A method for preparing an amphiphilic Ti3C2T x flexible nanosheet oil displacement agent

By introducing hydrophobic segments onto the surface of Ti3C2Tx nanosheets, amphiphilic nanosheets were prepared, solving the problem of low interfacial contact efficiency in improving oil recovery using traditional nanomaterials and achieving highly efficient oil recovery.

CN120966446BActive Publication Date: 2026-01-27SOUTHWEST PETROLEUM UNIV
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Patent Information

Application Number
CN202511490571.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-01-27
Estimated Expiration
2045-10-17

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Abstract

The application belongs to the technical field of oil and gas exploitation and oil field chemistry, and relates to a preparation method of amphiphilic Ti3C2T x x-based flexible nanosheet oil displacement agent. The application takes Ti3AlC2 as raw material, uses a modified acid (hydrochloric acid and lithium fluoride) etching method to prepare single-layer / few-layer flexible Ti3C2T x x-based nanosheet, and further uses a hydrophobic silane coupling agent to chemically modify the same to prepare an amphiphilic Ti3C2T x x-based flexible nanosheet. The prepared amphiphilic Ti3C2T x x-based flexible nanosheet has the abilities of changing oil-water interface properties and "shoveling" oil, is suitable for water injection development operation in oil and gas fields, and can effectively improve the oil recovery rate.
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Citation Information

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