CN116751572A - Foaming agent with ultralow surface tension and high performance and preparation method thereof - Google Patents

Foaming agent with ultralow surface tension and high performance and preparation method thereof Download PDF

Info

Publication number
CN116751572A
CN116751572A CN202310307085.7A CN202310307085A CN116751572A CN 116751572 A CN116751572 A CN 116751572A CN 202310307085 A CN202310307085 A CN 202310307085A CN 116751572 A CN116751572 A CN 116751572A
Authority
CN
China
Prior art keywords
amine oxide
foaming agent
performance
deionized water
preparing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310307085.7A
Other languages
Chinese (zh)
Inventor
李奎
汤永昌
余何
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiujiang Lanzhuo New Material Technology Co ltd
Original Assignee
Jiujiang Lanzhuo New Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiujiang Lanzhuo New Material Technology Co ltd filed Critical Jiujiang Lanzhuo New Material Technology Co ltd
Priority to CN202310307085.7A priority Critical patent/CN116751572A/en
Publication of CN116751572A publication Critical patent/CN116751572A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C09K8/02Well-drilling compositions
    • C09K8/03Specific additives for general use in well-drilling compositions
    • C09K8/035Organic additives
    • 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
    • C09K8/52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • 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
    • 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
    • C09K8/62Compositions for forming crevices or fractures
    • C09K8/66Compositions based on water or polar solvents
    • C09K8/68Compositions based on water or polar solvents containing organic compounds

Abstract

The application is suitable for the technical field of petroleum drilling, and provides an ultra-low surface tension high-performance foaming agent and a preparation method thereof, wherein the foaming agent comprises the following components: 20% -30% of alkyl glycoside, 3% -10% of sodium cocoanut fatty acid alanine, 5% -10% of lauramidopropyl amine oxide, 1.0% -1.5% of cocamidopropyl amine oxide, 5% -15% of dodecyl dimethyl amine oxide, 0.5% -2% of water-soluble organic silicon and 35% -60% of deionized water. The sum of the components is 100%, the yield of the whole production process route is high, the byproducts are few, and the obtained product has excellent and stable foaming performance; the quality of the product accords with the quality standard, is safe and reliable, and has no pollution to the environment in the whole production process.

