Development of movable gel system and mechanism analysis

Movable gel profile controls is one of the important technologies in enhancing oil recovery in old oil fields with high water cut.In this paper, based on large amounts of data research and analysis of the experimental results, from a technical development point of view,a more systematic summary of the movable gel system current development situation has been made. The comparative study of old and new gel system shows that movable gel system can bock large pores using its own select,overcome the Jamin effect,and " Amoeba" unique features, which can achieve " closure- Breakthrough-migration-and then plugging" of the displacement process in the deep reservoir , to achieve " far transfer a long drive, Intermittent Flooding" effect of the continued increase of oil. Also it pointed out that Movable gel profile control technology in the new system need to be deepen and perfect in the aspects of evaluation criteria, mechanism and description, numerical model and the software development and relevant supporting technologies such as integrated application,which is also available in the future development of movable gel profile control technology.