Gravity assisted displacement method and application thereof
作者： Zhao Gufan , Sun Jian , Li Jing , Guang Xinjun , Si Na
DOI:
关键词: Petroleum engineering 、 Gravity (chemistry) 、 Displacement method 、 Oil sands 、 Degree (temperature) 、 Asphalt 、 Environmental science 、 Petroleum reservoir
摘要: The invention relates to the field of oil exploitation, in particular an exploitation method heavy and/or sand. includes steps 1, injecting steam into injection well; 2, after a chamber is stably formed and reservoir pressure uniformly distributed, adding surfactants injected recovering simultaneously; 3, according monitored decrease degree real-time recovery, selecting whether stop with step asphalt solvents containing well 4, recovery rises required level again, stopping undissolving agents 5, temperature, repeat 1 3 4.
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