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۱STUDY OF FRACTURED BLOCKS IN AN OILFIELD – HEMOGENEOUS
نویسنده(ها): ، ،
اطلاعات انتشار: اولین همایش ملی تکنیک های نوین در تجهیزات و مواد آزمایشگاهی صنعت نفت ایران، سال
تعداد صفحات: ۹
In this paper we perform dynamic imbibition simulations on a large scale homogenous fractured block. The purpose is to seek optimum conditions under which the oil recovery is maximal in a larger scale model. In order to do this, we consider 7 different cases with varying relative importanceof capillarity and viscous forces. The injections are all continuous. Various chemical solutions are injected. These include: water, polymer, surfactant, alkali, and different combinations of them. For convenience of simulation, even though this is not physically correct, alkali represents the wettability modifying agent, while the surfactant is the agent that lowers the IFT to ultra low values. Therefore, a simulation labeled AS indicates that the injected chemical solution lowers the IFT to ultra low values as well as alters the wettability from mixed–wet to water–wet. On the other hand, a simulation labeledASP does the above task as well as making the chemical solution viscous (polymer). The recovery curves are compared for each case number and appropriate profiles are demonstrated in order to understand the results<\div>
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