CN104762078B - A kind of multi-functional air foam flooding foaming system - Google Patents
A kind of multi-functional air foam flooding foaming system Download PDFInfo
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- CN104762078B CN104762078B CN201510118131.4A CN201510118131A CN104762078B CN 104762078 B CN104762078 B CN 104762078B CN 201510118131 A CN201510118131 A CN 201510118131A CN 104762078 B CN104762078 B CN 104762078B
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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
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- 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 invention discloses a kind of multi-functional air foam flooding foaming system, it is related to oil field development technical field, for improving oil recovery factor.The foaming system each component and percentage by weight are：Sodium sulfate of polyethenoxy ether of fatty alcohol：0.1%~0.5%；Silicones polyethers emulsion：0.05%~0.2%；PAMA：0.05%~0.2%；Molasses：0.5%~2%；Yeast extract：0.01%~0.1%；Ferrous sulfate：0.0005%~0.005%；Manganese sulfate：0.00005%~0.0002%；Sodium nitrate：0.05%~0.5%；Surplus is water, and each component percentage by weight sum is absolutely.The present invention, which can save regular air foam flooding and apply man-hour requirement addition ground oxygen reduction apparatus and need to irregularly carry out profile control gas shutoff, the reality such as alters, and realizes that air foam flooding shaft is more safe efficient and low cost operation.
Description
Technical field
Invention is related to oil field development technical field, a kind of multi-functional air foam flooding foaming more particularly in tertiary oil recovery
System, oil recovery factor is improved for mid-late oilfield development.
Background technology
Air foam flooding shaft is to be mixed to form foam on ground or oil reservoir by a certain percentage as drive using air and foaming system
The a kind of of oily means improves recovery efficiency technique.The technology drives air and foam flooding combines, and profile control is used as using foam
Agent, air can significantly improve sweep efficiency, can improve displacement efficiency again, while can also reduce chemical flooding and lead as oil displacement agent
The reservoir and environmental injury of cause, it is a kind of raising oil recovery factor technology with broad prospect of application.
Foaming system (being called foam system) is the core of air foam flooding shaft technology, and foaming system generally has surface-active
Agent, stabilizer and water composition.At present, known foaming system formula mainly has following several：Patent document
201210191135.1 disclose a kind of foam system and a kind of flooding method suitable for oil field profile control and the displacement of reservoir oil, foaming system
Surfactant is alkylolamides APEO, alkyl polyglycoside, double alkylamide APEOs etc. in formula, stabilizer
For hard fatty acids ammonium, OA-12, polyethylene glycol etc., thickener is poly table agent, acrylamide, cellulose
It is sodium chloride, sodium sulphate, sodium acid carbonate etc. Deng, inorganic salts, surplus is water.Patent document 200910163127.4 discloses one kind
Foaming system is made up of neopelex, modified guanidine glue, hydroxyethyl cellulose and lauryl alcohol.Patent document
201210223060.0 disclose a kind of composite foam system of oil gas field addition nano particle and preparation method thereof, the bubble
Foam system is made up of lauryl sodium sulfate, modified silica nanoparticle, counter ion salt and water.Patent document
98813947.2 disclose a kind of foam compsoite oil drive method, and foaming system is made up of surfactant, polymer and alkali.
Known foaming system, be all foaming, the foam stabilizing function for meeting that foaming system is simple, though with preferably foaming and
Foam stability energy, but in air foam flooding shaft actual application, following two aspect also be present：First, foamy body is small, meet
Oily easily defoaming, shut-off capacity is limited, and has channeling problem is still serious.Secondly because the generation of has channeling, the oxygen in air is easily
Into oil well, potential safety hazard is formed.It is often supporting certain in air foam flooding shaft implementation process because of the presence of above mentioned problem
Ground oxygen reduction apparatus and profile control measures, so considerably increase development cost, and profile control operation can cause air foam flooding shaft
Measure is discontinuous, influences Flooding Efficiency.
The content of the invention
The purpose of the present invention is：In view of the shortcomings of the prior art, there is provided a kind of multi-functional air foam flooding foaming system.
The foaming system of the present invention is except possessing preferably foaming, in addition to foam stabilizing function, moreover it is possible to the oil recovery function bacterium in oil reservoir is activated, using adopting
The oxygen that oily function bacterium biochemical reaction consumption enters in stratum, and by bio aggregate caused by its metabolism and agglomerate realization pair
The closure of stratum Thief zone water stream channel, so as to realize that air foam flooding shaft is safe efficient, low cost operation.
