CN107227148A - A kind of micro emulsion transfer drive system prepared by raw material of swill oil - Google Patents

A kind of micro emulsion transfer drive system prepared by raw material of swill oil Download PDF

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Publication number
CN107227148A
CN107227148A CN201710428858.1A CN201710428858A CN107227148A CN 107227148 A CN107227148 A CN 107227148A CN 201710428858 A CN201710428858 A CN 201710428858A CN 107227148 A CN107227148 A CN 107227148A
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China
Prior art keywords
oil
drive system
transfer drive
swill oil
raw material
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CN201710428858.1A
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Inventor
褚天舒
殷丹丹
赵东锋
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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Priority to CN201710428858.1A priority Critical patent/CN107227148A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/584Compositions 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60Compositions for stimulating production by acting on the underground formation
    • C09K8/602Compositions for stimulating production by acting on the underground formation containing surfactants
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/28Friction or drag reducing additives

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)

Abstract

The invention discloses a kind of micro emulsion transfer drive system prepared by raw material of swill oil, the raw material of the transfer drive system includes swill oil pretreatment fluid, and HLB value is less than 6 anionic, non-ionic or compound surfactant.Have the beneficial effect that:The raw material of the present invention can be designed through Over emulsfication formation WO emulsion, its drop size according to the pore-size of injection oil reservoir.The emulsion droplet size being typically designed out is more than pore throat size, and such emulsion can effectively block venturi, produce Jamin effect, subsequent fluid is occurred fluid diversion, and then expand swept volume.Simultaneously because being Water-In-Oil class emulsion, meet water and produce larger flow resistance, meeting oil, then flow resistance changes little, serves selective water plugging profile control effect of the water blockoff without blocking up oil, therefore the present invention is that profile control and water plugging that can be selective can realize the secondary transfer drive system utilized of swill oil again.

