Abstract: This paper summarizes three fundamental characteristics of percolation in water drive conglomerate reservoir, Karamay oilfield based on laboratory experiment, field test, outcrop test, production test, reservoir simulation, and static and dynamic data, i. e. atypical flow through porous media； nonuniform Mloose network-non-networkflow within pore space: velocity sensitivity occurs in the water drive process, significantly affecting production results. The above characteristics can be used to distinguish conglomerate reservoir from typical porous reservoir (sandstone reservoir, etc.).

Key words: Karamay oilfield, Conglomerate reservoir, Reservoir, Water drive, Percolation