CN109825272A - Biological enzyme oil displacement agent suitable for crude oil acquisition - Google Patents
Biological enzyme oil displacement agent suitable for crude oil acquisition Download PDFInfo
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- CN109825272A CN109825272A CN201910282929.0A CN201910282929A CN109825272A CN 109825272 A CN109825272 A CN 109825272A CN 201910282929 A CN201910282929 A CN 201910282929A CN 109825272 A CN109825272 A CN 109825272A
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- biological enzyme
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- crude oil
- enzyme
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Abstract
The present invention relates to a kind of biological enzyme oil displacement agents suitable for crude oil acquisition, it include biological enzyme, polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt, biological enzyme includes protein complex enzyme NOYEES, biological active matter BIO-P and BIO-A, the weight fraction ratio of protein complex enzyme NOYEES in biological enzyme, biological active matter BIO-P and BIO-A are 1:6:3.Thus, it is possible to which it is wet as the conversion of water-wet direction from oil to make the wetability of oil reservoirs rock surface, and change the wetting state of reservoir rock, reduces the interfacial tension between oil rock, crude oil is enabled to be easy to strip down from rock surface.There is certain viscosity reduction effect, reduces flow resistance of the crude oil in formation pore.Under strata pressure effect, crude oil flows to pit shaft from surrounding, to play the effect that volume increase increases oil.
Description
Technical field
The present invention relates to a kind of oil displacement agent more particularly to a kind of biological enzyme oil displacement agents suitable for crude oil acquisition.
Background technique
At present during oil field development, primary oil recovery is crude oil by subsurface pressure, sprays ground certainly by oil well
Process, with the reduction of subsurface pressure, self-spray terminates, and primary oil recovery can produce underground 10-15% or so.Secondary oil recovery is to pass through
It is constantly filled the water toward underground, underground energy is supplemented, to realize the purpose of water drive oil.But with continuous water filling, contain in Produced Liquid
Water constantly rises, at present aqueous up to 92-95% in China's onshore oil field Produced Liquid.It is aqueous in Produced Liquid to reach by international standard
When to 97%, i.e., without any economic benefit.But secondary oil recovery can only produce 20% of underground crude oil or so.Therefore, petroleum work
Tertiary oil recovery, the i.e. chemical displacement of reservoir oil are generally carried out in industry.But existing oil displacement agent, ultralow interfacial tension is usually only pursued, is not focused on
Reservoir geologic character and crude oil property condition.
In view of the above shortcomings, the designer, is actively subject to research and innovation, it is a kind of suitable for crude oil acquisition to found
Biological enzyme oil displacement agent, make it with more the utility value in industry.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of biological enzyme displacement of reservoir oils suitable for crude oil acquisition
Agent.
The biological enzyme oil displacement agent for being suitable for crude oil acquisition of the invention, it is characterised in that: include biological enzyme, polyoxyethylene
Ether, alkyl glycosides and bi-quaternary ammonium salt, the biological enzyme include protein complex enzyme NOYEES, biological active matter BIO-P and BIO-
The weight fraction ratio of A, protein complex enzyme NOYEES in the biological enzyme, biological active matter BIO-P and BIO-A are 1:6:3.
Further, the above-mentioned biological enzyme oil displacement agent for being suitable for crude oil acquisition, wherein the biological enzyme, polyoxyethylene
The weight percent of ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 10% to 25%, polyoxyethylene ether 1% to 10%, alkyl
Glucosides 0.2% to 15%, bi-quaternary ammonium salt 0.2% to 15%, remaining is water surplus.
Further, the above-mentioned biological enzyme oil displacement agent for being suitable for crude oil acquisition, wherein the biological enzyme, polyoxy second
The weight percent of alkene ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 12%, polyoxyethylene ether 8%, alkyl glycosides 10%, double
Quaternary ammonium salt 10%, remaining is water surplus.
Further, the above-mentioned biological enzyme oil displacement agent for being suitable for crude oil acquisition, wherein the biological enzyme, polyoxy second
The weight percent of alkene ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 22%, polyoxyethylene ether 4%, alkyl glycosides 3%, double
Quaternary ammonium salt 3%, remaining is water surplus.
