... dramatically from level to level so, the density porosity can not be estimate. Therefore, only density-neutron porosity cross plot was constructed for the perforated interval of old wells. However, density-neutron porosity cross plot has ability to discernment Miocene carbonate quality. Fig.2 shows density...

... fluid typing from NMR Relaxation and Diffusion maps to quantify small volumes of gas present in the water zone. This analysis enables us to calculate the fluids composition in the invaded zone and to improve the accuracy of density porosity, even when LWD and Wireline logs are combined. We also show how...

... is the matrix density, ρ is the density log measurement and ρ fl is the density of the fluid in the pore space of the zone investigated by the density tool and l d is the log-derived density porosity. Abstract Typical petrophysical deliverables for volumetric and modeling purposes are net reservoir...

... Abstract The constant compromise between oil production and reserves requires differentiating gas from oil. For the detection of gas we have used the density porosity vs. neutron porosity plots, including all the environmental correction processes and the influence of the clay content...

... analysis fractured interval moki formation frct density porosity well logging spe 64408 aperture quantification image log density-compressional sonic combination sonic combination sonic log fracture porosity upstream oil & gas core data calibration image log data toka-1 fracture...