically using DL-malic acid dimethyl ester, trimethyl citrate or ethylenediamine tetra-acetic acid as primary raw material, by two
Step reaction, with the synthesis of higher yield.
The C1~C6Small organic molecule alcohol be selected from one or more of methanol, ethyl alcohol, propyl alcohol, isopropanol.
The viscosity reduction oil displacement agent the preparation method comprises the following steps: each component is mixed to obtain the final product.
A kind of viscosity reduction oil displacement agent-polymeric system suitable for heavy crude reservoir, by above-mentioned viscosity reduction oil displacement agent, polymer and water
Composition, wherein viscosity reduction oil displacement agent accounts for 0.1%~1%, and polymer accounts for 0.05%~0.3%, and surplus is water, by weight.It is excellent
Choosing, viscosity reduction oil displacement agent accounts for 0.5%, and polymer accounts for 0.2%, and surplus is water.
Further, the polymer is polyacrylamide of the molecular weight ranges 8,000,000~20,000,000.Preferably, institute
Stating polymer is the polyacrylamide that molecular weight is 15,000,000~20,000,000.
Viscosity reduction oil displacement agent-the polymeric system suitable for heavy crude reservoir is the preparation method comprises the following steps: each component is mixed equal
It is even to get.
Using reducing thick oil viscosity oil displacement agent of the invention, in lower dosage of surfactant and in the case where alkali is not added, energy
Ultralow interfacial tension is enough formed, the viscosity of viscous crude is effectively reduced, viscous force of the viscous crude in rock gap can be greatly reduced；It will drive
Finish is used in compounding with polymer, and polymer can not only improve aqueous viscosity in this oil displacement system, reduces mobility ratio, and can inhale
It is attached to olesome surface, plays the role of stable emulsion oil droplet, therefore oil displacement efficiency can be effectively improved, improves the harvesting of viscous crude
Rate.In addition, the oil displacement system salt-resistance is good, also have well including the heavy crude reservoir to the water flooding containing high calcium and magnesium ion
Adaptability.
All documents recited in the present invention, their full content are incorporated herein by reference, and if these are literary
When offering expressed meaning and the inconsistent present invention, it is subject to statement of the invention.In addition, the various terms that use of the present invention and
Phrase is with well known to a person skilled in the art general senses.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.However, the scope of the present invention is not limited to following realities
Apply example.One of skill in the art, can be to the present invention it is understood that under the premise of without departing substantially from the spirit and scope of the present invention
Carry out various change and modification.
Instrument involved in following embodiments, reagent, material etc. are unless otherwise noted existing in the prior art
Conventional instrument, reagent, material etc., can be obtained by regular commercial sources.Experimental method involved in following embodiments, inspection
Survey method etc. is unless otherwise noted existing routine experiment method in the prior art, detection method etc..
Embodiment viscosity reduction oil displacement agent and its application
By nonionic surfactant, cationic oligo surfactant, C1~C6Small organic molecule alcohol and water press one
Certainty ratio mixing, is configured to viscosity reduction oil displacement agent.
Viscosity reduction oil displacement agent, polymer and water are mixed in a certain ratio, are configured to viscosity reduction oil displacement agent-polymeric system, i.e.,
Displacing fluid in oil displacement test.
(the single-stranded surfactant of cationic substitutes cationic oligo surfactant, no for each embodiment and comparative example
Add cationic oligo surfactant or C1~C6Small organic molecule alcohol, or both do not add) in viscosity reduction oil displacement agent group
At be shown in Table 1 (wherein, R is straight chained alkyl), displacing fluid proportion be shown in Table 2.
In order to test the salt-resistance of viscosity reduction oil displacement agent and displacing fluid, in embodiment 2 and embodiment 4 prepared by viscosity reduction oil displacement agent
Wet concentration in journey selects mineralized water, salinity 100000mg/L, wherein Ca2+Concentration: 5000mg/L, Mg2+Concentration: 5000mg/L；
And the wet concentration in other embodiments and comparative example preparation process selects deionized water, salinity 0mg/L, wherein Ca2+Concentration: 0mg/
L, Mg2+Concentration: 0mg/L.