Still further, the above-mentioned biological enzyme oil displacement agent for being suitable for crude oil acquisition, wherein the biological enzyme, polyoxy second
The weight percent of alkene ether, alkyl glycosides and bi-quaternary ammonium salt be biological enzyme 10%, polyoxyethylene ether 1%, alkyl glycosides 0.5%,
Bi-quaternary ammonium salt 0.2%, remaining is water surplus.
According to the above aspect of the present invention, the present invention has at least the following advantages:
1, it is wet as the conversion of water-wet direction from oil that the wetability of oil reservoirs rock surface can be made, and change the profit of reservoir rock
Wet condition reduces the interfacial tension between oil rock, crude oil is enabled to be easy to strip down from rock surface.
2, there is certain viscosity reduction effect, reduce flow resistance of the crude oil in formation pore.Under strata pressure effect,
Crude oil flows to pit shaft from surrounding, to play the effect that volume increase increases oil.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, with presently preferred embodiments of the present invention, detailed description is as follows below.
Specific embodiment
With reference to embodiment, the embodiment of the present invention is furthur described in detail.Following embodiment is used for
Illustrate the present invention, but is not intended to limit the scope of the invention.
Suitable for the biological enzyme oil displacement agent of crude oil acquisition, unusual place is: including biological enzyme, polyoxyethylene
Ether, alkyl glycosides and bi-quaternary ammonium salt, biological enzyme include protein complex enzyme NOYEES, biological active matter BIO-P and BIO-A, life
The weight fraction ratio of protein complex enzyme NOYEES in object enzyme, biological active matter BIO-P and BIO-A are 1:6:3.
From the point of view of an of the invention preferable embodiment, biological enzyme that the present invention uses, polyoxyethylene ether, alkyl glycosides
With the weight percent of bi-quaternary ammonium salt be biological enzyme 10% to 25%, polyoxyethylene ether 1% to 10%, alkyl glycosides 0.2% to
15%, bi-quaternary ammonium salt 0.2% to 15%, remaining is water surplus.
From the point of view of actual implementation:
Embodiment one
The weight percent of the biological enzyme, polyoxyethylene ether, alkyl glycosides and the bi-quaternary ammonium salt that use is biological enzyme 12%, poly-
Ethylene oxide ether 8%, alkyl glycosides 10%, bi-quaternary ammonium salt 10%, remaining is water surplus.Said components are put in proportion into liquid pool
In, it is injected from injection pump by injection pipeline to stratum.
Embodiment two
Biological enzyme, polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt weight percent be biological enzyme 22%, polyoxyethylene
Ether 4%, alkyl glycosides 3%, bi-quaternary ammonium salt 3%, remaining is water surplus.Said components are put in proportion into liquid pool, by infusing
Enter pump and is injected by injection pipeline to stratum.
Embodiment three
The weight percent of the biological enzyme, polyoxyethylene ether, alkyl glycosides and the bi-quaternary ammonium salt that use is biological enzyme 10%, poly-
Ethylene oxide ether 1%, alkyl glycosides 0.5%, bi-quaternary ammonium salt 0.2%, remaining is water surplus.Said components are put in proportion into liquid
In slot, injected from injection pump by injection pipeline to stratum.
Working principle of the present invention is as follows:
It can adhere on the surfaces such as metal and rock, form one layer of bioactive molecule film, prevent paraffin deposit, the cured trichite of acetone
Raw catalytic action, changes cured crystalline form state, and cured brilliant further growth is prevented to prevent water from injuring to effectively prevent precipitating fouling
Effect effectively increases water injection capacity, reduces crude oil prop-carrying capacity, reduces the friction of fluid and sandstone, stablizes oil to reach
Structure is hidden, the purpose of oil recovery factor is improved.
It can be seen that after applying the present invention by above-mentioned character express, gather around and have the following advantages:
1, it is wet as the conversion of water-wet direction from oil that the wetability of oil reservoirs rock surface can be made, and change the profit of reservoir rock
Wet condition reduces the interfacial tension between oil rock, crude oil is enabled to be easy to strip down from rock surface.
