CN109749728A - A kind of pressure break blistering cleanup additive and preparation method thereof - Google Patents
A kind of pressure break blistering cleanup additive and preparation method thereof Download PDFInfo
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- CN109749728A CN109749728A CN201711080187.0A CN201711080187A CN109749728A CN 109749728 A CN109749728 A CN 109749728A CN 201711080187 A CN201711080187 A CN 201711080187A CN 109749728 A CN109749728 A CN 109749728A
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- polyoxyethylene ether
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Abstract
The present invention relates to a kind of pressure break blistering cleanup additives and preparation method thereof, belong to oil-gas mining technical field.Blistering cleanup additive of the invention consists of the following mass percentage components: the alkene sulfonic acid sodium of 5-30%, the fatty alcohol polyoxyethylene ether of 3-25% or the esterification derivative of fatty alcohol polyoxyethylene ether, the alkyl phenol polyoxyethylene ether of 0-30% or the esterification derivative of alkyl phenol polyoxyethylene ether, the fluorocarbon surfactant of 0.1-5%, the alkyl betaine of 0-20% or the derivative of alkyl betaine, the fatty acid alkanol amides of 3-10%, the low mass molecule alcohol of 0-20%, surplus are water.Foaming agent and cleanup additive compatibility are good in blistering cleanup additive of the invention, and stable foam can be formed in fracturing fluid, reduce the leak-off of fracturing fluid in the earth formation, and can help the fracturing fluid preferably row of returning.
Description
Technical field
The present invention relates to a kind of pressure break blistering cleanup additives and preparation method thereof, belong to oil-gas mining technical field.
Background technique
During petroleum gas opens production, especially in the recovery process of untraditional reservoir, since reservoir has rock
Heart densification, low hole, feature hypotonic, strata pressure is low, the method for generalling use hydraulic fracturing use aqueous fracturing fluid to reservoir
It is transformed, discouraged area is improved to form man-made fracture in reservoir, to obtain industrial gas.But in fracturing process
The aqueous fracturing fluid used enters reservoir, the aquation of clay mineral can be caused swollen after especially fine and close special low permeability oil field reservoir
It is swollen migration, water lock etc. injury.Moreover, after pressing crack construction, needs to return the raffinate of fracturing fluid from reservoir and eject.But
It is the effect due to stratum capillary resistance, fracturing fluid raffinate will be unable to return discharge stratum completely, and partial open liquid will be trapped in
In reservoir, its permeability is reduced, it is caused further to injure.In order to reducing injury of the fracturing fluid to reservoir, allow into
The fracturing fluid for entering reservoir returns discharge stratum as far as possible, foaming agent and cleanup additive is often added in fracturing fluid, using the side with fluid injection nitrogen
Formula forms class A foam A fracturing fluid, to reduce the leak-off of fracturing fluid in the earth formation, promotes the row of returning.
Currently used foaming agent is mostly that macromolecular substances, non-ionic surface active are added in surfactant-based foaming agent
The foam stabilizers such as agent, aliphatic category are formulated；Cleanup additive is mostly that low molecule alcohol, surfactant formulatory form.However to
During being individually added into foaming agent and cleanup additive in fracturing fluid, length has that compatibility is bad between the two, has caused
Infusion and cleanup additive cannot play optimum efficiency.Therefore, it is necessary to a kind of blistering cleanup additive is developed, it can be in fracturing fluid
Stable foam is formed, the leak-off of fracturing fluid in the earth formation is reduced, helps the fracturing fluid preferably row of returning.
In the prior art, such as application No. is a kind of gas well use is disclosed in 2016610783247.4 Chinese patent text
Blister cleanup additive, which is made of surfactant, foam stabilizer, auxiliary agent and water, and the gas well is steady with blistering cleanup additive
The bubble time is shorter, foaming effect is poor, and does not take into account the parameters such as water flooding oil water interfacial tension, is only applicable in water-free gas reservoir
Pressure break is used.
Summary of the invention
The object of the present invention is to provide a kind of pressure break blistering cleanup additives, can reduce the leak-off of fracturing fluid in the earth formation,
Fracturing fluid table/interfacial tension is reduced, fracturing fluid recovery (backflow) is helped.
The present invention also provides the above-mentioned pressure break preparation methods of blistering cleanup additive.