The technical solution adopted by the present invention is：
First, a kind of raw material of multi-functional air foam flooding foaming system includes：
1st, sodium sulfate of polyethenoxy ether of fatty alcohol：Molecular formula RO (CH2CH2O) n-SO3Na (the alkane of n=2 or 3, R12~15
Base).(Zhou Li, Ren Jing, Huang Ya eat sodium sulfate of polyethenoxy ether of fatty alcohol present situation [J] the household chemicals section of West Europe and China
Learn .2014 (03)).Property：Colourless or slightly yellow transparent body of paste, it is soluble in water, there is excellent decontamination, emulsification, foaminess
Can be with hard water resistance performance.Purposes：It is widely used in the industries such as daily-use chemical industry, weaving, oil, leather, printing and dyeing.Production unit：River
Su Sheng Hai'an petrochemical plant.
2nd, silicones polyethers emulsion：Abbreviation MPS, it is made by being emulsified after silicones and ethyleneoxide addition, content of polyether
55%.(research of Huang Yanhua organic siliconresins and Siloxane-Oxyalkylene Copolymers and application [D] Jinan：Shandong University master learns
Degree thesis whole-length, 2005).Property：Transparency liquid, good water solubility.With excellent foam stabilizing ability, it is usually used in drilling foaming agent, oil field
With foaming agent, fire-fighting foams agent etc..Production unit：Linyi Lv Sen Chemical Co., Ltd.s
3rd, PAMA：Alias：Anionic portion hydrolyzed polyacrylamide, abbreviation HPAM.(Lee field rosy clouds
The preparation of anion-polyacrylamide flocculant and application [J] Speciality Petrochemicals .2006 (02)).Property：It is white or light
Yellow powder, water is dissolved in, there is preferably clarification purification and thickening power.It is applied to oil recovery, drilling mud in petroleum industry, gives up
Mud conditioning, improve recovery ratio etc..Production unit：Shandong Polymer Bio-Chemicals Co., Ltd..
4th, molasses：Molasses are the byproducts of sugar industry, form because sugaring raw material, processing conditions it is different and variant,
Wherein mainly contain a large amount of fermentable sugars (mainly sucrose 42~50%).(Wang Xiang eats cane molasses clarifying treatment and before processing
Component analysis [J] China flavouring .2010 (02) afterwards).Molasses are in brown color thick liquid, good water solubility, there is the fragrance of yeast
Breath and the sweet taste of molasses.It can be used as the substrate or base-material of the fermented products such as yeast, monosodium glutamate, organic acid, can be used as some food
Raw material and animal feed.Production unit：Beijing Hydron Xin Lin developments in science and technology Co., Ltd.
5th, yeast extract：Also known as yeast extraction, abbreviation YE.(research [J] China seasoning of a rainbow yeast extract
Product .2000 (02)).Main component is polypeptide, amino acid, flavour nucleotide, B family vitamin and trace element.It is a kind of excellent
Natural flavouring, have in food service industry and have been widely used, and ideal biological culture medium raw material and fermentation work
Primary raw material in industry, its effect and 8 times of Yeast Phase are worked as, and the throughput rate and fermented product that can greatly improve strain obtain
Rate.Production unit：Shanghai Yuan Tai Bioisystech Co., Ltd.
6th, ferrous sulfate.
7th, manganese sulfate.
8th, sodium nitrate.
9th, water：Oil-field flooding clear water or extraction sewage.
A kind of multi-functional air foam flooding is with foaming system each component percentage by weight：
Sodium sulfate of polyethenoxy ether of fatty alcohol：0.1%~0.5%；
Silicones polyethers emulsion：0.05%~0.2%；
PAMA：0.05%~0.2%；
Molasses：0.5%~2%；
Yeast extract：0.01%~0.1%；
Ferrous sulfate：0.0005%~0.005%；
Manganese sulfate：0.00005%~0.0002%；
Sodium nitrate：0.05%~0.5%；
Surplus is oil-field flooding clear water or extraction sewage, and each component percentage by weight sum is absolutely.
2nd, a kind of preparation method of multi-functional air foam flooding foaming system：
Capital equipment：The Agitation Tank of belt stirrer.
Preparation method：
It is step 1, sodium sulfate of polyethenoxy ether of fatty alcohol, silicones polyethers emulsion, molasses, yeast extract, sulfuric acid is sub-
Seven kinds of iron, manganese sulfate, sodium nitrate medicaments add by weight percentage be measured by the percentage by weight be in stirring under
In water (seven kinds of medicament addition sequence no requirement (NR)s above), stir.
Step 2, by the PAMA being measured by the percentage by weight be slowly added to be in stirring under
In the solution that step 1 prepares, stirring two hours or so is completely dissolved to PAMA.
Step 3, solution left standstill that step 2 prepares is cured 12 hours produce multi-functional air foam flooding foaming body
System.