The composition of viscosity reduction oil displacement agent in 1 embodiment of table and comparative example
Infuse *: the wet concentration in embodiment 2 and 4 in viscosity reduction oil displacement agent preparation process selects mineralized water, salinity 100000mg/
L, wherein Ca2+Concentration: 5000mg/L, Mg2+Concentration: 5000mg/L.
The proportion of displacing fluid in 2 embodiment of table and comparative example
Test oil be Shengli Oil Field viscous crude S, use Haake VT550 rotational viscometer measure its 90 DEG C of viscosity for
452mPa·s。
Oil displacement test step are as follows:
(1) by artificial core, drying to constant weight, measures rock core size and gas permeability.With water saturation rock core, it is measured
Pore volume.With Shengli Oil Field viscous crude S saturated core, record saturation crude oil volume.
(2) at a temperature of 90 DEG C, displacement of reservoir oil by filling water to Produced Liquid it is aqueous > 99%, i.e., the viscous crude being detained in hole can not displace
Until, injection prepared displacing fluid 0.5PV, again displacement of reservoir oil by filling water to Produced Liquid it is aqueous > 99%, calculate on the basis of water drive
Improve the percentage of recovery ratio.Permeability detector measurement of the rock core gas permeability using the production of Dong great Shi instrument company, the displacement of reservoir oil
Test is carried out using the imitation oil displacement experiment evaluating apparatus of Dong great Shi instrument company production.Embodiment and comparative example test result are shown in Table 3, by
Table 3 can effectively improve 18.2%~23.5% recovery ratio it is found that displacing fluid of the invention, hence it is evident that (only better than comparative example
6.3%~12.4%) also, and to the heavy crude reservoir of the water flooding containing high calcium and magnesium ion there is good adaptability.
3 embodiment of table and comparative example oil displacement test result
Above-described embodiment is provided to those skilled in the art, how to implement and use to be advocated with full disclosure and description
Embodiment, rather than for limiting range disclosed herein.Obvious modification will to those skilled in the art
Within the scope of the appended claims.
Claims (10)
1. a kind of viscosity reduction oil displacement agent suitable for heavy crude reservoir, it is characterised in that: low by nonionic surfactant, cationic
Poly- surfactant, C1~C6Small organic molecule alcohol and water composition, wherein nonionic surfactant accounts for 15%~50%, sun
Ionic oligomerization surfactant accounts for 2%~10%, and small organic molecule alcohol accounts for 5%~10%, and surplus is water, by weight；
The nonionic surface active agent is selected from alkylphenol-polyethenoxy base ether and/or alkylol polyoxyethylene base ether；
The cationic oligo surfactant is selected from one or more of compound A, compound B, compound C；
The compound A, compound B, compound C structural formula respectively as shown in (a) (b) (c) in formula (I)；In formula (I), R is
C4~C18Alkyl, preferably C8~C16Alkyl；X is selected from F-、Cl-、Br-、I-One or more of.
(a)
(b)
(c)
2. the viscosity reduction oil displacement agent according to claim 1 suitable for heavy crude reservoir, it is characterised in that: the alkyl phenol polyoxy
The degree of polymerization of vinyl ethers and/or alkylol polyoxyethylene base ether is 3~30, and alkyl chain length is 6~20.
3. the viscosity reduction oil displacement agent according to claim 2 suitable for heavy crude reservoir, it is characterised in that: the alkyl phenol polyoxy
Vinyl ethers is selected from nonylphenol polyoxyethylene ether series NP-7, NP-10, NP-15；The alkylol polyoxyethylene base ether is selected from rouge
Fat alcohol polyoxyethylene ether series A EO-7, AEO-9, AEO-13.
