作者: Jian Hou , Zhenquan Li , Sunkang Zhang , Xulong Cao , Qingjun Du
DOI: 10.1007/S11242-008-9330-9
关键词:
摘要: The microscopic flow mechanism of polymer flooding was examined using an industrial microfocus computerized tomography system. On the basis scanned slices acquired in process water and flooding, three-dimensional visualization oil distribution different conditions achieved with a series image processing methods, including pre-processing, interpolation, segmentation, construction, which are effective techniques for both qualitative description quantitative characterization mechanism. This study has confirmed suggestion that displacement efficiency is higher than effectively revealed recovery flooding. water/oil mobility ratio improved after resulted break “equilibrium” field formed during redistribution regions saturation. remaining flushed out as result redirection viscoelastic effect Compared to increased sweep well efficiency, thereby ultimate recovery.