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With the continued development of the oil field , the overall moisture content increased exploitation of the value of the original favorable area decreased , the overall development of the difficulty of the reservoir increases , due to changes in the hydrodynamic conditions and parameters of fluid properties of the original oil-water transition zone distribution a larger impact , it is necessary to re- understanding of the oil - water transition zone of the remaining oil distribution and development of value . In this paper, the oil-water transition zone formation mechanism is discussed in detail , including fluid properties , reservoir heterogeneity , stratum structure , dynamic development conditions and other factors remaining oil distribution of oil-water transition zone , and screened out the main influencing factors ; research within the area of the transitional nature of the fluid and electrical , oil relationship reservoir standard redefinition of produced oil and water illustrated ; typical unit of oil-water transition zone development analysis method based on reservoir engineering , water flooding effect evaluation , water flooding recovery forecast and Note connectivity mining research ; With numerical reservoir simulation , waterflood history matching , area water flooding out of the situation , the flooding situation and figure out what the waterflood residual oil distribution law . Considering the technical and economic adaptability, screened for tapping the potential favorable areas , using the numerical simulation of remaining oil re-understanding , and the development of technology policy research , and ultimately achieve better development results , tapping the potential of old oil fields have a certain sense, a certain reference and guidance , technical personnel engaged in the reservoir development .
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