4. the viscosity reduction oil displacement agent according to claim 1 suitable for heavy crude reservoir, it is characterised in that: the C1~C6Have
Machine small molecular alcohol is selected from one or more of methanol, ethyl alcohol, propyl alcohol, isopropanol.
5. the viscosity reduction oil displacement agent according to any one of claims 1 to 4 suitable for heavy crude reservoir, it is characterised in that: institute
Viscosity reduction oil displacement agent is stated to be one of the following:
1. composed of the following components: nonylphenol polyoxyethylene ether NP-10 accounts for 30%, and cationic oligo surfactant accounts for 8%,
Propyl alcohol accounts for 5%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (a) in formula (I) is shown, R C12
Alkyl, X Br-；
2. composed of the following components: nonylphenol polyoxyethylene ether NP-7 accounts for 40%, and cationic oligo surfactant accounts for 5%,
Isopropanol accounts for 10%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (b) in formula (I) is shown, and R is
C14Alkyl, X Br-；
3. composed of the following components: fatty alcohol polyoxyethylene ether AEO-9 accounts for 40%, and cationic oligo surfactant accounts for 2%,
Methanol accounts for 7%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (c) in formula (I) is shown, R C10
Alkyl, X Br-；
4. composed of the following components: fatty alcohol polyoxyethylene ether AEO-13 accounts for 30%, and cationic oligo surfactant accounts for
10%, ethyl alcohol accounts for 8%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (a) in formula (I) is shown, R
For C8Alkyl, X Cl-；
5. composed of the following components: nonylphenol polyoxyethylene ether NP-10 accounts for 15%, and cationic oligo surfactant accounts for 8%,
Propyl alcohol accounts for 5%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (a) in formula (I) is shown, R C12
Alkyl, X Br-；
6. composed of the following components: fatty alcohol polyoxyethylene ether AEO-9 accounts for 50%, and cationic oligo surfactant accounts for 2%,
Methanol accounts for 2%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (c) in formula (I) is shown, R C10
Alkyl, X Br-；
7. composed of the following components: nonylphenol polyoxyethylene ether NP-10 accounts for 30%, and cationic oligo surfactant accounts for 8%,
Propyl alcohol accounts for 5%, and surplus is water；Wherein, the structural formula of cationic oligo surfactant such as (a) in formula (I) is shown, R C18
Alkyl, X F-。
6. the viscosity reduction oil displacement agent according to any one of claims 1 to 5 suitable for heavy crude reservoir is improving adopting for heavy crude reservoir
Application in yield.
7. a kind of viscosity reduction oil displacement agent-polymeric system suitable for heavy crude reservoir, it is characterised in that: by appointing in Claims 1 to 5
Suitable for the viscosity reduction oil displacement agent of heavy crude reservoir, polymer and water composition described in one, wherein viscosity reduction oil displacement agent accounts for 0.1%~
1%, polymer accounts for 0.05%~0.3%, and surplus is water, by weight；The polymer be molecular weight ranges 8,000,000~
20000000 polyacrylamide.
8. viscosity reduction oil displacement agent-polymeric system according to claim 7 suitable for heavy crude reservoir, it is characterised in that: institute
It states viscosity reduction oil displacement agent and accounts for 0.5%, the polymer accounts for 0.2%.
9. viscosity reduction oil displacement agent-polymeric system according to claim 7 suitable for heavy crude reservoir, it is characterised in that: institute
Stating polymer is the polyacrylamide that molecular weight is 15,000,000~20,000,000.