A kind of pressure break blistering cleanup additive, consists of the following mass percentage components: the alkene sulfonic acid sodium of 5-30%, 3-
25% fatty alcohol polyoxyethylene ether or the esterification derivative of fatty alcohol polyoxyethylene ether, the alkyl phenol polyoxyethylene ether of 0-30%
Or the esterification derivative of alkyl phenol polyoxyethylene ether, the fluorocarbon surfactant of 0.1-5%, the alkyl betaine or alkane of 0-20%
The derivative of base glycine betaine, the fatty acid alkanol amides of 3-10%, the low mass molecule alcohol of 0-20%, surplus are water.
Preferably, pressure break of the invention blistering cleanup additive, consists of the following mass percentage components: 6% alkene
Sodium sulfonate, 8% fatty alcohol polyoxyethylene ether or the esterification derivative of fatty alcohol polyoxyethylene ether, 15% alkyl phenol polyoxy second
The esterification derivative of alkene ether or alkyl phenol polyoxyethylene ether, 1% fluorocarbon surfactant, 12% alkyl betaine or alkyl
The derivative of glycine betaine, 5% fatty acid alkanol amides, 5% low mass molecule alcohol, surplus are water.
The alkene sulfonic acid sodium is the alkene sulfonic acid sodium that carbon atom number is 12-22.
Alkene sulfonic acid sodium in the present invention is by alkane or aromatic hydrocarbons by SO3Or after chlorosulfuric acid in sodium hydroxide and make
?.
The fatty alcohol polyoxyethylene ether is the fatty alcohol polyoxyethylene ether that carbon atom number is 12-24 in aliphatic chain.
The polyoxyethylated degree of polymerization is 15-20 in the fatty alcohol polyoxyethylene ether.
The fatty alcohol polyoxyethylene ether esterification derivative is derivative for sulfuric ester, the phosphate of fatty alcohol polyoxyethylene ether
Object.
The fatty alcohol polyoxyethylene ether esterification derivative is sodium sulfate of polyethenoxy ether of fatty alcohol.
The alkyl phenol polyoxyethylene ether is the alkyl phenol polyoxyethylene ether that atomic number of alkyl carbon is 12-22.
The alkyl phenol polyoxyethylene ether esterification derivative is derivative for sulfuric ester, the phosphate of alkyl phenol polyoxyethylene ether
Object.
The derivative of the alkyl phenol polyoxyethylene ether esterification is alkyl phenol polyethenoxy ether sodium sulfate.
Alkyl in the alkyl phenol polyoxyethylene ether is the hydrocarbyl group in straight chain, branch and/or cyclic structure.
The polyoxyethylated degree of polymerization is 15-20 in the alkyl phenol polyoxyethylene ether.
The fluorocarbon surfactant product designation is FC-03, and manufacturer is Shanghai Jian Hong Industrial Co., Ltd..
The alkyl betaine is the alkyl betaine that atomic number of alkyl carbon is 12-18.
As another embodiment of the invention, the derivative of the alkyl betaine is the alkyl in alkyl betaine
Replaced by one or more halogens, alkoxy.
The derivative of the alkyl betaine is alkyl azochlorosulfonate propyl lycine.
The low mass molecule alcohol is the low mass molecule alcohol that carbon atom number is 2-9.
Preferably, the low mass molecule alcohol is ethyl alcohol, propyl alcohol or octanol.
The low mass molecule alcohol is used as solvent in blistering cleanup additive.
The preparation method of above-mentioned pressure break blistering cleanup additive, comprising: by the alkene sulfonic acid sodium of formula ratio, fatty alcohol polyoxy
The esterification of vinethene or the esterification derivative of fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether or alkyl phenol polyoxyethylene ether
It is added after derivative, fluorocarbon surfactant, the derivative of alkyl betaine or alkyl betaine, fatty acid alkanol amides mixing
Low mass molecule alcohol stirs 20-50min, and water is then added and mixes to obtain the final product.
Anionic and nonionic pressure break of the invention is with blistering cleanup additive by alkene sulfonic acid sodium, fatty alcohol polyoxyethylene ether and its esterification
Derivative, alkyl phenol polyoxyethylene ether and its esterification derivative, fluorocarbon surfactant, alkyl betaine and its derivative, rouge
Fat acid alkanolamide, low mass molecule alcohol, water composition, can be used in fine and close oil-gas reservoir foam/class A foam A fracturing fluid system, specific system
Group is grouped as can be depending on the conditions such as reservoir temperature, salinity.Foaming agent and cleanup additive compatibility in blistering cleanup additive of the invention
Well, stable foam can be formed in fracturing fluid, reduce the leak-off of fracturing fluid in the earth formation, and fracturing fluid can be helped better
The row of returning.
