一种油气井用耐高盐耐高温示踪剂的制备方法
By combining modified carbon quantum dots with organosilicon-based crosslinked polymer coatings, the problems of fluorescence quenching and coating degradation of quantum dot tracers in high-temperature and high-salt environments are solved, enabling long-term accurate monitoring of oil and gas wells and adapting to existing fracturing construction processes.
CN122037908BActive Publication Date: 2026-07-17KARAMAY CHENGUANG CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KARAMAY CHENGUANG CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
Smart Images
Figure CN122037908B_ABST
Abstract
本发明属于油气井生产监测技术领域，公开了一种油气井用耐高盐耐高温示踪剂的制备方法。本发明通过对碳量子点进行两性离子修饰与环氧基改性，复配耐高温交联聚合物并构建梯度缓释涂层结构，将复合涂层均匀包覆于压裂支撑剂表面，经真空预固化与梯度升温固化制得目标示踪剂。该方法制备的示踪剂耐温耐盐性能稳定，涂层附着力与结构完整性优异，可在地层流体作用下持续稳定释放示踪信号，有效提升监测精度与使用寿命，能够满足深层高温高盐油气藏长期产出剖面监测需求，与现有压裂施工工艺适配性良好，具备较高的工程应用价值。
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Preparation method of silicon-based quantum dot tracer
CN119823755A
CO2 thickening-downmixing-tracing nano carbon needle as well as preparation method and application thereof
CN120290176A