... Upstream Oil & Gas usbm wettability index wettability index wettability state well logging wettability condition water saturation permittivity wettability dielectric dispersion data textural model dielectric measurement stearic acid water phase tortuosity bimodal Introduction...

... depolarization factor log analysis dielectric dispersion data variation Soltrol wettability alteration wettability electrical property dielectric measurement stearic acid frequency range Upstream Oil & Gas wettability state complex dielectric permittivity mnparameter dielectric permittivity...

... Oil & Gas water saturation log analysis buah formation total porosity permittivity well logging buah reservoir porosity workflow saturation formation evaluation cementation factor reservoir core analysis lithology characteristic rock type permeability bitumen hydrocarbon...

... by borehole and invasion effects, and moderate accuracy making their interpretation complicated. Based on recent technology developments, a new device measuring both permittivity and conductivity at multiple frequencies has enabled petrophysicists to evaluate the petrophysical properties in various complex...

... Abstract Fully water saturated plugs were centrifuged in air using small capillary pressure steps. At each pressure step the low frequency (2 MHz) NMR and high frequency dielectric permittivity were measured. The centrifugal pressure steps were incremented at 1 psi so as to determine the water...

... of the studied samples, including pyrite. Pyrite has an obvious effect on the dielectric responses, and an accurate estimation of its volume is crucial for an enhanced interpretation of the dielectric response. The dependence of the effective matrix permittivity to the shale-gas minerals was well investigated...

... heterogeneities of the plug can be detected, characterized and compared with measurements from different physical origin. Dielectric Spectroscopy Setup Laboratory Setup Abstract The recent introduction of a downhole logging device to estimate rock multi-frequency complex permittivity has motivated...

... Table 1 Relative dielectric permittivity of minerals and fluids Material ɛ r Quartz 4.4 Sandstone 4.65 Limestone 7.5 to 9.2 Dolomite 6.8 Clay (dry colloids) 5.0 – 5.8 Anhydrite 6.4 Halite 5.9 Gypsum 4.16 Oil...

... to their own characteristic length scales and physics of the measurements, which complement each other in a multiphysical interpretation. The complex dielectric permittivity measured on carbonate core samples in the reflection mode in the range of 1 MHz to 1 GHz, exhibits a strong difference between the two...