Description

Foaming agent with ultralow surface tension and high performance and preparation method thereof
Technical Field
The application belongs to the technical field of petroleum drilling chemical agents, and relates to an ultra-low surface tension high-performance foaming agent and a preparation method thereof.
Background
In oilfield development operation, a foaming agent needs to be added into a well flushing liquid so as to reduce the surface tension of a system, increase the permeability of working liquid during operation, improve the operation efficiency and reduce the pumping pressure. Meanwhile, as the foaming agent is added, the working solution is easy to foam under the action forces of mechanical stirring and the like, and the foam can carry out solid stains and other small particle impurities in the well, thereby improving and recovering the oil well production;
the existing foaming agent has low foaming quantity, poor foam stability and cannot achieve ideal effect under high temperature conditions.
Disclosure of Invention
The application provides an ultra-low surface tension high-performance foaming agent and a preparation method thereof, and aims to solve the three problems that the existing foaming agent in the market is low in foaming amount, poor in foam stability and incapable of achieving an ideal effect under high-temperature conditions.
The technical scheme adopted by the application is to provide an ultra-low surface tension high-performance foaming agent which comprises, by weight, 20% -30% of alkyl glycoside, 3% -10% of sodium cocoanut fatty acid alanine, 5% -10% of lauramide propyl amine oxide, 1.0% -1.5% of cocoanut amide propyl amine oxide, 5% -15% of dodecyl dimethyl amine oxide, 0.5% -2% of water-soluble organic silicon and 35% -60% of deionized water.
The preparation method of the high-performance foaming agent comprises the following steps,
step one: weighing raw materials according to a proportion, uniformly mixing a part of deionized water and sodium alanine of coconut oil fatty acid according to a proportion, adding the mixture into a reaction kettle, and heating the reaction kettle to 50 ℃ for maintaining;
step two: when the temperature of the reaction kettle is raised to 50 ℃, starting to add alkyl glycoside, lauramidopropyl amine oxide, cocamidopropyl amine oxide, dodecyl dimethyl amine oxide, water-soluble organic silicon and the rest deionized water, controlling the stirring speed, continuously stirring at a low speed, and stirring for 1-2h to obtain a mixed solution;
step three: and adding a PH regulator according to the pH value of the solution, standing and cooling to obtain the high-performance foaming agent.
Preferably, the sodium alanine cocoate is an ionic amino acid surfactant.
Preferably, the alkyl glycoside is an alkyl polyglycoside having a sugar unit of 2 or more in a complex glycoside compound synthesized from glucose and a fatty alcohol.
Preferably, the cocamidopropyl amine oxide is an amphoteric surfactant which is compatible with anionic, cationic, zwitterionic and nonionic surfactants.
Preferably, the dodecyl dimethyl amine oxide is a specific amphoteric surfactant.
Preferably, the pH regulator in the third step is 5% acetic acid solution, and the regulating range is 6.0-8.0.
Compared with the prior art, the application has the beneficial effects that: the foaming agent can be used for oil and gas well drilling, oil and gas well pigging and flushing, gas well fracturing, gas well drainage and gas production and other oil and gas development operations, has the characteristics of low surface tension, high foaming capacity, uniform foam, stable remarkable effectiveness and wide applicability of compatibility with other auxiliary agents for oil fields, has specific commercial effects in actual sites, and has the advantages of low toxicity, high activity and no damage to stratum.
Detailed Description
The present application will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The application provides an ultralow surface tension high-performance foaming agent which comprises, by weight, 20% -30% of alkyl glycoside, 3% -10% of sodium cocoanut fatty acid alanine, 5% -10% of lauramidopropyl amine oxide, 1.0% -1.5% of cocoamidopropyl amine oxide, 5% -15% of dodecyl dimethyl amine oxide, 0.5% -2% of water-soluble organic silicon and 35% -60% of deionized water.
In the application, the preparation method of the high-performance foaming agent comprises the following steps,
step one: weighing raw materials according to a proportion, uniformly mixing a part of deionized water and sodium alanine of coconut oil fatty acid according to a proportion, adding the mixture into a reaction kettle, and heating the reaction kettle to 50 ℃ for maintaining;
step two: when the temperature of the reaction kettle is raised to 50 ℃, starting to add alkyl glycoside, lauramidopropyl amine oxide, cocamidopropyl amine oxide, dodecyl dimethyl amine oxide, water-soluble organic silicon and the rest deionized water, controlling the stirring speed, continuously stirring at a low speed, and stirring for 1-2h to obtain a mixed solution;
step three: and adding a PH regulator according to the pH value of the solution, standing and cooling to obtain the high-performance foaming agent.