Multi-functional air foam flooding is sketched with foaming system application method：By above-mentioned multi-functional air foam flooding foaming body
System, replace injection stratum with air, for improving oil recovery factor.The multi-functional air foam flooding foaming system Injection Section
Fill in for 0.1~0.3 times of reservoir pore volume, air injection slug be 0.1~0.3 times of reservoir pore volume, alternately injection.
Beneficial effects of the present invention：The multi-functional air foam flooding foaming system of the present invention, is replacing injection with air
Behind stratum, foam that is intensive and having good stability can be formed in the earth formation, can not only effectively realize regular air foam flooding function,
The oil recovery function bacterium in oil reservoir can also be activated, the oxygen entered using the consumption of oil recovery function bacterium biochemical reaction in stratum, and rely on
Bio aggregate and agglomerate realize the closure of floor height infiltration water stream channel over the ground caused by the metabolism of oil recovery function bacterium, reduce has channeling hair
It is raw.So as to save regular air foam flooding ground need to add oxygen reduction apparatus and needing irregularly carry out profile control gas shutoff alter etc. it is existing
It is real, realize that air foam flooding shaft is safe efficient, low cost operation.
Application：A kind of multi-functional air foam flooding foaming system of the present invention, suitable for waterflooding extraction 2 years and
Above and temperature is less than 70 DEG C of oil reservoir.
Embodiment
Embodiment 1：Multi-functional air foam flooding foaming system, each component active ingredient percentage by weight are：
Sodium sulfate of polyethenoxy ether of fatty alcohol：0.5%；
Silicones polyethers emulsion：0.2%；
PAMA：0.2%；
Molasses：2%；
Yeast extract：0.1%；
Ferrous sulfate：0.005%；
Manganese sulfate：0.0002%；
Sodium nitrate：0.5%；
Surplus is beggar level ground oilfield injection water, and each component percentage by weight sum is absolutely.
The present embodiment preparation method：
It is step 1, sodium sulfate of polyethenoxy ether of fatty alcohol, silicones polyethers emulsion, molasses, yeast extract, sulfuric acid is sub-
Seven kinds of iron, manganese sulfate, sodium nitrate medicaments add by weight percentage be measured by the percentage by weight be in stirring under
In the oilfield injection water of beggar level ground (seven kinds of medicament addition sequence no requirement (NR)s above), stir.
Step 2, by the PAMA being measured by the percentage by weight be slowly added to be in stirring under
In the solution that step 1 prepares, stirring two hours or so is completely dissolved to PAMA.
Step 3, solution left standstill that step 2 prepares is cured 12 hours produce multi-functional air foam flooding foaming body
System.
The using effect of embodiment 1：Multi-functional air foam flooding foaming system prepared by embodiment 1, handed over air
For injection beggar level ground oil field 36-21 wells, injection rate is 0.2 times of reservoir pore volume.After measure is implemented six months, corresponding well group
Aqueous to have dropped 16.75%, increase day by day 4.65 tons of oil, and corresponding well mouth of oil well no oxygen detection.
Embodiment 2：Multi-functional air foam flooding foaming system, each component active ingredient percentage by weight are：
Sodium sulfate of polyethenoxy ether of fatty alcohol：0.1%；
Silicones polyethers emulsion：0.05%；
PAMA：0.05%；
Molasses：0.5%；
Yeast extract：0.01%；
Ferrous sulfate：0.0005%；
Manganese sulfate：0.00005%；
Sodium nitrate：0.05%；
Surplus is beggar level ground oilfield produced waste water, and each component percentage by weight sum is absolutely.
The present embodiment preparation method：
It is step 1, sodium sulfate of polyethenoxy ether of fatty alcohol, silicones polyethers emulsion, molasses, yeast extract, sulfuric acid is sub-
Seven kinds of iron, manganese sulfate, sodium nitrate medicaments add by weight percentage be measured by the percentage by weight be in stirring under
In the oilfield produced waste water of beggar level ground (seven kinds of medicament addition sequence no requirement (NR)s above), stir.
Step 2, by the PAMA being measured by the percentage by weight be slowly added to be in stirring under
In the solution that step 1 prepares, stirring two hours or so is completely dissolved to PAMA.
Step 3, solution left standstill that step 2 prepares is cured 12 hours produce multi-functional air foam flooding foaming body
System.
The using effect of embodiment 2：Multi-functional air foam flooding foaming system prepared by embodiment 1, handed over air
For injection beggar level ground oil field 43-46 wells, injection rate is 0.25 times of reservoir pore volume.After measure is implemented six months, corresponding well
Group is aqueous to have dropped 21.2%, and increase day by day 5.12 tons of oil, and corresponding well mouth of oil well no oxygen detection.
