Reservoir Characterization And Fluid Identification Of The Nantun And Tongbomiao Formation Of Tamsag Basin Based On Logging Data

Nantun and Tongbomiao Formation of Tamsag basin has a high content of tuffaceous, large differences in pore structure characteristics, variation in physical properties of reservoir characteristics. Use logging data for reservoir characterization and fluid identification difficult. In view of this, the rock physics experiments, coring, well testing, on the basis of logging data, logging geology research ideas using the lithology, physical properties and other characteristics of the study area, the logging data extracted recognizable six kinds of major lithologic logs response characteristics, namely mudstone, tuffaceous sandstone, tuff, sandstone, polymictic conglomerate, tuffaceous polymictic conglomerate, and the establishment of major lithologic reservoir lithology logs corresponding identification plate. Experimental data using core, core porosity and select the best correlation of the neutron, density, sonic three curves stratified group, points out the corresponding regression rock porosity formula. After exploratory analysis of the impact of logging data tuffaceous, hierarchical group, district, sub-lithologies established Nantun and Tongbomiao Formation of Tamsag basin fluid properties log interpretation chart.