CARBON-DIOXIDE-RESPONSIVE SELF-THICKENING INTELLIGENT FLUID BASED ON SUPRAMOLECULAR SELF-ASSEMBLY

Disclosed is a carbon-dioxide-responsive self-thickening intelligent fluid based on supramolecular self-assembly. The carbon-dioxide-responsive self-thickening intelligent fluid comprises a Gemini surfactant, a single-chain amide molecule having a tertiary amine head group and water, wherein the Gem...

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Bibliographic Details
Main Authors XIONG, Chunming, XIE, Yongjun, PENG, Kang, YANG, Haiyang, SHAO, Liming, WEI, Falin, ZENG, Zhihui
Format Patent
LanguageEnglish
French
German
Published 30.11.2022
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Summary:Disclosed is a carbon-dioxide-responsive self-thickening intelligent fluid based on supramolecular self-assembly. The carbon-dioxide-responsive self-thickening intelligent fluid comprises a Gemini surfactant, a single-chain amide molecule having a tertiary amine head group and water, wherein the Gemini surfactant and the single-chain amide molecule having a tertiary amine head group are self-assembled to form a vesicle structure dispersed in water, with a hydrophilic head group being located outside and a hydrophobic tail group located inside. The method for preparing the carbon-dioxide-responsive self-thickening intelligent fluid of the present invention is simple, the injection viscosity is low, and the fluid is converted into a gel when encountering carbon dioxide, so that the viscosity is greatly increased, thereby effectively solving the problems that when a carbon dioxide gas drive is used to enhance recovery in a low-permeability oil reservoir, channeling flow of the gas occurs along local hypertonic channels, and of a substantially reduced swept volume caused thereby, etc.
Bibliography:Application Number: EP20210800686