CN106318362A - Novel carbon dioxide foaming agent for oil displacement and preparation method thereof - Google Patents
Novel carbon dioxide foaming agent for oil displacement and preparation method thereof Download PDFInfo
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- CN106318362A CN106318362A CN201510332239.3A CN201510332239A CN106318362A CN 106318362 A CN106318362 A CN 106318362A CN 201510332239 A CN201510332239 A CN 201510332239A CN 106318362 A CN106318362 A CN 106318362A
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- carbon dioxide
- foaming agent
- dioxide foaming
- reservoir oil
- stirring
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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
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
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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
Abstract
The invention provides a novel carbon dioxide foaming agent for oil displacement and a preparation method thereof. The novel carbon dioxide foaming agent for oil displacement is composed of the following raw materials in parts by weight: 20-70 parts of sodium alkyl benzene sulfonate, 10-50 parts of coconut oleic acid diethanolamine, 10-50 parts of hydroxypropyl sulfobetaine, and 10-60 parts of water. The preparation method comprises following steps: a, taking sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaine and adding into a reaction kettle, controlling the stirring speed to be 60-300 rpm, adding water with the amount 50-60% of the total water amount, and stirring for 20-60 minutes; b, adding coconut oleic acid diethanolamine to the reaction kettle, carrying out heating stirring, controlling the temperature to be 50-100 DEG C, and stirring for 10-30 minutes; and c, adding the remaining water into the reaction kettle, and continuing to stir for 30-60 minutes, to obtain the product. The novel carbon dioxide foaming agent for oil displacement has the advantages of strong foaming ability, good stability, and good compatibility with formation water having high mineralization degree and high calcium and magnesium content, does not form turbidity or precipitates, forms stable foams with carbon dioxide, can be applied in high-temperature and high-salinity oil reservoir foam oil displacement, and increases the raw oil recovery rate.
Description
Technical field:
The present invention relates to tertiary oil recovery and carbon dioxide drive technical field in oil development, especially a kind of displacement of reservoir oil dioxy
Change carbon foam；The invention still further relates to the preparation method of this displacement of reservoir oil carbon dioxide foaming agent.
Background technology:
Newly-increased oil in-place (especially onshore oil field) difficulty of the most a lot of countries is increasing, and potentiality are more
Come the least.Supplementing of crude oil recoverable reserves, is increasingly dependent on and improves the recovery ratio of mining-employed reserves and difficult-to-produce reserves
Exploitation.In China, it has been found that oil field major part belong to continental reservoir, serious heterogeneity, viscosity of crude is big, leads
Causing moisture content and rise very fast, waterflood recovery efficiency factor is relatively low, and the average recovery ratio in the oil field the most having put into exploitation is 32%, the U.S.
The average recovery ratio in oil field is about 33%.And CO2Drive that averagely can to improve recovery ratio be 10～30%.
CO2Drive owing to having the advantages such as range is big, oil displacement efficiency is high, cost is relatively low, by the weight of more and more national
Depending on.It is with a wide range of applications, than water drive, there is more obvious technical advantage.The envelope technology of altering of production process is restriction
The key problem of carbon dioxide oil recovery success, utilize carbon dioxide foaming to carry out envelope and alter and the displacement of reservoir oil is the most significant.
Improve tar productivity etc. at high temperature and high salt oil deposit, low-permeability oil deposit and heavy crude reservoir and there is good application prospect.
A literary composition, the foam used by " foam is to carbon dioxide flooding fluidity control " in July nineteen ninety " oilfield chemistry " periodical
Agent is CH3(CH2)11-14-(OCH2CH2)12-OCH2CH(OH)CH2-SO3Na。
A literary composition, " Cao She oil field CO in JIUYUE, 2007 " oilfield chemistry " periodicals2The selection of foam flooding foaming agent " used
Foam be cationic quaternary ammonium salt surfactant.
Above 2 kinds of foams are all different from present configuration type, and the sealing characteristics of above foam differs with the present invention
Bigger.
Summary of the invention:
It is strong that an object of the present invention is to provide a kind of foamability, and good stability, with high salinity, high contents of calcium and magnesium formation water
Compatibility is acted charitably, and is formed without the novel displacement of reservoir oil carbon dioxide foaming agent of muddiness or precipitation；The two of purpose are its preparation methods
An object of the present invention can be achieved by the following technical measures:
This novel displacement of reservoir oil carbon dioxide foaming agent is made up of the raw material of following weight:
An object of the present invention realizes also by following technical measures:
Further, described sodium alkyl benzene sulfonate is 40-50 weight portion.
Further, described cocinic acid diethanolamine is 30-40 weight portion.
Further, described hydroxypropyl sulfobetaines is 20-30 weight portion.
Further, described sodium alkyl benzene sulfonate refers to the sodium alkyl benzene sulfonate that carbon chain lengths is 12 to 16.
Further, described sodium alkyl benzene sulfonate refers to the sodium alkyl benzene sulfonate that carbon chain lengths is 14 to 15.