In this embodiment, the sodium alanine is an ionic amino acid surfactant; the alkyl glycoside is an alkyl polysaccharide glycoside with a sugar unit of more than or equal to 2 in a complex glycoside compound synthesized by glucose and fatty alcohol; the cocamidopropyl amine oxide is an amphoteric surfactant, and has good compatibility with anionic, cationic, zwitterionic and nonionic surfactants; the dodecyl dimethyl amine oxide is a special amphoteric surfactant; in the third step, the PH value regulator is 5% acetic acid solution, and the regulating range is 6.0-8.0; the main chain of the water-soluble organosilicon is very flexible, and the intermolecular acting force is much weaker than that of hydrocarbon, so that the viscosity is lower than that of hydrocarbon with the same molecular weight, the surface tension is weak, the surface energy is small, and the foam stabilizing effect is good.
Embodiment one:
the foaming agent for the oil field comprises 25KG of alkyl glycoside, 10KG of lauramidopropyl amine oxide, 1KG of cocoamidopropyl amine oxide, 10KG of sodium alanine, 10KG of dodecyl dimethyl amine oxide, 1KG of water-soluble organic silicon and 43KG of deionized water. The sum of the components is 100KG.
The method comprises the following steps:
adding the 33KG deionized water and 10KG sodium cocoanut fatty acid alanine which are weighed according to the mass percent into a reaction kettle, heating to 50 ℃, when the temperature of the reaction kettle is raised to 50 ℃, starting to add 25KG alkyl glycoside, 10KG lauramidopropyl amine oxide, 1KG cocoamidopropyl amine oxide, 10KG dodecyl dimethyl amine oxide, 1KG water-soluble organic silicon and 10KG residual deionized water, controlling the stirring speed, continuously stirring at a low speed, and stirring for 1-2h to obtain a mixed solution. Then adding PH regulator solution according to the pH value of the solution, and cooling to room temperature to obtain the foaming agent.
Table 1 example finished product test results
Appearance of Transparent homogeneous liquid
PH 6.9
Density, g/cm 3 0.988
Compatibility with fracturing No sediment and no flocculation
Surface tension, mN/m (distilled water, 25 ℃, 0.5%) 23.9
Foaming ratio% 98
Half-life, s (distilled water, 25 ℃, 0.5%) 698
Example two
The foaming agent for the oil field comprises 25KG of alkyl glycoside, 8KG of lauramidopropyl amine oxide, 1.2KG of cocoamidopropyl amine oxide, 8KG of sodium alanine of cocofatty acid, 9KG of dodecyl dimethyl amine oxide, 1.3KG of water-soluble organosilicon and 47.5KG of deionized water. The sum of the components is 100KG.
The method comprises the following steps:
adding the weighed deionized water 37.5KG and the coconut fatty acid sodium alanine 8KG into a reaction kettle according to the mass percentage, heating to 50 ℃, when the temperature of the reaction kettle is raised to 50 ℃, starting to add the alkyl glycoside 25KG, the lauramidopropyl amine oxide 8KG, the cocoamidopropyl amine oxide 1.2KG, the dodecyl dimethyl amine oxide 9KG, the water-soluble organosilicon 1.3KG and the rest deionized water 10KG, controlling the stirring speed, continuously stirring at a low speed, and stirring for 1-2h to obtain a mixed solution. Then adding PH regulator solution according to the pH value of the solution, and cooling to room temperature to obtain the foaming agent
Table 2 example 2 results of the final test
Appearance of Transparent homogeneous liquid
PH 7
Density, g/cm3 1.003
Compatibility with fracturing No sediment and no flocculation
Surface tension, mN/m (distilled water, 25 ℃, 0.5%) 23.4
Foaming ratio% 96
Half-life, s (distilled water, 25 ℃, 0.5%) 662
Example III
The foaming agent for the oil field comprises 24KG of alkyl glycoside, 6KG of lauramidopropyl amine oxide, 1.5KG of cocoamidopropyl amine oxide, 5KG of cocofatty acid sodium alanine, 8KG of dodecyl dimethyl amine oxide, 1.5KG of water-soluble organic silicon and 54KG of deionized water. The sum of the components is 100KG.
The method comprises the following steps:
adding 44KG of deionized water and 5KG of sodium cocoanut fatty acid alanine which are weighed according to the mass percentage into a reaction kettle, heating to 50 ℃, when the temperature of the reaction kettle is raised to 50 ℃, starting to add 24KG of alkyl glycoside, 6KG of lauramidopropyl amine oxide, 1.5KG of cocoamidopropyl amine oxide, 8KG of dodecyl dimethyl amine oxide, 1.5KG of water-soluble organosilicon and 10KG of residual deionized water, controlling the stirring speed, and continuously stirring at a low speed for 1-2h to obtain a mixed solution. Then adding PH regulator solution according to the pH value of the solution, and cooling to room temperature to obtain the foaming agent
Table 3 example three finished product test results
Appearance of Transparent homogeneous liquid
PH 7
Density g/cm 3 1.044
Compatibility with fracturing No sediment and no flocculation
Surface tension, mN/m (distilled water, 25 ℃, 0.5%) 23.1
Foaming ratio% 91
Half-life, s (distilled water, 25 ℃, 0.5%) 622
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the above-described embodiments. It will be understood by those skilled in the art that the foregoing and various other changes, modifications and variations can be made in the present application without departing from the spirit and scope of the application, and it is intended that the application is limited only to the preferred embodiments of the application.

