一种活性纳米粒子、压裂驱油剂及其应用

By preparing active nanoparticles with small particle size and good hydrophilic and oleophilic properties and compounding them with surfactants, a high-temperature and high-salt resistant fracturing oil displacement agent was formed, which solved the problem of poor oil displacement effect in the exploitation of low-permeability oil reservoirs and improved the recovery rate and oil displacement efficiency.

CN120290160BActive Publication Date: 2026-07-17CHINA UNIV OF GEOSCIENCES (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (BEIJING)
Filing Date
2025-03-31
Publication Date
2026-07-17

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Abstract

本发明提供了一种活性纳米粒子、压裂驱油剂及其应用，属于油藏开采技术领域。所述活性纳米粒子是通过先将含巯基的第一硅烷偶联剂与过氧化氢反应，再与含苯基、丙基或辛基的第二硅烷偶联剂反应得到。所述压裂驱油剂包括活性纳米粒子、阴离子或阴‑非离子表面活性剂和水。本发明提供的活性纳米粒子粒径小，具有良好的分散性能、两亲性、界面活性和降低油水界面张力的能力；基于该活性纳米粒子构筑的压裂驱油剂具有耐高温高盐、润湿反转、渗吸排油能力强、减阻性能好的优点，能够减小注入压力，改善波及效率，提高压驱驱油效果，提高采收率。
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