Description

A kind of micro emulsion transfer drive system prepared by raw material of swill oil
Technical field
The present invention relates to oil-gas mining field, specifically a kind of micro emulsion transfer drive body prepared by raw material of swill oil System.
Background technology
Swill oil is commonly called as gutter oil, is all kinds of poor oils produced in human lives, by high-temperature cooking, forms a variety of Carcinogen, it is impossible to eat again.But because it can neither eat, hesitate to discard.If it is converted into industrial available material, no It can only turn waste into wealth, be also prevented from it and flow back to catering trade again.
While waterflooding oil field, well water is a common problem, and injection fluid communication, which is one, to be needed to solve Problem.Water yield formation and production water direction are timely and accurately verified, takes profile control, water blockoff measure to be very important.Current oil field is normal Transfer drive system mainly has polymerization species, microballoon class, emulsion class, and various systems have the advantage of oneself, also have accordingly not Foot, further, since the limitation of economic benefit, it is desirable to which transfer drive system consumption is controlled in certain limit, causes transfer drive radius and effective Phase is limited.Had no in currently available technology is used for the related report for the profile control agent that oil field is produced about utilizing swill oil to prepare emulsion Road.
Prior art such as Authorization Notice No. is the B of CN 104277175 Chinese invention patent, discloses a kind of polyacrylamide Amine reverse micro emulsion transfer drive system, is under the effect of redox composite initiator, to be made by the aggregated reaction of reverse micro emulsion 's;Described reverse micro emulsion, with parts by weight, includes following component:1)10 ~ 70 parts of oil-based solvent;2)1 ~ 25 part Emulsifying agent;3)0.01 ~ 15 part of hydrophobic monomer;4)5 ~ 60 parts of acrylamides;5)1 ~ 40 part of water-soluble temperature-resistant anti-salt list Body;6)0.001 ~ 5 part of crosslinking agent;7)10 ~ 60 parts of water.Above-mentioned transfer drive system may expand in high temperature and high salinity salt solution, Stability is preferable, but the preparation cost of the adjustment and control system is higher, and water blockoff, deep profile controlling and Flooding Efficiency are undesirable, to crude oil Recovery ratio has much room for improvement.
The content of the invention
It is an object of the invention to provide a kind of selective shut-off for not blocking up oil with water blockoff, water plugging effect is good, can drop Low oil water interfacial tension, the microemulsion transfer drive system prepared by raw material of swill oil of the high advantage of oil displacement efficiency.
The present invention is directed to the problem of being mentioned in background technology, and the technical scheme taken is:One kind is using swill oil as raw material system Standby micro emulsion transfer drive system is that HLB value is less than the WO emulsion that 6 surfactant and swill oil are mixed to form.
A kind of preparation method of the micro emulsion transfer drive system prepared by raw material of swill oil comprises the following steps:It will locate in advance Swill oil after reason or the swill oil sold on the market are added in emulsifier solution, add active peptides, the ammonia of active peptides Base acid sequence is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing Water-In-Oil is prepared into ultrasonic homogenizer Type emulsion.Above-mentioned active peptides are respectively provided with good compatibility with swill oil and emulsifying agent, and active peptides are attached to swill oil With the water-in-oil emulsion molecular surface of emulsifying agent formation, the hydrophobicity of WO emulsion can be remarkably reinforced, oil bag is improved The water plugging property of water type emulsion.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion is put down Equal particle diameter is more than target reservoir pore throat mean radius, and emulsion can keep syneresis rate in 15 days to be less than at a temperature of target reservoir 20%, interfacial tension is less than 10-3mN/m.Mentioned emulsifier solution is the anionic, non-ionic or compound that HLB value is less than 6 Surfactant.Emulsifier solution is 6 with swill oil volume ratio:3~6:1.The content of emulsifying agent is 0.3%- in emulsifier solution 0.7%.The working frequency of ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.The pretreatment operation of swill oil For:The swill oil produced in life is collected, sedimentation filtration obtains the oil product that triglyceride content is higher than 80%.
The WO emulsion of swill oil formation in migration process, can reduce crude oil in rock wall in the earth formation Adhesion work, remaining oil is peeled off, and is run into after residual oil oil droplet, can be reduced oil water interfacial tension, be made oil droplet more yielding, Free remaining oil can be restarted, so as to increase oil displacement efficiency;The emulsion droplet of greater particle size runs into less venturi During radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and by In for WO emulsion, foreign minister is oil phase, and it is smaller to meet flow resistance change after oil, but meets flow resistance after water and become big, because This can realize that water blockoff does not block up the selective shut-off of oil.
Compared with prior art, the advantage of the invention is that:1)Using swill oil as raw material, can both reduce original collection into This, can realize the secondary utilization of swill oil again;2)Amino acid sequence is added in preparation process is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC active peptides, the WO emulsion prepared has water blockoff The selective shut-off of oil is not blocked up, and water plugging property is excellent, can be deep into oil-containing low infiltration layer, can also reduce oil-water interfaces Power, makes oil droplet more yielding, and free remaining oil can be restarted, the acquisition rate of crude oil and free crude oil to well deep part It is high.
Specific embodiment
The present invention program is described further below by embodiment:
Embodiment 1:
A kind of micro emulsion transfer drive system prepared by raw material of swill oil is surfactant and swill oil of the HLB value less than 6 The WO emulsion being mixed to form.
