Analysis on Preferred Flowing Path in Shallow Water Delta Front Based on Reservoir Architecture

摘要

1 Introduction The shallow water delta reservoir in South Wen 79Block is in the stage of high water-cut stages,and is still on the rise.The degree of recovery is low,preferredflowing path is developed and surplus oil is generally distributed with local enrichment(Zhang,2009).The potential of surplus oil is considerable,while the difficulty is also great.And the basis of effective tapping