The Application and Analysis of Slug Test on Determining the Permeability Parameters of Fractured Rock Mass

Based on the proposed calculation method for determining different dip angle fracture permeability coefficients derived from well flow vibration equation and self-developed slug test system, research in a field fractured rock mass was carried out based underground water sealed cavern project of National Huangdao Petroleum Reserve. The formation lithology site granite gneiss, fractures were not developed, which is conducive to tests permeability. On basis obtaining geological information boreholes by using comparative segmented conventional pressure out. results show that system has good accuracy applicability coefficient, equivalent coefficient tensor, more convenient efficient than other methods.