A kind of preparation method of the micro emulsion transfer drive system prepared by raw material of swill oil comprises the following steps:It will locate in advance Swill oil after reason or the swill oil sold on the market are added in emulsifier solution, add active peptides, the ammonia of active peptides Base acid sequence is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing Water-In-Oil is prepared into ultrasonic homogenizer Type emulsion.Above-mentioned active peptides are respectively provided with good compatibility with swill oil and emulsifying agent, and active peptides are attached to swill oil With the water-in-oil emulsion molecular surface of emulsifying agent formation, the hydrophobicity of WO emulsion can be remarkably reinforced, oil bag is improved The water plugging property of water type emulsion.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion is put down Equal particle diameter is more than target reservoir pore throat mean radius, and emulsion can keep syneresis rate in 15 days to be less than at a temperature of target reservoir 20%, interfacial tension is less than 10-3mN/m.Mentioned emulsifier solution is the anionic, non-ionic or compound that HLB value is less than 6 Surfactant.Emulsifier solution is 6 with swill oil volume ratio:3~6:1.The content of emulsifying agent is 0.3%- in emulsifier solution 0.7%.The working frequency of ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.The pretreatment operation of swill oil For:The swill oil produced in life is collected, sedimentation filtration obtains the oil product that triglyceride content is higher than 80%.
The WO emulsion of swill oil formation in migration process, can reduce crude oil in rock wall in the earth formation Adhesion work, remaining oil is peeled off, and is run into after residual oil oil droplet, can be reduced oil water interfacial tension, be made oil droplet more yielding, Free remaining oil can be restarted, so as to increase oil displacement efficiency;The emulsion droplet of greater particle size runs into less venturi During radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and by In for WO emulsion, foreign minister is oil phase, and it is smaller to meet flow resistance change after oil, but meets flow resistance after water and become big, because This can realize that water blockoff does not block up the selective shut-off of oil.
Embodiment 2:
Configuration quality fraction is 0.5% fatty acid sorbitan solution, by it by volume 7 with the swill oil sold on the market:3 Mixing, adds active peptides, the amino acid sequence of active peptides is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC. After mixing WO emulsion is prepared into ultrasonic homogenizer.Above-mentioned active peptides are respectively provided with good with swill oil and emulsifying agent Good compatibility, active peptides are attached to the water-in-oil emulsion molecular surface of swill oil and emulsifying agent formation, can be remarkably reinforced The hydrophobicity of WO emulsion, improves the water plugging property of WO emulsion.Size Distribution, stability to emulsion And interfacial tension is measured, it is desirable to which emulsion average grain diameter is more than target reservoir pore throat mean radius, and target reservoir temperature The lower emulsion of degree can keep syneresis rate in 15 days to be less than 20%, and interfacial tension is less than 10-3mN/m.The work frequency of ultrasonic homogenizer Rate is 3kHZ, and the working time is 26min.The WO emulsion of above-mentioned swill oil formation, can in the earth formation in migration process To reduce adhesion work of the crude oil in rock wall, remaining oil is peeled off, and run into after residual oil oil droplet, profit circle can be reduced Face tension force, makes oil droplet more yielding, and free remaining oil can be restarted, so as to increase oil displacement efficiency;The breast of greater particle size When shape liquid drop runs into less throat radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur liquid circulation To, expand swept volume, and because for WO emulsion, foreign minister is oil phase, it is smaller to meet flow resistance change after oil, but Meet flow resistance after water and become big, therefore can realize that water blockoff does not block up the selective shut-off of oil.
Embodiment 3:
Configuration quality fraction is that 0.5% HLB value is less than 6 polyglycereol stearic acid ester solution, by itself and pretreated swill oil By volume 7:3 mixing, add active peptides, the amino acid sequence of active peptides is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing WO emulsion is prepared into ultrasonic homogenizer.On State active peptides and be respectively provided with good compatibility with swill oil and emulsifying agent, active peptides are attached to swill oil and emulsifying agent is formed Water-in-oil emulsion molecular surface, can be remarkably reinforced the hydrophobicity of WO emulsion, improve WO emulsion Water plugging property.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion average grain diameter is more than mesh Pore throat in reservoirs mean radius is marked, and emulsion can keep syneresis rate in 15 days to be less than 20%, interfacial tension at a temperature of target reservoir Less than 10-3mN/m.The working frequency of ultrasonic homogenizer is 3kHZ, and the working time is 26min.The oil bag of above-mentioned swill oil formation Water type emulsion in migration process, can reduce adhesion work of the crude oil in rock wall, remaining oil is peeled off in the earth formation, and Run into after residual oil oil droplet, oil water interfacial tension can be reduced, make oil droplet more yielding, free remaining oil can be opened again It is dynamic, so as to increase oil displacement efficiency;When the emulsion droplet of greater particle size runs into less throat radius, due to Jamin effect, production Raw larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and due to for WO emulsion, foreign minister For oil phase, meet flow resistance after oil and change smaller, but meet flow resistance after water and become big, therefore can realize that water blockoff does not block up oily selection Property seal-off effect.The pretreatment operation of swill oil is:The swill oil produced in life is collected, sedimentation filtration obtains triglyceride and contained Oil product of the amount higher than 80%.
Routine operation in the operating procedure of the present invention is well known to those skilled in the art, herein without repeating.
Technical scheme is described in detail embodiment described above, it should be understood that it is described above only For the specific embodiment of the present invention, it is not intended to limit the invention, all any modifications made in the spirit of the present invention, Supplement or similar fashion replacement etc., should be included in the scope of the protection.
SEQUENCE LISTING
<110>Zhejiang Ocean university
<120>A kind of micro emulsion transfer drive system prepared by raw material of swill oil
<130> 1
<160> 1
<170> PatentIn version 3.5
<210> 1
<211> 33
<212> PRT
<213>It is artificial synthesized
<400> 1
Ser Cys Ala Ser Arg Cys Lys Ser Arg Arg Ala Arg Arg Cys Arg Ala
1 5 10 15
Arg Arg Cys Gly Tyr Phe Gly Lys Arg Cys Ile Cys Lys Cys Phe Arg
20 25 30
Cys