Comparative example 1：On the basis of embodiment 1, molasses, yeast extract, ferrous sulfate, manganese sulfate, nitric acid are not added
Sodium
Sodium sulfate of polyethenoxy ether of fatty alcohol：0.5%；
Silicones polyethers emulsion：0.2%；
PAMA：0.2%；
Surplus is beggar level ground oilfield injection water, and each component percentage by weight sum is absolutely.
Preparation method of the preparation method of comparative example 1 with embodiment 1.
The using effect of comparative example：Foam system prepared by comparative example 1, replace injection beggar level ground oil field with air
57-43 wells, injection rate are 0.22 times of reservoir pore volume.After measure is implemented six months, correspondingly well group is aqueous have dropped 5.5%,
Increase day by day 1.26 tons of oil.But 3 months oil wells start to detect oxygen after measure, air has channeling problem is serious.
Claims (2)
1. a kind of multi-functional air foam flooding foaming system, it is characterized in that：Each component percentage by weight is：
Sodium sulfate of polyethenoxy ether of fatty alcohol：0.1%~0.5%；
Silicones polyethers emulsion：0.05%~0.2%；
PAMA：0.05%~0.2%；
Molasses：0.5%~2%；
Yeast extract：0.01%~0.1%；
Ferrous sulfate：0.0005%~0.005%；
Manganese sulfate：0.00005%~0.0002%；
Sodium nitrate：0.05%~0.5%；
Surplus is oil-field flooding clear water or extraction sewage, and each component percentage by weight sum is absolutely.
2. a kind of multi-functional air foam flooding foaming system according to claim 1, it is characterized in that：Preparation method：
Step 1, by sodium sulfate of polyethenoxy ether of fatty alcohol, silicones polyethers emulsion, molasses, yeast extract, ferrous sulfate, sulphur
Seven kinds of sour manganese, sodium nitrate medicaments add by weight percentage be measured by the percentage by weight be in stirring under water in,
Seven kinds of medicament addition sequence no requirement (NR)s of the above, stir；
Step 2, the step 1 for being slowly added to be under stirring by the PAMA being measured by the percentage by weight
In the solution prepared, stirring two hours or so is completely dissolved to PAMA；
Step 3, solution left standstill that step 2 prepares is cured 12 hours produce multi-functional air foam flooding foaming system.
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| CN106590607B (en) * | 2015-10-20 | 2019-07-09 | 中国石油化工股份有限公司 | Temperature-resistant anti-salt low-tension foaming agent combination and preparation method thereof |
| CN110591681B (en) * | 2019-08-12 | 2022-02-01 | 中国石油天然气股份有限公司 | Foaming system for air foam flooding and preparation method and application thereof |
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|---|---|---|---|---|
| US6439308B1 (en) * | 1998-04-06 | 2002-08-27 | Da Qing Petroleum Administration Bureau | Foam drive method |
| CN102434137A (en) * | 2011-12-16 | 2012-05-02 | 中国石油天然气股份有限公司 | Ultra-low interfacial tension coupling type air foam oil displacement method |
| CN102618246A (en) * | 2012-03-08 | 2012-08-01 | 中国石油天然气股份有限公司 | Foam composite oil displacement method suitable for oilfield development |
| CN102703052A (en) * | 2012-06-11 | 2012-10-03 | 中国石油天然气股份有限公司 | Foam system suitable for profile control and oil displacement of oil field and oil displacement method |
| CN104059625A (en) * | 2014-07-02 | 2014-09-24 | 成都理工大学 | Method for preparing high-stability heat-resistance and salt-tolerance air foam oil displacing agent |
-
2015
- 2015-03-18 CN CN201510118131.4A patent/CN104762078B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6439308B1 (en) * | 1998-04-06 | 2002-08-27 | Da Qing Petroleum Administration Bureau | Foam drive method |
| CN102434137A (en) * | 2011-12-16 | 2012-05-02 | 中国石油天然气股份有限公司 | Ultra-low interfacial tension coupling type air foam oil displacement method |
| CN102618246A (en) * | 2012-03-08 | 2012-08-01 | 中国石油天然气股份有限公司 | Foam composite oil displacement method suitable for oilfield development |
| CN102703052A (en) * | 2012-06-11 | 2012-10-03 | 中国石油天然气股份有限公司 | Foam system suitable for profile control and oil displacement of oil field and oil displacement method |
| CN104059625A (en) * | 2014-07-02 | 2014-09-24 | 成都理工大学 | Method for preparing high-stability heat-resistance and salt-tolerance air foam oil displacing agent |
Non-Patent Citations (1)
| Title |
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| 微生物技术简介;dswanggang1314;《百度文库》;20130922;全文 * |
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