Micro-mechanism for forming Remaining oil

摘要

Using micro-model simulation technique, this paper studied the micro-mechanism of remaining oil formation, covering the forming process in porous-throat structure an vertical blind pore as well as in heterogeneous reservoir. According to distribution and mechanisms of remaining oil formation, some principles can be used for the prediction of the enrichment location of remaining oil. And also some routes and methods for development remaining oil are provided here, too.