一种刷状结构阳离子环保型酸化压裂用酸液稠化剂的制备方法及应用
By grafting high-temperature resistant and salt-resistant monomers onto the chitosan backbone to form a brush-like structure, the acid fracturing thickener has solved the problems of high cost and environmental pollution of traditional thickeners, achieving efficient oil and gas well production enhancement and environmental protection effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SNF CHINA FLOCCULANT
- Filing Date
- 2023-12-27
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional acid fracturing processes suffer from high costs and severe environmental pollution, and existing thickeners are unstable under high temperature and salt water conditions.
This brush-structured cationic environmentally friendly acid fracturing thickener uses high-temperature resistant and salt-resistant monomers grafted onto the chitosan backbone to form a polymer structure, thereby improving its high-temperature resistance and salt resistance, and enabling it to biodegrade under acidic conditions.
It effectively reduces formation resistance, increases oil and gas well production, reduces environmental pollution, is suitable for different formations, and maintains good viscosity and cationicity under high-temperature brine conditions.
Smart Images
Figure CN117801168B_ABST