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Method for recording zones on a stratified medium or the interface of a fluied situated within the medium and a flushing fluid which runs in a fixed manner
Method for recording zones on a stratified medium or the interface of a fluied situated within the medium and a flushing fluid which runs in a fixed manner
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机译：记录分层介质上的区域或位于介质内的流体与以固定方式流动的冲洗流体的界面的区域的方法
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摘要
The invention relates to a method for determining the zones of a stratified porous medium whose physical properties are known, wherein the front or interface between fluids in place and injected flushing fluids moves in a stationary manner, without using a complete flow simulation. Starting from an a priori defined front form which separates two zones of uniform saturation, assumed to have a stationary displacement, the pressure field is determined independently in each zone. The pressure jump on either side of the front is then evaluated for any point of the interface. If it is zero, the form of the front is such that it can move in a stationary manner in the medium. If the pressure jump is not zero, the user deforms the interface and resumes the process until a stationary form is obtained. This process may not converge. In this case, we consider that a stationary front cannot form through the total thickness of the medium and the medium is divided so as to seek solutions in intermediate zones.
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