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Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions
Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions
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机译:使用衍生自α-烯烃的烷基芳基磺酸盐表面活性剂和蜡质原油的采油方法
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摘要
An oil recovery process is disclosed which uses a particular class of alkylaryl sulfonate surfactants. The surfactants are derived from an alpha-olefin stream having a broad distribution of even carbon numbers ranging from 12 to 58. The olefin stream is reacted with aromatic feedstock, such as benzene, toluene, xylene, or a mixture thereof to form alkylates, and then reacted with SO3 to form sulfonic acids. The resulting surfactant has high solubilization and ultra-low interfacial tension with crude oils, especially waxy crude oil, having a broad distribution of carbon numbers.
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