Features and logging evaluation of inter-salt non-sandstone reservoirs in Jianghan basin

Inter-salt non-sandstone is a special kind of reser-voirs in Jianghan basin. They are characterized by complex lithology, multiple types of reservoir space and severe heterogeneity, thus reservoir evaluation is very difficult. The features of this kind of reservoirs are analyzed by using basic data such as core and logging. In combination with the application of new logging technologies, such as imaging and NMR, several analytical methods are used to build interpretation models of this kind of reservoirs. Several interpretation software packages including Schlumberger's "P- package" are used to quantitatively interpret the parameters of inter - salt non - sandstone reservoirs with logging data. A set of logging evaluation methods is presented for the inter-salt non-sandstone reservoirs in salt lake in Jianghan basins. Real application in several wells shows that they are effective.