Claims (8)

1. a kind of micro emulsion transfer drive system prepared by raw material of swill oil, it is characterised in that:Described transfer drive system is HLB Value is less than the WO emulsion that 6 surfactant and swill oil are mixed to form.
2. a kind of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 1, it is characterised in that: The preparation method of described transfer drive system comprises the following steps:Pretreated swill oil or the swill oil sold on the market are added Into emulsifier solution, active peptides are added, emulsion is prepared into after mixing with ultrasonic homogenizer, and to the chi of emulsion Very little distribution, stability and interfacial tension are measured.
3. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:The amino acid sequence of described active peptides is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.
4. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:Described emulsifier solution is that HLB value is less than 6 anionic, non-ionic or compound surfactant.
5. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:Described emulsifier solution is 6 with swill oil volume ratio:3~6:1.
6. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:The content of emulsifying agent is 0.3%-0.7% in described emulsifier solution.
7. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:The working frequency of described ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.
8. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2, It is characterized in that:The pretreatment operation of described swill oil is:The swill oil produced in life is collected, sedimentation filtration obtains sweet Oily three fat contents are higher than 80% oil product.
CN201710428858.1A 2017-06-08 2017-06-08 A kind of micro emulsion transfer drive system prepared by raw material of swill oil Pending CN107227148A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107779186A (en) * 2017-07-10 2018-03-09 浙江海洋大学 Trench oil emulsion transfer drive

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101191140A (en) * 2006-11-23 2008-06-04 西安华宇投资有限公司 Biological polypeptide blocking remover and preparation method thereof
CN103331127A (en) * 2013-07-09 2013-10-02 中国科学院过程工程研究所 Biosurfactant and preparation method thereof
CN103881676A (en) * 2014-03-13 2014-06-25 中国石油大学(北京) Oil-external emulsion oil displacement agent and preparation method and application thereof
CN104419395A (en) * 2013-08-20 2015-03-18 中国石油化工股份有限公司 Temperature-resistant salt-tolerance nano emulsion used in tertiary oil recovery and preparation method thereof
CN105385428A (en) * 2015-07-03 2016-03-09 中国石油大学(华东) Emulsion-type self-adaptive plugging agent suitable for high salinity stratum and preparation method thereof
CN106754539A (en) * 2017-01-04 2017-05-31 中国科学院沈阳应用生态研究所 One plant of anaerobism produces bacillus subtilis and its application of lipopeptide surfactant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101191140A (en) * 2006-11-23 2008-06-04 西安华宇投资有限公司 Biological polypeptide blocking remover and preparation method thereof
CN103331127A (en) * 2013-07-09 2013-10-02 中国科学院过程工程研究所 Biosurfactant and preparation method thereof
CN104419395A (en) * 2013-08-20 2015-03-18 中国石油化工股份有限公司 Temperature-resistant salt-tolerance nano emulsion used in tertiary oil recovery and preparation method thereof
CN103881676A (en) * 2014-03-13 2014-06-25 中国石油大学(北京) Oil-external emulsion oil displacement agent and preparation method and application thereof
CN105385428A (en) * 2015-07-03 2016-03-09 中国石油大学(华东) Emulsion-type self-adaptive plugging agent suitable for high salinity stratum and preparation method thereof
CN106754539A (en) * 2017-01-04 2017-05-31 中国科学院沈阳应用生态研究所 One plant of anaerobism produces bacillus subtilis and its application of lipopeptide surfactant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107779186A (en) * 2017-07-10 2018-03-09 浙江海洋大学 Trench oil emulsion transfer drive

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