Study on Characteristics of Phase Permeability Curve of Xingbei Development Zone During Extra High Water Cut Period

The relative permeability curve is an important basic data for the preparation and dynamic analysis of oilfield development ( adjustment ) schemes. Due to different types curves in water cut stages, there a large deviation prediction indexes ultra-high stage according early development. In order study change process, based on morphological characteristics 118 28 coring wells Xingbei area after more than 50 years injection development, influence multiple curve, long-term average pore radius, changes characteristic parameters entering were studied, correction method oil phase stages was proposed better reflect whole process It provides basis accurately predicting index oilfield.