Pressure break of the invention is easy with blistering cleanup additive preparation method, easy to industrialized production.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
Embodiment 1
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 6% C12Alpha-olefin sodium sulfonate,
8% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 15), 15% C14Alkyl phenol polyoxyethylene ether
(the polyoxyethylated degree of polymerization is 15), 1% fluorocarbon surfactant FC-03,12% C12Alkyl betaine, 5% laurel
Sour single ethanol amide, 5% ethyl alcohol, 48% water.
The preparation method of above-mentioned blistering cleanup additive, comprising: by C12Alpha-olefin sodium sulfonate, C12Fatty alcohol polyoxyethylene ether
Sodium sulphate (the polyoxyethylated degree of polymerization is 15), C14Alkyl phenol polyoxyethylene ether (the polyoxyethylated degree of polymerization is 15), fluorine carbon table
Face activating agent, C12Alkyl betaine, lauric monoethanolamide are proportionally added into reactor, and ethyl alcohol is added and stirs 30min, water
Divide 3 times and be slowly added to, stirs evenly.
Blistering cleanup additive product in the present embodiment is faint yellow uniform liquid, water-soluble good, pH=8-10.5.
Embodiment 2
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 8% C12Alpha-olefin sodium sulfonate,
6% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 15), 18% C14Alkyl phenol polyoxyethylene ether
(the polyoxyethylated degree of polymerization is 15), 1% fluorocarbon surfactant FC-03,16% C12Alkyl betaine, 3% fat
Sour alkanolamide, 10% ethyl alcohol, 38% water.
The preparation method of above-mentioned blistering cleanup additive, comprising: by C12Alpha-olefin sodium sulfonate, C12Fatty alcohol polyoxyethylene ether
Sodium sulphate, C14Alkyl phenol polyoxyethylene ether, fluorocarbon surfactant, C12Alkyl betaine, fatty acid alkanol amides add in proportion
Enter in reactor, ethyl alcohol is added and stirs 20min, is slowly added to for moisture 3 times, stirs evenly.
Blistering cleanup additive product in the present embodiment is faint yellow uniform liquid, water-soluble good, pH=7.5-10.5.
Embodiment 3
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 12% C12Alpha-olefin sodium sulfonate,
4% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 12), 18% C18Alkyl phenol polyoxyethylene ether
Sodium sulphate (the polyoxyethylated degree of polymerization is 12), 1.5% fluorocarbon surfactant FC-03,12% C12Alkyl sulfopropyl sweet tea
Dish alkali, 5% fatty acid alkanol amides, 15% ethyl alcohol, 32.5% water.
The preparation method of above-mentioned blistering cleanup additive, comprising: by C12Alpha-olefin sodium sulfonate, C12Fatty alcohol polyoxyethylene ether
Sodium sulphate, C18Alkyl phenol polyethenoxy ether sodium sulfate, fluorocarbon surfactant, C12Alkyl azochlorosulfonate propyl lycine, fatty acid alkanol
Amide is proportionally added into reactor, and ethyl alcohol is added and stirs 50min, is slowly added to for moisture 1 time, stirs evenly.
Blistering cleanup additive product in the present embodiment is faint yellow uniform liquid, water-soluble good, pH=7.5-10.5.
Embodiment 4
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 30% C12Alpha-olefin sodium sulfonate,
3% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 18), 30% C14Alkyl phenol polyoxyethylene ether
(the polyoxyethylated degree of polymerization is 18), 0.1% fluorocarbon surfactant FC-03,3% fatty acid alkanol amides, 1% second
Alcohol, 32.9% water.
The preparation method is the same as that of Example 1 for blistering cleanup additive in the present embodiment.
Embodiment 5
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 5% C12Alpha-olefin sodium sulfonate,
25% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 20), 2% C14Alkyl phenol polyoxyethylene ether
(the polyoxyethylated degree of polymerization is 20), 5% fluorocarbon surfactant FC-03,20% C12Alkyl betaine, 10% fat
Sour alkanolamide, 5% ethyl alcohol, 28% water.
The preparation method is the same as that of Example 1 for blistering cleanup additive in the present embodiment.
