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Most oil fields in China are found incontinantal sedimentary basin. Inthe absence of active aquifer, suchfields are developed by waterinjection at the early developmentstage.However, serious vertical and lateralheterogeneity in formation has resulted in a
In the absence of active aquifer, suchfields are developed by waterinjection at the early developmentstage.However, serious vertical and lateralheterogeneity in formation has resulted in a