Adjustment method and understanding of water-cut recovery period in polymer injection block

Abstract

Taking an injection station in polymer injection block (BLOCK A) as an example, this paper proposed a series of measures such as stratification polymer injection and regional overall profile control to improve the development effect and further enhance the final recovery factor of the block in view of the problems of low injection pressure in individual areas, profile in thrust and high comprehensive water cut of produced Wells in the block. It provides some basis and reference for production and development of other polymer injection blocks.