Enhanced Oil Recovery in Low permeability Reservoirs

摘要

1. To improve a method of hydrocarbon recovery in low-permeability deposits, the first is to provide an underground reservoir composed of one or more hydrocarbons and water therein, and a drilling hole with smooth communication with the underground reservoir. Then?An essentially anhydrous component is injected into a reservoir through drilling, in fact, the essentially anhydrous component includes carbon dioxide and one or more surface active components. This composition is suitable for foaming when in contact with water in the deposit. This method often leads to reducing the corrosion of drilling hole and hydrate formation, reducing the digestion of reservoir and improving the purification efficiency of carbon dioxide, which is more than the traditional method.