CN106318362B - A kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof - Google Patents
A kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof Download PDFInfo
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- CN106318362B CN106318362B CN201510332239.3A CN201510332239A CN106318362B CN 106318362 B CN106318362 B CN 106318362B CN 201510332239 A CN201510332239 A CN 201510332239A CN 106318362 B CN106318362 B CN 106318362B
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- benzene sulfonate
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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
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Abstract
The present invention provides a kind of novel displacement of reservoir oil carbon dioxide foaming agent and preparation method thereof.The displacement of reservoir oil is made of with carbon dioxide foaming agent the raw material of following weight: sodium alkyl benzene sulfonate 20-70, cocinic acid diethanol amine 10-50, hydroxypropyl sulfobetaines 10-50, water 10-60.The preparation method carries out as follows: a. takes sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaines to be added in reaction kettle, and control mixing speed is 60-300 revs/min, and the 50-60% of total Water is added, and stirs 20-60 minutes;B. cocinic acid diethanol amine is added into reaction kettle, heating stirring is stirred 10-30 minutes controlled at 50-100 DEG C;C. remaining water is added in reaction kettle, continues stirring 30-60 minutes, obtains product.Foamability is strong, and stability is good, acts charitably with high salinity, high contents of calcium and magnesium stratum compatible, does not form muddy or precipitating, forms stable foam with carbon dioxide, can be applied to high temperature and high salt oil deposit foam flooding, improves oil recovery factor.
Description
Technical field:
The present invention relates to tertiary oil recovery in oil development and carbon dioxide drive technical field, especially a kind of displacement of reservoir oil is with two
Carbonoxide foaming agent;The invention further relates to the displacement of reservoir oil preparation methods of carbon dioxide foaming agent.
Background technique:
Newly-increased oil in-place (especially onshore oil field) difficulty of many countries is increasing in the world at present, and potentiality are got over
Come smaller.The supplement of crude oil recoverable reserves is increasingly dependent on and improves opening for the recovery ratio of mining-employed reserves and difficult-to-produce reserves
Hair.In China, it has been found that oil field largely belong to continental reservoir, serious heterogeneity, viscosity of crude is big, leads to moisture content
Rise comparatively fast, waterflood recovery efficiency factor is lower, and the average recovery ratio for having put into the oil field of exploitation at present is 32%, and U.S. oilfield is averaged
Recovery ratio is 33% or so.And CO2It is 10~30% that recovery ratio, which averagely can be improved, in drive.
CO2It drives due to the advantages such as big with use scope, oil displacement efficiency is high, cost is relatively low, by more and more national
Pay attention to.It is with a wide range of applications, there is more obvious technical advantage than water drive.The envelope technology of altering of production process is to restrict
The key problem of carbon dioxide oil recovery success carries out envelope using carbon dioxide foaming and alters and the displacement of reservoir oil is all significant.?
High temperature and high salt oil deposit, low-permeability oil deposit and heavy crude reservoir improve tar productivity etc. and have a good application prospect.
A text, foaming agent used in " foam is to carbon dioxide flooding fluidity control " in July nineteen ninety " oilfield chemistry " periodical
For CH3(CH2)11-14-(OCH2CH2)12-OCH2CH(OH)CH2-SO3Na。
The a text, " oil field Cao She CO in September, 2007 " oilfield chemistry " periodicals2The selection of foam flooding foaming agent " used in bubble
Foam agent is cationic quaternary ammonium salt surfactant.
Above 2 kinds of foaming agents are different from structure of the invention type, and the sealing characteristics of the above foaming agent and phase of the present invention
Difference is larger.
Summary of the invention:
An object of the present invention is to provide that a kind of foamability is strong, and stability is good, with high salinity, high contents of calcium and magnesium water flooding
Compatibility is acted charitably, and does not form muddy or precipitating novel displacement of reservoir oil carbon dioxide foaming agent;The second purpose is preparation method
An object of the present invention can be achieved by the following technical measures:
The novel displacement of reservoir oil is made of with carbon dioxide foaming agent the raw material of following weight:
An object of the present invention can be also achieved by the following technical measures:
Further, the sodium alkyl benzene sulfonate is 40-50 parts by weight.
Further, the cocinic acid diethanol amine is 30-40 parts by weight.
Further, the hydroxypropyl sulfobetaines is 20-30 parts by weight.
Further, the sodium alkyl benzene sulfonate refers to that carbon chain lengths are 12 to 16 sodium alkyl benzene sulfonate.
Further, the sodium alkyl benzene sulfonate refers to that carbon chain lengths are 14 to 15 sodium alkyl benzene sulfonate.
