Abstract:

By making use of log data and geological information, analyzing lithologic characteristics, the physical and electric behavior, the oil-gas bearing potential of reservoir rocks as well as their relations with each other, it is possible to establish the corresponding relations between log data and geological information. According to these relations, every well and every formation was analyzed and calculated so as to obtain precise reservoir parameters of the target formation in a block. The most important parameters include: shallness, mineral ingredients in the rock framework, the mean value of grain size, porosity, permeability .oil-saturation and the available thickness of the reservoir. The vertical andplanar distribution of the parameters reveals directly the variation property of reservoir's heterogeneity, porosity and permeability as well as oil and gas distribution.