Abstract: For the complex clastic reservoir in Tahe Oilfield,conventional logging interpretation causes multi-solutions.In order to provide rapid and accurate evaluation on the reservoirs,we introduced nuclear magnetic resonance (NMT) and MDT logging.By applying NMR and MDT on the actual data of several wells,we discussed the application results from the identification of low-resistivity oil & gas reservoirs,the evaluation of low-porosity & low-permeability reservoir and the discovery on new potential formations and complex reservoirs.The results indicate that NMR and MDT are good for the evaluation of the complex clastic reservoirs in Tahe Oilfield,which improves the accuracy of logging interpretation.