...? We present a new core scanner instrument that can answer these important questions while the core is on the rig floor. The new scanner measures the resistivity and the dielectric permittivity of the cross section of the core. The output is a finely resolved survey along the axis of the core...

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... ABSTRACT Dielectric permittivity mixture models commonly assume simple geometries for the constituting rock components, which affect their reliability in rocks with complex pore geometry and rock fabric such as carbonates. The influence of pore geometry, grain shape, and shape...

... a dielectric permittivity differential length to area correlation based on Maxwell's equations. An established staged differential effective medium model for matrix and vug dielectric dispersion, and a dielectric-T 2 mapping technique are used to evaluate the NMR relaxation, diffusion, and formation factors...

... to vary. After that, we implanted the fracture models into both solid cubical cells and a real three-dimensional micro-computed tomography (3D micro-CT) image of a Berea sandstone sample. We used the synthetic fractured rock models as inputs to a numerical dielectric permittivity simulator under different...

... Abstract Fluid saturations and distributions, water salinity, pore structure, and porosity affect dielectric permittivity measurements. However, the conventional dielectric permittivity mixture models, such as Complex Refractive Index Model (CRIM) and Hanai-Bruggeman (HB) do not quantitatively...

... pairs. In this frequency range, the measurements are sensitive to both the electric conductivity and dielectric permittivity in surrounding rock formations. Tool response to these two parameters has been characterized by modeling and is well known after many decades of study and analysis. However...

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... and mineralogy, and critically, how it can be cross-matched with NMR T1, T2 and D distributions measured in the same rocks at the same saturations. These are the initial steps in building up a comprehensive database of measurements for pore volume- and saturation- controlled dielectric permittivity and effective...

... reservoirs containing fresh to brackish waters. In low water salinity reservoirs, water-bearing and oil-bearing horizons appear very similar on resistivity logs, due to a lack of sufficient resistivity contrast. In comparison, dielectric permittivity of water, at any salinity, is distinctly different from...

... ABSTRACT Broadband electric resistivity and dielectric permittivity measurements are affected by combined effects of rock fabric, composition, fluid saturation and distribution, and interfacial polarization mechanisms. An integrated multi-frequency interpretation of electrical measurements can...

... on wettability. We successfully applied the introduced model to six sandstone core samples from two formations at different wettability conditions. The dielectric permittivity measured from 100 Hz to 1 GHz in the laboratory was in agreement with the permittivity obtained from the proposed analytical rock...

... parameters. Joint evaluation of dielectric permittivity, resistivity, and NMR measurements enables capturing pore- network connectivity, tortuosity, and throat-size distribution for real-time and reliable permeability evaluation, which significantly improves permeability assessment. Such joint interpretation...

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... dielectric permittivity oil saturation saturation California SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 PINPOINTING PRODUCTIVE INTERVALS IN COMPLEX HYDROCAR- BON-BEARING ZONES USING RADIAL INVASION PROFILES FROM DIELECTRIC MEASUREMENTS Martin G. Lüling*, Steve Grayson#, Jim Hemingway...

...). Empirical mixing laws are applied to derive water-filled porosity and water salinity from measured dielectric permittivity and conductivity in the flushed zone (Seleznev et al., 2004). The dielectric property of sedimentary rocks is a function of frequency, known as dielectric dispersion (Sen, 1980...

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... was controlled chambers containing saturated salt solutions. Full brine saturation was achieved using a 1000 psi pressure vessel which lead to approximately 2.0 – 3.6 % vol water content in the samples. For the entire range of saturation including oven dried at 104°C, the increase in dielectric permittivity...

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... such as carbonates and organic-rich mudrocks. The dielectric permittivity measurements are sensitive to the water-filled porosity, especially in the high frequency range (e.g., GHz frequency range), because of the higher dielectric permittivity of water compared to the other rock matrix components. However...