10. viscosity reduction oil displacement agent-polymeric acceptor described in any one of claim 7~9 suitable for heavy crude reservoir ties up to raising
Application in the recovery ratio of heavy crude reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098384.XA CN109135709B (en) | 2018-09-19 | 2018-09-19 | Viscosity-reducing oil displacement agent and oil displacement system suitable for heavy oil reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098384.XA CN109135709B (en) | 2018-09-19 | 2018-09-19 | Viscosity-reducing oil displacement agent and oil displacement system suitable for heavy oil reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109135709A true CN109135709A (en) | 2019-01-04 |
| CN109135709B CN109135709B (en) | 2020-10-13 |
Family
ID=64815176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811098384.XA Active CN109135709B (en) | 2018-09-19 | 2018-09-19 | Viscosity-reducing oil displacement agent and oil displacement system suitable for heavy oil reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109135709B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055045A (en) * | 2019-04-26 | 2019-07-26 | 中国石油化工股份有限公司 | A kind of low poly-cationic quaternary surfactant Synergistic type oil displacement agent |
| CN110129020A (en) * | 2019-04-26 | 2019-08-16 | 中国石油化工股份有限公司 | Viscoelastic surfactant system and its application in the exploitation of water drive heavy crude reservoir |
| CN111088017A (en) * | 2020-01-03 | 2020-05-01 | 中国石油化工股份有限公司 | Multi-effect oil displacement system based on oligomerization agent and application thereof |
| CN112694878A (en) * | 2019-10-22 | 2021-04-23 | 中国石油化工股份有限公司 | Ester-group-containing polyether cationic surfactant composition and preparation and application thereof |
| CN112708409A (en) * | 2019-10-25 | 2021-04-27 | 中国石油化工股份有限公司 | Composition containing amido polyether cationic surfactant and preparation and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528853A (en) * | 2003-10-09 | 2004-09-15 | 西南石油学院 | Cationic Gemini Surfactants as Oil Displacing Agents |
| US20040221989A1 (en) * | 2001-02-13 | 2004-11-11 | Jian Zhou | Aqueous viscoelastic fluid |
| CN101323662A (en) * | 2008-07-24 | 2008-12-17 | 绍兴文理学院 | Biodegradable hyperbranched aliphatic polyamide and preparation method thereof |
| CN102942493A (en) * | 2012-11-09 | 2013-02-27 | 西南石油大学 | Terquaternary cation surface active agent and preparation method |
| WO2014066708A1 (en) * | 2012-10-25 | 2014-05-01 | Schlumberger Canada Limited | Methods of activating enzyme breakers |
| CN105694831A (en) * | 2016-03-17 | 2016-06-22 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant and salt-resistant viscosity reducer and preparation method and application thereof |
-
2018
- 2018-09-19 CN CN201811098384.XA patent/CN109135709B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040221989A1 (en) * | 2001-02-13 | 2004-11-11 | Jian Zhou | Aqueous viscoelastic fluid |
| CN1528853A (en) * | 2003-10-09 | 2004-09-15 | 西南石油学院 | Cationic Gemini Surfactants as Oil Displacing Agents |
| CN101323662A (en) * | 2008-07-24 | 2008-12-17 | 绍兴文理学院 | Biodegradable hyperbranched aliphatic polyamide and preparation method thereof |
| WO2014066708A1 (en) * | 2012-10-25 | 2014-05-01 | Schlumberger Canada Limited | Methods of activating enzyme breakers |
| CN102942493A (en) * | 2012-11-09 | 2013-02-27 | 西南石油大学 | Terquaternary cation surface active agent and preparation method |
| CN105694831A (en) * | 2016-03-17 | 2016-06-22 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant and salt-resistant viscosity reducer and preparation method and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| DONGQING XU: "Preparation, Characterization and Properties of Novel Cationic Gemini Surfactants with Rigid Amido Spacer Groups", 《J.SURFACTANTS DETERG》 * |
| 石 静: "新型耐温抗盐稠油乳化降黏剂的性能研究", 《石油化工应用》 * |
| 石静: "具有乳化降粘功能的新型稠油驱油剂的性能研究", 《中国化学会第十六届胶体与界面化学会议论文摘要集》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055045A (en) * | 2019-04-26 | 2019-07-26 | 中国石油化工股份有限公司 | A kind of low poly-cationic quaternary surfactant Synergistic type oil displacement agent |
