Combination solvent-noncondensible gas injection method for recovering petroleum from viscous petroleum-containing formations including tar sand deposits
作者： Joseph C. Allen , David A. Redford
DOI:
关键词: Energy source 、 Compounds of carbon 、 Methane 、 Petroleum engineering 、 Solvent 、 Petroleum 、 Carbon dioxide 、 Chemistry 、 Fossil fuel 、 Oil sands
摘要: Petroleum may be recovered from viscous petroleum-containing formations including tar sand deposits by injecting into the formation a solvent which is liquid at conditions and simultaneously therewith substance will remain totally gaseous pressure temperature existing within reservoir. The presence of noncondensible gas in being injected prevents impremeable bitumen bank blocks further flow fluids through formation. should essentially unreactive with order to obtain desired benefits. Examples suitable gases for practice this invention include methane, ethane, nitrogen, carbon dioxide, mixtures thereof.
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