Further, described hydroxypropyl sulfobetaines refers to the hydroxypropyl sulfobetaines that carbon chain lengths is 14 to 16,
Carbon chain lengths directly affects the interfacial tension agent foaming properties of foaming agent.
Further, described hydroxypropyl sulfobetaines refers to the hydroxypropyl sulfobetaines that carbon chain lengths is 14 to 15,
Carbon chain lengths directly affects the interfacial tension agent foaming properties of foaming agent.
The two of the purpose of the present invention can be achieved by the following technical measures:
The preparation method of novel displacement of reservoir oil carbon dioxide foaming agent recited above is carried out as follows:
A. take sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaines and add in reactor, control mixing speed be 60-300 turn/
Point, add the 50-60% of total Water, stir 20-60 minute；
B. adding cocinic acid diethanolamine in reactor, heat up stirring, controls temperature and is 50-100 DEG C, stirs 10-30
Minute；
C. residue water is added in reactor, continue stirring 30-60 minute, obtain product.
The present invention relates to tertiary oil recovery and the less field of carbon dioxide drive in oil development, it is adaptable to reservoir temperature is not higher than
150 DEG C, salinity is less than 80000mg/L, and calcium ions and magnesium ions concentration is less than 1000mg/L, and crude oil oil reservoir viscosity is less than
100mPa.s, Reservoir Permeability scope is 0.5 × 10-3μm2～5000 × 10-3μm2。
Alkylbenzenesulfonate and hydroxypropyl sulfobetaines are added reactor by the present invention, by stirring, add Oleum Cocois
Acid diethanolamine, and heat, stir in order to increase the intersolubility of a raw material, finally fill up water, continue stirring
To fully mixing.
The novel displacement of reservoir oil carbon dioxide foaming agent foamability of the present invention is strong, and good stability, with high salinity, high contents of calcium and magnesium
Formation water compatibility is acted charitably, and is formed without muddiness or precipitation, forms stable foam with carbon dioxide, can be applicable to high temperature and high salt
Oil reservoir foam flooding, improves oil recovery factor.
The invention has the beneficial effects as follows, the present invention is applied to foam compound system laboratory test, foaming volume (Roche method)
More than 300mL, the half-life is more than 20min, with salinity 20000mg/L, calcium, the high ore deposit of magnesium ion concentration 100mg/L
Change degree compatible is good, and foaming properties is unaffected, and carbon dioxide mixed phase drives rear foam flooding and improves recovery ratio 10%.
Detailed description of the invention
The present invention relates to tertiary oil recovery and the less field of carbon dioxide drive in oil development, it is adaptable to reservoir temperature is not higher than
150 DEG C, salinity is less than 80000mg/L, and calcium ions and magnesium ions concentration is less than 1000mg/L, and crude oil oil reservoir viscosity is less than
100mPa.s, Reservoir Permeability scope is 0.5 × 10-3μm2～5000 × 10-3μm2。
Embodiment 1:
The preparation method of this novel displacement of reservoir oil carbon dioxide foaming agent is carried out as follows:
A. the sodium alkyl benzene sulfonate 70 kilograms that carbon chain lengths is 12 and the hydroxypropyl sulfobetaines that carbon chain lengths is 16 are taken
In 10 kilograms of addition reactors, controlling mixing speed is 300 revs/min, adds the 50% of total Water, stirs 60 minutes；
B. adding cocinic acid diethanolamine 10 kilograms in reactor, heat up stirring, and controlling temperature is 50 DEG C, stirring
30 minutes；
C. residue water is added in reactor, continue stirring 30 minutes, obtain product.
Embodiment 2:
The preparation method of this novel displacement of reservoir oil carbon dioxide foaming agent is carried out as follows:
A. the sodium alkyl benzene sulfonate 20 kilograms that carbon chain lengths is 12 and the hydroxypropyl sulfobetaines that carbon chain lengths is 16 are taken
In 50 kilograms of addition reactors, controlling mixing speed is 60 revs/min, adds the 60% of total Water, stirs 20 minutes；
B. adding cocinic acid diethanolamine 50 kilograms in reactor, heat up stirring, and controlling temperature is 100 DEG C, stirring
10 minutes；
C. residue water is added in reactor, continue stirring 60 minutes, obtain product.
Embodiment 3:
The preparation method of this novel displacement of reservoir oil carbon dioxide foaming agent is carried out as follows:
A. the sodium alkyl benzene sulfonate 40 kilograms that carbon chain lengths is 12 and the hydroxypropyl sulfobetaines that carbon chain lengths is 16 are taken
In 20 kilograms of addition reactors, controlling mixing speed is 150 revs/min, adds the 53% of total Water, stirs 35 minutes；
B. adding cocinic acid diethanolamine 40 kilograms in reactor, heat up stirring, and controlling temperature is 70 DEG C, stirring
