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1.发明授权公开(公告)号：US11802233B2
公开(公告)日：2023-10-31
申请号：US17433839
申请日：2020-10-29
发明人： Bin Ding , Chunming Xiong , Xiangfei Geng , Baoshan Guan , Falin Wei , Jingjun Pan , Baocheng Wu , Jingfeng Dong , Youguo Yan
CPC分类号： C09K8/584 , E21B43/16 , C09K2208/10
摘要： A permeability-enhancing flooding system for tight oil reservoirs and preparation and use thereof are disclosed. The permeability-enhancing flooding system is present in a state of oil-in-water droplet and composed of a surfactant, an oil-soluble substance and water, and has an outer phase that is an aqueous solution containing the surfactant, and an inner phase that is the oil-soluble substance; and the surfactant comprises one of nonionic gemini surfactants and anionic gemini surfactants, or a combination of two or more thereof. The preparation process for the permeability-enhancing flooding system is simple to operate, suitable for industrialized production, and low in overall cost, and has obvious application prospects in the field of tight oil reservoirs for an enhanced oil recovery.
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2.发明申请公开(公告)号：US20220145164A1
公开(公告)日：2022-05-12
申请号：US17433839
申请日：2020-10-29
发明人： Bin Ding , Chunming Xiong , Xiangfei Geng , Baoshan Guan , Falin Wei , Jingjun Pan , Baocheng Wu , Jingfeng Dong , Youguo Yan
摘要： A permeability-enhancing flooding system for tight oil reservoirs and preparation and use thereof are disclosed. The permeability-enhancing flooding system is present in a state of oil-in-water droplet and composed of a surfactant, an oil-soluble substance and water, and has an outer phase that is an aqueous solution containing the surfactant, and an inner phase that is the oil-soluble substance; and the surfactant comprises one of nonionic gemini surfactants and anionic gemini surfactants, or a combination of two or more thereof. The preparation process for the permeability-enhancing flooding system is simple to operate, suitable for industrialized production, and low in overall cost, and has obvious application prospects in the field of tight oil reservoirs for an enhanced oil recovery.
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