Research On Logging Evaluation Method Of Glutenite Reservoir Of Baikouquan Formation In Triassic Of Mahu Sag

With the development of the exploration technology and the gradual reduction of the discovery of the conventional reservoirs,the exploration and exploitation of the unconventional reservoir become the focus for the future development of petroleum industry. As a kind of lithologic reservoir, glutenite reservoir takes an important place in the unconventional reservoirs. For the complexity of lithology and strong heterogeneity of glutenite reservoir, it is difficult to calculate reservoir parameters. When using a common model to calculate glutenite reservoir parameters, the interpretation precision is low. Meantiome, it is difficult to distinguish effective and ineffective reservoir and identify fluid property. In a word, at home and abroad, logging evaluation of glutenite reservoir parameters, fuild identification and interpretation are all challenges to the exploration.Baikouquan reservoir in Mahu Triassic system belongs to the typical glutenite reservoir. Frist, this article researches characters of reservoir and their relationships. Research shows that glutenite's lithology is the important factor to control the reservoir development. Physical properties are controlled by lithology. The oiliness of reservoir is controlled by the reservoir physical properties. On the basis of core observation, the glutenite identification marks of lithology and lithofacies is summarized. Recognition method is established to identify lithology by using resistivity and density crossplot with the glutenite lithology identification chart as its finally result, which get a good practical effect.Second,with the "core scale logging" method, the reservoir parameter calculation model has been researched. The porosity, permeability and oil saturation models have been established and processed. The processing results of porosity, permeability and saturation show that the models with higher precision have good effect in practical application. Last,in order to identifying oil and water layer more conveniently and searching for engineering sweet heart efficiently, using the crossplot of apparent formation water resistivity and neutron-nuclear magnetic effective porosity to establish the fluid identification chart. By this way, the coincidence rate of recognition is better. Taken together, effectively combining logging and geological information related evaluation techniques established method for the exploration and development glutenite reservoir it provides logging basis, has better theoretical and practical value.