15 minutes；
C. residue water is added in reactor, continue stirring 40 minutes, obtain product.
Embodiment 4:
The preparation method of this novel displacement of reservoir oil carbon dioxide foaming agent is carried out as follows:
A. the sodium alkyl benzene sulfonate 50 kilograms that carbon chain lengths is 12 and the hydroxypropyl sulfobetaines that carbon chain lengths is 16 are taken
In 30 kilograms of addition reactors, controlling mixing speed is 1700 revs/min, adds the 56% of total Water, stirs 45 minutes；
B. adding cocinic acid diethanolamine 30 kilograms in reactor, heat up stirring, and controlling temperature is 80 DEG C, stirring
20 minutes；
C. residue water is added in reactor, continue stirring 50 minutes, obtain product.
Embodiment 5:
Substituting carbon chain lengths with the sodium alkyl benzene sulfonate that carbon chain lengths is 13 is the sodium alkyl benzene sulfonate of 12, and other is respectively with real
Execute example 1-4.
Embodiment 6:
Substituting carbon chain lengths with the sodium alkyl benzene sulfonate that carbon chain lengths is 14 is the sodium alkyl benzene sulfonate of 12, and other is respectively with real
Execute example 1-4.
Embodiment 7:
Substituting carbon chain lengths with the sodium alkyl benzene sulfonate that carbon chain lengths is 15 is the sodium alkyl benzene sulfonate of 12, and other is respectively with real
Execute example 1-4.
Embodiment 8:
Substituting carbon chain lengths with the sodium alkyl benzene sulfonate that carbon chain lengths is 16 is the sodium alkyl benzene sulfonate of 12, and other is respectively with real
Execute example 1-4.
Embodiment 9:
The hydroxypropyl sulfobetaines that carbon chain lengths is 16 is substituted with the hydroxypropyl sulfobetaines that carbon chain lengths is 14, other
Respectively with embodiment 1-8.
Embodiment 10:
The hydroxypropyl sulfobetaines that carbon chain lengths is 16 is substituted with the hydroxypropyl sulfobetaines that carbon chain lengths is 15, other
Respectively with embodiment 1-8.
Claims (9)
1. a novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that it is made up of the raw material of following weight:
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described benzene sulfonamide
Acid sodium is 40-50 weight portion.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described cocinic acid
Diethanolamine is 30-40 weight portion.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described hydroxypropyl sulphur
Base glycine betaine is 20-30 weight portion.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described benzene sulfonamide
Acid sodium refers to the sodium alkyl benzene sulfonate that carbon chain lengths is 12 to 16.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described benzene sulfonamide
Acid sodium refers to the sodium alkyl benzene sulfonate that carbon chain lengths is 14 to 15.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described hydroxypropyl sulphur
Base glycine betaine refers to the hydroxypropyl sulfobetaines that carbon chain lengths is 14 to 16.
One the most according to claim 1 novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that described hydroxypropyl sulphur
Base glycine betaine refers to the hydroxypropyl sulfobetaines that carbon chain lengths is 14 to 15.
9. the preparation method of the novel displacement of reservoir oil carbon dioxide foaming agent described in claim 1, it is characterised in that this preparation method is pressed
Following steps are carried out:
A. take sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaines add in reactor, control mixing speed and be 60-300 rev/min,
Add the 50-60% of total Water, stir 20-60 minute；
B. adding cocinic acid diethanolamine in reactor, heat up stirring, controls temperature and is 50-100 DEG C, and stirring 10-30 divides
Clock；
C. residue water is added in reactor, continue stirring 30-60 minute, obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332239.3A CN106318362B (en) | 2015-06-16 | 2015-06-16 | A kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332239.3A CN106318362B (en) | 2015-06-16 | 2015-06-16 | A kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof |
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| CN106318362A true CN106318362A (en) | 2017-01-11 |
| CN106318362B CN106318362B (en) | 2019-01-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058816A (en) * | 2020-01-03 | 2020-04-24 | 中国石油化工股份有限公司 | Improve CO2Miscible-phase flooding recovery method |
| CN115404068A (en) * | 2022-09-13 | 2022-11-29 | 大庆信辰油田技术服务有限公司 | Foaming agent for carbon dioxide flooding and preparation method thereof |
| CN116333713A (en) * | 2023-03-28 | 2023-06-27 | 陕西延长石油(集团)有限责任公司研究院 | Liquid carbon dioxide oil washing agent and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058816A (en) * | 2020-01-03 | 2020-04-24 | 中国石油化工股份有限公司 | Improve CO2Miscible-phase flooding recovery method |
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| CN116333713A (en) * | 2023-03-28 | 2023-06-27 | 陕西延长石油(集团)有限责任公司研究院 | Liquid carbon dioxide oil washing agent and preparation method thereof |
| CN116333713B (en) * | 2023-03-28 | 2024-04-02 | 陕西延长石油(集团)有限责任公司研究院 | Liquid carbon dioxide oil washing agent and preparation method thereof |
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| CN106318362B (en) | 2019-01-18 |
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