Preparation of multi-layer composite micro-nano filler for constructing hydrophilic environment of oil-repellent coating, oil-repellent coating and application thereof
By preparing multi-layered composite micro-nano fillers to construct hydrophilic and oleophobic coatings, the problem of oil agglomeration formation in high water-cut oil wells was solved, achieving stable oleophobic effect and resistance to mechanical damage in aquatic environments, suitable for high water-cut and low-temperature gathering and transportation conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-30
AI Technical Summary
In high water-cut oil wells, the formation of oil clumps under low-temperature conditions leads to deterioration of the produced medium's fluidity, increasing maintenance difficulty and equipment corrosion risk. Existing hydrophobic and oleophobic coatings lack stability and durability in high water-cut environments and are also costly.
Hydrophilic and oleophobic coatings are constructed by preparing multi-level composite micro- and nano-fillers. Micron-level fillers are etched and then combined with nano-level fillers, and combined with the deposition of hydrophilic macromolecules to form a multi-level protective oleophobic coating, which enhances the coating's resistance to mechanical damage and oleophobic effect.
It significantly improves the oleophobic properties of the coating in aquatic environments, reduces the adhesion between oil and the coating, enhances the coating's resistance to mechanical damage, is suitable for high water content and low temperature gathering and transportation conditions, and is easy to mass-produce and industrialize.
Smart Images
Figure CN122302620A_ABST