2, there is certain viscosity reduction effect, reduce flow resistance of the crude oil in formation pore.Under strata pressure effect,
Crude oil flows to pit shaft from surrounding, to play the effect that volume increase increases oil.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. being suitable for the biological enzyme oil displacement agent of crude oil acquisition, it is characterised in that: include biological enzyme, polyoxyethylene ether, alkyl sugar
Glycosides and bi-quaternary ammonium salt, the biological enzyme include protein complex enzyme NOYEES, biological active matter BIO-P and BIO-A, the biology
The weight fraction ratio of protein complex enzyme NOYEES in enzyme, biological active matter BIO-P and BIO-A are 1:6:3.
2. the biological enzyme oil displacement agent according to claim 1 suitable for crude oil acquisition, it is characterised in that: the biological enzyme,
The weight percent of polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt be biological enzyme 10% to 25%, polyoxyethylene ether 1% to
10%, alkyl glycosides 0.2% to 15%, bi-quaternary ammonium salt 0.2% to 15%, remaining is water surplus.
3. the biological enzyme oil displacement agent according to claim 2 suitable for crude oil acquisition, it is characterised in that: the biological enzyme,
The weight percent of polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 12%, polyoxyethylene ether 8%, alkyl glycosides
10%, bi-quaternary ammonium salt 10%, remaining is water surplus.
4. the biological enzyme oil displacement agent according to claim 2 suitable for crude oil acquisition, it is characterised in that: the biological enzyme,
The weight percent of polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 22%, polyoxyethylene ether 4%, alkyl glycosides
3%, bi-quaternary ammonium salt 3%, remaining is water surplus.
5. the biological enzyme oil displacement agent according to claim 2 suitable for crude oil acquisition, it is characterised in that: the biological enzyme,
The weight percent of polyoxyethylene ether, alkyl glycosides and bi-quaternary ammonium salt is biological enzyme 10%, polyoxyethylene ether 1%, alkyl glycosides
0.5%, bi-quaternary ammonium salt 0.2%, remaining is water surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282929.0A CN109825272A (en) | 2019-04-10 | 2019-04-10 | Biological enzyme oil displacement agent suitable for crude oil acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282929.0A CN109825272A (en) | 2019-04-10 | 2019-04-10 | Biological enzyme oil displacement agent suitable for crude oil acquisition |
Publications (1)
| Publication Number | Publication Date |
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| CN109825272A true CN109825272A (en) | 2019-05-31 |
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| CN201910282929.0A Pending CN109825272A (en) | 2019-04-10 | 2019-04-10 | Biological enzyme oil displacement agent suitable for crude oil acquisition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113881420A (en) * | 2021-09-23 | 2022-01-04 | 北京恒聚化工集团有限责任公司 | Oil displacement agent and preparation method and application thereof |
| CN116355603A (en) * | 2023-03-21 | 2023-06-30 | 陕西延长石油（集团）有限责任公司 | Non-ultralow interfacial tension oil displacement agent for improving recovery ratio of low-permeability oil reservoir as well as preparation method and application thereof |
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| CN1710014A (en) * | 2005-06-30 | 2005-12-21 | 大庆沃太斯化工有限公司 | Biological enzyme oil-displacing agent for increasing crude oil production rate and its oil displacing method |
| CN102220117A (en) * | 2011-05-05 | 2011-10-19 | 陕西延长石油(集团)有限责任公司研究院 | Bioactivity oil displacement agent for improving recovery ratio in ultra-low permeability oilfields |
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|---|---|---|---|---|
| CN113881420A (en) * | 2021-09-23 | 2022-01-04 | 北京恒聚化工集团有限责任公司 | Oil displacement agent and preparation method and application thereof |
| CN113881420B (en) * | 2021-09-23 | 2022-11-22 | 北京恒聚化工集团有限责任公司 | Oil displacement agent and preparation method and application thereof |
| CN116355603A (en) * | 2023-03-21 | 2023-06-30 | 陕西延长石油（集团）有限责任公司 | Non-ultralow interfacial tension oil displacement agent for improving recovery ratio of low-permeability oil reservoir as well as preparation method and application thereof |
| CN116355603B (en) * | 2023-03-21 | 2024-04-16 | 陕西延长石油（集团）有限责任公司 | Non-ultralow interfacial tension oil displacement agent for improving recovery ratio of low-permeability oil reservoir as well as preparation method and application thereof |
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