| CN110129020A (en) * | 2019-04-26 | 2019-08-16 | 中国石油化工股份有限公司 | Viscoelastic surfactant system and its application in the exploitation of water drive heavy crude reservoir |
| CN110129020B (en) * | 2019-04-26 | 2021-09-28 | 中国石油化工股份有限公司 | Viscoelastic surfactant system and application thereof in exploitation of water-drive heavy oil reservoir |
| CN112694878A (en) * | 2019-10-22 | 2021-04-23 | 中国石油化工股份有限公司 | Ester-group-containing polyether cationic surfactant composition and preparation and application thereof |
| CN112708409A (en) * | 2019-10-25 | 2021-04-27 | 中国石油化工股份有限公司 | Composition containing amido polyether cationic surfactant and preparation and application thereof |
| CN111088017A (en) * | 2020-01-03 | 2020-05-01 | 中国石油化工股份有限公司 | Multi-effect oil displacement system based on oligomerization agent and application thereof |
| CN111088017B (en) * | 2020-01-03 | 2022-01-11 | 中国石油化工股份有限公司 | Multi-effect oil displacement system based on oligomerization agent and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109135709B (en) | 2020-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109135709A (en) | A kind of viscosity reduction oil displacement agent and oil displacement system suitable for heavy crude reservoir | |
| US8973668B2 (en) | Compositions for oil recovery and methods of their use | |
| CN102952531B (en) | Surfactant for displacing oil of offshore oilfield and preparation method thereof | |
| CN109812249B (en) | Oil reservoir oil displacement method | |
| CN103422840B (en) | Use the flooding method of anions and canons complexed surfactant | |
| CN113292978B (en) | Amphoteric two-dimensional nanosheet and preparation method and application thereof | |
| Sharma et al. | Surfactant-less alkali-cosolvent-polymer floods for an acidic crude oil | |
| EP2738237B1 (en) | Amphiphilic macromolecule and use thereof | |
| US10189790B1 (en) | Imidazoline compound, mobility control system, plugging agent for gas channeling, and method for carbon dioxide flooding | |
| CN107365575A (en) | A kind of viscosity reduction oil displacement agent and oil displacement system suitable for heavy crude reservoir | |
| EP2738191B1 (en) | Amphiphilic macromolecule and use | |
| CN111394084B (en) | Oil displacement agent and preparation and application thereof | |
| CN105331348A (en) | Homogeneous-phase microemulsion oil-displacing agent applied to low-permeation oil field and preparation method of homogeneous-phase microemulsion oil-displacing agent | |
| CN110144203A (en) | A kind of long-acting foam and preparation method thereof of low foam stabilizer dosage | |
| CN101974321B (en) | Micellar oil displacement agent with reservoir adaptability | |
| CN101502771B (en) | Fluorocarbon gemini surfactant as well as preparation method and application thereof | |
| CN104818008B (en) | The vesica oil displacement agent and application that a kind of anion surfactant compound system is formed | |
| CN104109520B (en) | Foaming agent suitable for high-temperature and high-salinity oil reservoir and preparation method thereof | |
| CN105368430A (en) | Oil-displacing agent, preparing method of oil-displacing agent and intensified oil production method | |
| CN111440604B (en) | Self-demulsification type salt-resistant heavy oil cold recovery oil-displacing agent and preparation method and application thereof | |
| CN104559985B (en) | The displacement of reservoir oil is applied in poly- table pack object and its tertiary oil recovery | |
| CN103773348B (en) | Poly-table binary composite oil displacement agent and flooding method | |
| CN110055045B (en) | Oligomeric cationic quaternary ammonium salt surfactant synergistic oil displacement agent | |
| CN112980420A (en) | Blood pressure reducing and injection increasing agent and preparation method thereof | |
| CN116023922B (en) | Surfactant composition, thick oil displacement agent, preparation method and application thereof, and method for improving thick oil recovery rate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |