... physical phenomena such as multiphase flow, capillary pressure, and relative permeability. Relative permeability was obtained using digital steady-state oil-brine imbibition at six injection ratios. The digital rock model was also studied to determine the formation factor and cementation exponent, while...

...-2025-0085 carbonate reservoir exponent permittivity resistivity inversion SPWLA 66th Annual Logging Symposium, May 17-21, 2025 DOI: 10.30632/SPWLA-2025-0085 TIME TO REVISIT DEEP DIELECTRIC MEASUREMENTS? INTERESTING INSIGHTS FROM MIDDLE EAST CARBONATE RESERVOIRS Raghu Ramamoorthy1, Martin G...

... spectrometer kristensen operation contamination probe wavelength spwla-2024-0035 mullin integration interpretation drilling fluid selection and formulation annual logging symposium spwla 65 efficiency derivative exponent SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA...

... symposium spectrum concentration climate change logging symposium resistivity subsurface storage artificial intelligence enhanced recovery machine learning pressure transient analysis chloride concentration th annual logging symposium halliburton spectra spwla 64 exponent spwla 64th sensor...

... such as huff-n-puff operations. There are very little published relative permeability data for tight oil reservoirs. This work extends the relative permeability database, and is a starting point for future EOR work. fluid dynamics exponent flow in porous media displacement co 2 oil relative...

... ( porsosity × irreducible water saturation = constant ) and the slope of the data is a direct measure of the difference between the Archie cementation exponent (m) and the Archie saturation exponent (n). For the interpretation presented here, values of the changing slope can be calculated to define, point...

... and saturation exponents. Industry literature is replete with examples of why this approach leads to erroneous estimates of the water saturation, and methods have been proposed where the range of saturation present in the reservoir has been subdivided into segments each having a different set of exponents. Here...

... (inorganic) fraction is examined. A second porosity/resistivity plot compares resistivity with effective porosity (organic), and is interpreted to indicate Archie saturation exponents of much larger than 2 – frequently in excess of 3 – indicating the oil-wet fraction of the reservoir system. Additionally...

... method in complex mixed-wet formations. well logging water saturation application Kennedy log analysis Simulation montaron Symposium Upstream Oil & Gas particle conductivity equation 16 exponent electrical conductivity synthetic case saturation interaction wettability Archie...

..., where the effect from the formation CEC on the dielectric response is negligible. The inversion of the multifrequency data with this model provides a continuous log of CEC, water-filled porosity, salinity, and a water-phase tortuosity exponent, which, for fully water-saturated rocks, is analogous...

...) can predict in a common environment the following parameters: Matrix parameters to derive porosity from bulk density or sonic slowness, Archie porosity (cementation) exponent ( m ), saturation exponent ( n ), and water resistivity ( Rw ), and irreducible bulk volume water ( BVWirr ). The display uses...

... Abstract The tight sandy conglomerate reservoirs features high heterogeneity, tortuous pore space structure and complex mineralogy, which results in significant scatter of Archie's exponents ( m and n ). The experimental measurement of electrical resistivity of ten tight sandy conglomerate...

... dielectric logging in clean carbonates also provides valuable information on the reservoir rock texture through the continuous determination versus depth of the mn exponent, which includes both the effect of a varying cementation exponent m and a varying saturation exponent n. Values of the mn exponent...

... Abstract Estimation of accurate electrical property parameters, such as the "cementation exponent" m and "saturation exponent" n is critical for characterizing hydrocarbon saturations with resistivity based models for completions decisions and original oil-in-place estimation. These exponents...

... by wettability variations from water-wet to oil-wet in the Green River formation. Resistivity-based saturation models rely on the knowledge of Archie „m‟ and „n‟ exponents, which are highly variable and difficult to obtain from core. Many of the intervals appear to be self-sourcing, which may contribute...

... ABSTRACT: Carbonate rocks are usually characterized by a variety of porosity types resulting from depositional and diagenetic processes. The variation of the pore geometry, connectivity and size controls the electrical properties of carbonate rocks. The cementation exponent ( m ) is controlled...

... and engage with the vendor throughout the data acquisition program. The QC/QA analysis used in this study can improve the performance of these vendors and the quality of data. core analysis Upstream Oil & Gas porosity log analysis limestone sample laboratory data quality exponent reduction...

... modulus from matrix to skeleton modulus is much stronger than the Biot's coefficient derived from the laboratory. This effect is more severe then the possible errors in the fluid mixing law. Initially we introduce an additional weakening based on the saturation exponent and aspect ratio. This modification...

... volumetric/geometrical terms. An exponent that compensates for the change of electric-current direction is required (Haro, 2006). This is so because resistance is a property of the object, with shape and volume, and resistivity is a property of the material. Integration of sand and clay volumes, fluid...

... Abstract So called Archie rocks are characterized by a resistivity index versus water saturation that plots as a straight line on a log-log scale, the slope of the line being equal to -n where n is the saturation exponent. All rocks for which the resistivity index presents a curvature qualify...