Embodiment 6
Blister cleanup additive in the present embodiment, consists of the following mass percentage components: 5% C12Alpha-olefin sodium sulfonate,
10% C12Sodium sulfate of polyethenoxy ether of fatty alcohol (the polyoxyethylated degree of polymerization is 15), 1% C14Alkyl phenol polyoxyethylene ether
(the polyoxyethylated degree of polymerization is 15), 2% fluorocarbon surfactant FC-03,5% C12Alkyl betaine, 3% fatty acid
Alkanolamide, 20% ethyl alcohol, 54% water.
The preparation method is the same as that of Example 1 for blistering cleanup additive in the present embodiment.
Comparative example
Blistering cleanup additive in this comparative example, consists of the following mass percentage components: the aliphatic alcohol polyethenoxy of 12g
Ether, the ethyl alcohol of 15g, 5g dodecyldimethylamine oxide the cleanup additive that blisters made of 68g water is added after mixing.
Test example
Detect concentration, surface tension, the interfacial tension, hair of the blistering cleanup additive in 1-6 of the embodiment of the present invention and comparative example
Foam product, half-life period and thermal stability, testing result are as shown in table 1:
Particular product performance parameters in 1 embodiment 1-6 of table and comparative example
The blistering cleanup additive of 1-6 of the embodiment of the present invention has compared with commercially available foaming agent, cleanup additive as can be seen from Table 1
The function of blistering and the row of helping, and definite ingredients are individually added into, is added in fracturing fluid system relative to two kinds of single doses, reduces compatibility
Property difference problem, saved cost, improved builder activity.Compared with comparative example, the embodiment foam stabilizing time is longer, can apply
The leak-off of fracturing fluid is reduced during work, and table, interfacial tension are lower, reduce injury of the fracturing fluid filtrate to reservoir, are conducive to
The row of returning.
Claims (9)
1. a kind of pressure break blistering cleanup additive, it is characterised in that: consist of the following mass percentage components: the alkene of 5-30%
Sodium sulfonate, the fatty alcohol polyoxyethylene ether of 3-25% or the esterification derivative of fatty alcohol polyoxyethylene ether, the alkyl phenol of 0-30%
The esterification derivative of polyoxyethylene ether or alkyl phenol polyoxyethylene ether, the fluorocarbon surfactant of 0.1-5%, the alkyl of 0-20%
The derivative of glycine betaine or alkyl betaine, the fatty acid alkanol amides of 3-10%, the low mass molecule alcohol of 0-20%, surplus are water.
2. pressure break according to claim 1 blistering cleanup additive, it is characterised in that: the alkene sulfonic acid sodium is carbon atom number
For the alkene sulfonic acid sodium of 12-22.
3. pressure break according to claim 1 blistering cleanup additive, it is characterised in that: the fatty alcohol polyoxyethylene ether is rouge
Carbon atom number is the fatty alcohol polyoxyethylene ether of 12-24 in fat chain.
4. pressure break according to claim 1 or 3 blistering cleanup additive, it is characterised in that: the fatty alcohol polyoxyethylene ether
In the polyoxyethylated degree of polymerization be 15-20.
5. pressure break according to claim 1 blistering cleanup additive, it is characterised in that: the alkyl phenol polyoxyethylene ether is alkane
Base carbon atom number is the alkyl phenol polyoxyethylene ether of 12-22.
6. pressure break blistering cleanup additive according to claim 1 or 5, it is characterised in that: the alkyl phenol polyoxyethylene ether
In the polyoxyethylated degree of polymerization be 15-20.
7. pressure break according to claim 1 blistering cleanup additive, it is characterised in that: the alkyl betaine is that alkyl carbon is former
Subnumber is the alkyl betaine of 12-18.
8. pressure break according to claim 1 blistering cleanup additive, it is characterised in that: the low mass molecule alcohol is that carbon atom number is
The low mass molecule alcohol of 2-9.