Further, the hydroxypropyl sulfobetaines refers to that carbon chain lengths are 14 to 16 hydroxypropyl sulfobetaines,
Carbon chain lengths directly affect the interfacial tension agent foaming properties of foaming agent.
Further, the hydroxypropyl sulfobetaines refers to that carbon chain lengths are 14 to 15 hydroxypropyl sulfobetaines
Alkali, carbon chain lengths directly affect the interfacial tension agent foaming properties of foaming agent.
The second object of the present invention can be achieved by the following technical measures:
The novel displacement of reservoir oil recited above is carried out as follows with the preparation method of carbon dioxide foaming agent:
A. sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaines is taken to be added in reaction kettle, control mixing speed is 60-300
Rev/min, the 50-60% of total Water is added, stirs 20-60 minutes;
B. cocinic acid diethanol amine is added into reaction kettle, heating stirring stirs 10- controlled at 50-100 DEG C
30 minutes;
C. remaining water is added in reaction kettle, continues stirring 30-60 minutes, obtains product.
The present invention relates to tertiary oil recovery in oil development and the less fields of carbon dioxide drive, and it is not high to be suitable for reservoir temperature
In 150 DEG C, salinity is lower than 80000mg/L, and calcium ions and magnesium ions concentration is lower than 1000mg/L, and crude oil oil reservoir viscosity is lower than
100mPa.s, Reservoir Permeability range are 0.5 × 10-3μm2~5000 × 10-3μm2。
Reaction kettle is added in alkylbenzene sulfonate and hydroxypropyl sulfobetaines by the present invention, by stirring, adds coconut
Oleic acid diethanol amine, and heat, stir, in order to which the intersolubility for increasing a raw material finally fills up water, continues stirring to filling
Divide and mixes.
The novel displacement of reservoir oil of the invention is strong with carbon dioxide foaming agent foamability, and stability is good, with high salinity, high contents of calcium and magnesium
Stratum compatible is acted charitably, and is not formed muddy or precipitating, is formed stable foam with carbon dioxide, can be applied to high temperature and high salt oil deposit
Foam flooding improves oil recovery factor.
The invention has the advantages that the present invention is applied to foam compound system laboratory test, foaming volume (Roche method)
Greater than 300mL, half-life period is greater than 20min, the concentrated water with salinity 20000mg/L, calcium and magnesium ion concentration 100mg/L
Compatibility is good, and foaming properties are unaffected, and foam flooding improves recovery ratio 10% after carbon dioxide mixed phase drives.
Specific embodiment
The present invention relates to tertiary oil recovery in oil development and the less fields of carbon dioxide drive, and it is not high to be suitable for reservoir temperature
In 150 DEG C, salinity is lower than 80000mg/L, and calcium ions and magnesium ions concentration is lower than 1000mg/L, and crude oil oil reservoir viscosity is lower than
100mPa.s, Reservoir Permeability range are 0.5 × 10-3μm2~5000 × 10-3μm2。
Embodiment 1:
The novel displacement of reservoir oil is carried out as follows with the preparation method of carbon dioxide foaming agent:
A. 70 kilograms of the sodium alkyl benzene sulfonate that carbon chain lengths are 12 and the hydroxypropyl sulfobetaines that carbon chain lengths are 16 are taken
In 10 kilograms of addition reaction kettles, control mixing speed is 300 revs/min, and the 50% of total Water is added, and is stirred 60 minutes;
B. 10 kilograms of cocinic acid diethanol amine are added into reaction kettle, heating stirring stirs 30 controlled at 50 DEG C
Minute;
C. remaining water is added in reaction kettle, continues stirring 30 minutes, obtains product.
Embodiment 2:
The novel displacement of reservoir oil is carried out as follows with the preparation method of carbon dioxide foaming agent:
A. 20 kilograms of the sodium alkyl benzene sulfonate that carbon chain lengths are 12 and the hydroxypropyl sulfobetaines that carbon chain lengths are 16 are taken
In 50 kilograms of addition reaction kettles, control mixing speed is 60 revs/min, and the 60% of total Water is added, and is stirred 20 minutes;
B. 50 kilograms of cocinic acid diethanol amine are added into reaction kettle, heating stirring is stirred controlled at 100 DEG C
10 minutes;