Claims (7)

1. An ultra-low surface tension high performance foaming agent is characterized in that: comprises the following components, by weight, 20% -30% of alkyl glycoside, 3% -10% of sodium cocoanut fatty acid alanine, 5% -10% of lauramidopropyl amine oxide, 1.0% -1.5% of cocoamidopropyl amine oxide, 5% -15% of dodecyl dimethyl amine oxide, 0.5% -2% of water-soluble organic silicon and 35% -60% of deionized water.
2. The method for preparing the high-performance foaming agent as claimed in claim 1, which is characterized in that: comprises the following steps of the method,
step one: weighing raw materials according to a proportion, uniformly mixing a part of deionized water and sodium alanine of coconut oil fatty acid according to a proportion, adding the mixture into a reaction kettle, and heating the reaction kettle to 50 ℃ for maintaining;
step two: when the temperature of the reaction kettle is raised to 50 ℃, starting to add alkyl glycoside, lauramidopropyl amine oxide, cocamidopropyl amine oxide, dodecyl dimethyl amine oxide, water-soluble organic silicon and the rest deionized water, controlling the stirring speed, continuously stirring at a low speed, and stirring for 1-2h to obtain a mixed solution;
step three: and adding a PH regulator according to the pH value of the solution, standing and cooling to obtain the high-performance foaming agent.
3. The method for preparing the high-performance foaming agent according to claim 2, wherein: the coconut fatty acid sodium alanine is an ionic amino acid surfactant.
4. The method for preparing the high-performance foaming agent according to claim 2, wherein: the alkyl glycoside is alkyl polyglucoside with a sugar unit of more than or equal to 2 in complex glycoside compounds synthesized by glucose and fatty alcohol.
5. The method for preparing the high-performance foaming agent according to claim 2, wherein: the cocamidopropyl amine oxide is an amphoteric surfactant, and has good compatibility with anionic, cationic, zwitterionic and nonionic surfactants.
6. The method for preparing the high-performance foaming agent according to claim 2, wherein: the dodecyl dimethyl amine oxide is a special amphoteric surfactant.
7. A process for the preparation of a high performance blowing agent according to claims 2-6, characterized in that: in the third step, the PH value regulator is 5% acetic acid solution, and the regulating range is 6.0-8.0.
CN202310307085.7A 2023-03-27 2023-03-27 Foaming agent with ultralow surface tension and high performance and preparation method thereof Pending CN116751572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310307085.7A CN116751572A (en) 2023-03-27 2023-03-27 Foaming agent with ultralow surface tension and high performance and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310307085.7A CN116751572A (en) 2023-03-27 2023-03-27 Foaming agent with ultralow surface tension and high performance and preparation method thereof

Publications (1)

Publication Number Publication Date
CN116751572A true CN116751572A (en) 2023-09-15