9. the pressure break according to claim 1 preparation method of blistering cleanup additive, it is characterised in that: include: by formula ratio
Alkene sulfonic acid sodium, the esterification derivative of fatty alcohol polyoxyethylene ether or fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether
Or the esterification derivative of alkyl phenol polyoxyethylene ether, fluorocarbon surfactant, alkyl betaine or alkyl betaine derivative,
Low mass molecule alcohol is added after fatty acid alkanol amides mixing and stirs 20-50min, water is then added and mixes to obtain the final product.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812761A (en) * | 2021-01-15 | 2021-05-18 | 四川省威沃敦化工有限公司 | Foaming agent with high temperature resistance, high salt content and high condensate oil content as well as preparation method and application thereof |
| CN113004883A (en) * | 2021-03-22 | 2021-06-22 | 郑州市新郑梅久实业有限公司 | Cleanup additive for fracturing and preparation method thereof |
| CN113943564A (en) * | 2021-10-26 | 2022-01-18 | 扬州润达油田化学剂有限公司 | Compound ultra-low interfacial tension surfactant and preparation method thereof |
| CN114437703A (en) * | 2021-12-27 | 2022-05-06 | 河南天祥新材料股份有限公司 | Efficient composite foaming cleanup additive for fracturing and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538462A (en) * | 2009-04-30 | 2009-09-23 | 中国石油天然气股份有限公司 | Oil well cleanup additive |
| CN101831285A (en) * | 2010-05-24 | 2010-09-15 | 中国石油集团川庆钻探工程有限公司 | High-temperature-resistant high-salt-resistant anti-condensation oil foaming agent for fracturing and preparation method thereof |
| CN102031103A (en) * | 2010-11-18 | 2011-04-27 | 陕西延长石油(集团)有限责任公司研究院 | Fracturing fluid system of CO2 cleaning foam |
| CN103773352A (en) * | 2014-01-08 | 2014-05-07 | 四川川庆井下科技有限公司 | Foam flow fracturing fluid |
| CN104946221A (en) * | 2015-06-08 | 2015-09-30 | 成都鼎鸿石油技术有限公司 | Low-density low-damage kill fluid |
| CN105199701A (en) * | 2015-10-21 | 2015-12-30 | 西安长庆化工集团有限公司 | High-temperature resistant, hypersalinity resistant and gas condensate resistant foam scrubbing agent and preparation method thereof |
| CN106167697A (en) * | 2016-06-30 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of oil-gas field fracturing helps row compositions, fracturing extraction assistant and preparation method thereof |
| US20160347990A1 (en) * | 2015-06-01 | 2016-12-01 | Cytec Industries Inc. | Foam-forming surfactant compositions |
-
2017
- 2017-11-06 CN CN201711080187.0A patent/CN109749728A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538462A (en) * | 2009-04-30 | 2009-09-23 | 中国石油天然气股份有限公司 | Oil well cleanup additive |
| CN101831285A (en) * | 2010-05-24 | 2010-09-15 | 中国石油集团川庆钻探工程有限公司 | High-temperature-resistant high-salt-resistant anti-condensation oil foaming agent for fracturing and preparation method thereof |
| CN102031103A (en) * | 2010-11-18 | 2011-04-27 | 陕西延长石油(集团)有限责任公司研究院 | Fracturing fluid system of CO2 cleaning foam |
| CN103773352A (en) * | 2014-01-08 | 2014-05-07 | 四川川庆井下科技有限公司 | Foam flow fracturing fluid |
| US20160347990A1 (en) * | 2015-06-01 | 2016-12-01 | Cytec Industries Inc. | Foam-forming surfactant compositions |
| CN104946221A (en) * | 2015-06-08 | 2015-09-30 | 成都鼎鸿石油技术有限公司 | Low-density low-damage kill fluid |
| CN105199701A (en) * | 2015-10-21 | 2015-12-30 | 西安长庆化工集团有限公司 | High-temperature resistant, hypersalinity resistant and gas condensate resistant foam scrubbing agent and preparation method thereof |
| CN106167697A (en) * | 2016-06-30 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of oil-gas field fracturing helps row compositions, fracturing extraction assistant and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812761A (en) * | 2021-01-15 | 2021-05-18 | 四川省威沃敦化工有限公司 | Foaming agent with high temperature resistance, high salt content and high condensate oil content as well as preparation method and application thereof |
| CN113004883A (en) * | 2021-03-22 | 2021-06-22 | 郑州市新郑梅久实业有限公司 | Cleanup additive for fracturing and preparation method thereof |
| CN113943564A (en) * | 2021-10-26 | 2022-01-18 | 扬州润达油田化学剂有限公司 | Compound ultra-low interfacial tension surfactant and preparation method thereof |
| CN114437703A (en) * | 2021-12-27 | 2022-05-06 | 河南天祥新材料股份有限公司 | Efficient composite foaming cleanup additive for fracturing and preparation method thereof |
| CN114437703B (en) * | 2021-12-27 | 2023-09-05 | 河南天祥新材料股份有限公司 | Efficient composite foaming cleanup additive for fracturing and preparation method thereof |
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Application publication date: 20190514 |