C. remaining water is added in reaction kettle, continues stirring 60 minutes, obtains product.
Embodiment 3:
The novel displacement of reservoir oil is carried out as follows with the preparation method of carbon dioxide foaming agent:
A. 40 kilograms of the sodium alkyl benzene sulfonate that carbon chain lengths are 12 and the hydroxypropyl sulfobetaines that carbon chain lengths are 16 are taken
In 20 kilograms of addition reaction kettles, control mixing speed is 150 revs/min, and the 53% of total Water is added, and is stirred 35 minutes;
B. 40 kilograms of cocinic acid diethanol amine are added into reaction kettle, heating stirring stirs 15 controlled at 70 DEG C
Minute;
C. remaining water is added in reaction kettle, continues stirring 40 minutes, obtains product.
Embodiment 4:
The novel displacement of reservoir oil is carried out as follows with the preparation method of carbon dioxide foaming agent:
A. 50 kilograms of the sodium alkyl benzene sulfonate that carbon chain lengths are 12 and the hydroxypropyl sulfobetaines that carbon chain lengths are 16 are taken
In 30 kilograms of addition reaction kettles, control mixing speed is 1700 revs/min, and the 56% of total Water is added, and is stirred 45 minutes;
B. 30 kilograms of cocinic acid diethanol amine are added into reaction kettle, heating stirring stirs 20 controlled at 80 DEG C
Minute;
C. remaining water is added in reaction kettle, continues stirring 50 minutes, obtains product.
Embodiment 5:
The sodium alkyl benzene sulfonate for being 13 with carbon chain lengths substitutes the sodium alkyl benzene sulfonate that carbon chain lengths are 12, other same respectively
Embodiment 1-4.
Embodiment 6:
The sodium alkyl benzene sulfonate for being 14 with carbon chain lengths substitutes the sodium alkyl benzene sulfonate that carbon chain lengths are 12, other same respectively
Embodiment 1-4.
Embodiment 7:
The sodium alkyl benzene sulfonate for being 15 with carbon chain lengths substitutes the sodium alkyl benzene sulfonate that carbon chain lengths are 12, other same respectively
Embodiment 1-4.
Embodiment 8:
The sodium alkyl benzene sulfonate for being 16 with carbon chain lengths substitutes the sodium alkyl benzene sulfonate that carbon chain lengths are 12, other same respectively
Embodiment 1-4.
Embodiment 9:
The hydroxypropyl sulfobetaines for being 14 with carbon chain lengths substitutes the hydroxypropyl sulfobetaines that carbon chain lengths are 16,
It is respectively the same as embodiment 1-8.
Embodiment 10:
The hydroxypropyl sulfobetaines for being 15 with carbon chain lengths substitutes the hydroxypropyl sulfobetaines that carbon chain lengths are 16,
It is respectively the same as embodiment 1-8.
Claims (1)
1. a kind of novel displacement of reservoir oil carbon dioxide foaming agent, it is characterised in that it by following weight raw material and method system
At:
Sodium alkyl benzene sulfonate 40-50
Cocinic acid diethanol amine 30-40
Hydroxypropyl sulfobetaines 20-30
Water 10-60;
The sodium alkyl benzene sulfonate refers to that carbon chain lengths are 14 to 15 sodium alkyl benzene sulfonate;The hydroxypropyl sulfobetaines
Alkali carbon chain lengths are 14 to 15;
That sodium alkyl benzene sulfonate and hydroxypropyl sulfobetaines is first taken to be added in reaction kettle, control mixing speed be 60-300 turn/
Point, the 50-60% of total Water is added, stirs 20-60 minutes, cocinic acid diethanol amine, heating are then added into reaction kettle
Stirring is stirred 10-30 minutes controlled at 50-100 DEG C, then remaining water is added in reaction kettle, continues to stir 30-60 points
Made of clock.
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CN111058816B (en) * | 2020-01-03 | 2022-02-22 | 中国石油化工股份有限公司 | Improve CO2Miscible-phase flooding recovery method |
CN115404068B (en) * | 2022-09-13 | 2023-03-28 | 大庆信辰油田技术服务有限公司 | Foaming agent for carbon dioxide flooding 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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CN103649459A (en) * | 2011-05-13 | 2014-03-19 | 罗地亚管理公司 | Enhanced foam stability applications and methods |
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US10259987B2 (en) * | 2011-12-21 | 2019-04-16 | Rhodia Operations | Amine adducts, derivatives thereof, methods for making such adducts and derivatives, and methods for using such adducts and derivatives |
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CN101705083B (en) * | 2009-11-16 | 2013-01-02 | 山东德仕化工集团有限公司 | Formulation of surfactant oil displacement system for anionic and nonionic oil displacement |
CN103649459A (en) * | 2011-05-13 | 2014-03-19 | 罗地亚管理公司 | Enhanced foam stability applications and methods |
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