一种油田采油及酸化用多功能解堵剂及其制备方法
By preparing a multifunctional unblocking agent, and using modified additives to reduce interfacial tension and modified silica to fill cavities, the problem of poor unblocking effect under high temperature environment was solved, thus improving oil well productivity and water injection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI HUATIAN ENERGY TECH CO LTD
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing unblocking agents become less effective at high temperatures, making it difficult to effectively treat complex blockages, leading to decreased oil well productivity and increased injection pressure in water injection wells.
A monofunctional cage-type silsesquioxane was generated by reacting 1,3,5,7,9,11,14-heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-in-3,7,14-triol with trichlorosilane. This was further reacted with acrylic acid and modified silica to prepare a modified additive, which reduced interfacial tension and improved the wettability of rock surfaces. Combined with nano-silica to fill surface cavities, a dense network structure was formed.
It significantly improves the permeability recovery rate, enhances the mechanical strength and shear resistance of the oil displacement system, ensures acid permeation effect, and adapts to complex clogging environments.
Smart Images
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