Research Of The TNB Structure Of Carbonate Reservoir Logging Methods

On the back ground of TNB belt Marine carbonate reservoir in north-east area of Sichuan, this thesis uses local well logging material to start the research of Identification of reservoir gas-bearing. Therefore, the gas-water recognition pattern of reservoir can be established.The first step is to standardize the well logging data and homing core, then the well logging parameter computation model, which suits to the research section of north-east area of Sichuan, has been construed. Based on the Core analysis data and test data of Marine carbonate, the mineral content, Porosity, Permeability and Water saturation have been calculated accurately. A set of Marine carbonate reservoir parameter computation model which suit the TNB belt of north-east area of Sichuan and near by area has been established successfully. The threshold parameter of reservoir can also been verified. The conclusion about the lower limit standard of Marine carbonate reservoir of TNB belt in north-east area of Sichuan are as follows: the Porosity is 1.6%, the water saturation is 50%. The evaluation criteria of marine carbonate reservoir for TNB belt in north-east area of Sichuan and near by area has been settled. On the basis of previous work, this thesis using some math algorithms like Fuzzy Clustering to realize the automatic identification, partition, vertical identification of lithology, so as to lay the foundation for the horizontal distribution. The prediction model of fluid identification has been established. This thesis used resistivity and porosity Intersection method, normal probability distribution law and shear wave velocity method to realize fluid identification.