Invention Grant
US09109443B2 Formulation and method of use for exploitation of heavy and extra heavy oil wells 有权
重油和特重油井开采的配方和使用方法

Formulation and method of use for exploitation of heavy and extra heavy oil wells
Abstract:
A combined injection and production method includes establishing a production well and an injection well into a hydrocarbon-bearing formation; introducing a mixture of a surfactant, a co-surfactant and a carrier fluid into each of the production well and the injection well so that the mixture flows into porous media surrounding the production well and the injection well; holding the mixture in the porous media surrounding the production well in the presence of water for a period of time sufficient to form a water film on surfaces of the porous media surrounding the production well; and injecting an injection fluid into the injection well while producing from the production well, whereby hydrocarbons flow from the porous media around the injection well toward the production well.
Information query
Patent Agency Ranking
0/0