Family

ID=87955902

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310307085.7A Pending CN116751572A (en) 2023-03-27 2023-03-27 Foaming agent with ultralow surface tension and high performance and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116751572A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796702A (en) * 1984-06-25 1989-01-10 Petrolite Corporation Multipurpose aqueous foamer
US20060260815A1 (en) * 2005-04-06 2006-11-23 Dahanayake Manilal S Method of recycling fracturing fluids using a self-degrading foaming composition
CN102504788A (en) * 2011-10-25 2012-06-20 中国石油天然气股份有限公司 Foaming agent suitable for oil-field development
CN104830307A (en) * 2015-04-24 2015-08-12 安科顺泰能源科技(北京)有限责任公司 Organosilicone polyether emulsion type defoaming agent for fracturing fluid and preparation method thereof
CN105542741A (en) * 2016-01-19 2016-05-04 长江大学 Temperature-resistant foam-stabilizing type low interfacial tension foaming agent and preparation method thereof
CN106433597A (en) * 2016-09-14 2017-02-22 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Foaming drainage agent, preparation method and application
CN106587716A (en) * 2017-01-06 2017-04-26 中国铁道科学研究院铁道建筑研究所 Organosilicone modified foaming agent and application thereof in foamed light soil
CN108570318A (en) * 2017-03-13 2018-09-25 中国石油化工股份有限公司 A kind of oil field CO2Foam foam liquid composition and preparation method thereof
US20210198555A1 (en) * 2019-12-31 2021-07-01 Advansix Resins & Chemicals Llc Surfactants for oil and gas production
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796702A (en) * 1984-06-25 1989-01-10 Petrolite Corporation Multipurpose aqueous foamer
US20060260815A1 (en) * 2005-04-06 2006-11-23 Dahanayake Manilal S Method of recycling fracturing fluids using a self-degrading foaming composition
CN102504788A (en) * 2011-10-25 2012-06-20 中国石油天然气股份有限公司 Foaming agent suitable for oil-field development
CN104830307A (en) * 2015-04-24 2015-08-12 安科顺泰能源科技(北京)有限责任公司 Organosilicone polyether emulsion type defoaming agent for fracturing fluid and preparation method thereof
CN105542741A (en) * 2016-01-19 2016-05-04 长江大学 Temperature-resistant foam-stabilizing type low interfacial tension foaming agent and preparation method thereof
CN106433597A (en) * 2016-09-14 2017-02-22 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Foaming drainage agent, preparation method and application
CN106587716A (en) * 2017-01-06 2017-04-26 中国铁道科学研究院铁道建筑研究所 Organosilicone modified foaming agent and application thereof in foamed light soil
CN108570318A (en) * 2017-03-13 2018-09-25 中国石油化工股份有限公司 A kind of oil field CO2Foam foam liquid composition and preparation method thereof
US20210198555A1 (en) * 2019-12-31 2021-07-01 Advansix Resins & Chemicals Llc Surfactants for oil and gas production
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
贾印霜;范振忠;刘庆旺;孙傲;尉小明: "磺基甜菜碱耐高温起泡剂的合成与性能评价", 精细石油化工进展, vol. 21, no. 4, pages 129 - 5 *

Similar Documents

Publication Publication Date Title
CN107513383B (en) Low-concentration guanidine gum fracturing fluid for gas well
CN109609106B (en) Oil well cementing early strength agent for low-temperature production area and preparation method thereof
GB2063840A (en) Foamed high viscosity aqueous inorganic acid solutions
CN111925785B (en) Oil-resistant adsorption-resistant low-tension foam oil displacement agent and preparation method and application thereof
CN105198269B (en) A kind of low temperature resistant earth pressure balanced shield, EPBS foaming agent and preparation method and application
CN111732947B (en) Efficient foaming agent for fracturing and preparation method thereof
CN114437703B (en) Efficient composite foaming cleanup additive for fracturing and preparation method thereof
CN102295919A (en) High efficient fluoride-free cleanup additive used for acidifying
CN115521771A (en) Supermolecule-based environment-friendly foam scrubbing agent and application thereof
CN113652222B (en) Temperature-resistant salt-tolerant anionic surfactant clean fracturing fluid and preparation method thereof
CN113429953B (en) Foam scrubbing agent and preparation method and application thereof
CN111039819A (en) Temperature-resistant salt-tolerant viscoelastic surfactant and preparation method and application thereof
CN116751572A (en) Foaming agent with ultralow surface tension and high performance and preparation method thereof
CN113956856A (en) Nano multifunctional cleanup additive for oil field drilling fluid and preparation method thereof
CN102898640B (en) Preparation method of octafluoropentyl alcohol polyoxyethylene ether
CN110922956B (en) Unsaturated long-chain-table active agent fracturing fluid and preparation and gel breaking methods thereof
CN114350335B (en) Foaming agent for oil field and preparation method thereof
CN111574988A (en) Guar gum clean fracturing fluid for oil well and preparation method thereof
CN111088019B (en) Reinforced high-temperature-resistant foam drainage agent composition, preparation method thereof and gas production method
CN108239532B (en) Slickwater cleanup additive for shale fracturing, preparation method and application
CN113621358B (en) Viscosity-reducing oil displacement agent for extra-thick crude oil and preparation method and application thereof
CN110643344A (en) Double-retarding emulsifying self-generated acid and preparation method thereof
CN111088011B (en) Composite surfactant for improving crude oil recovery ratio and preparation method and application thereof
CN113149507A (en) Preparation method of comprehensive slump-retaining polycarboxylate superplasticizer
CN107512864B (en) Low-sensitivity foam concrete foaming agent and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination