Using soft computing techniques to predict corrected air permeability using Thomeer parameters, air porosity and grain density

7 Nov 2019 PET parameters of interest are standard maximal uptake values Karolien Vanhove, Michiel Thomeer, Elien Derveaux & Liesbet Mesotten.

2020-10-01 · Thomeer parameters are related with the characteristic parameters of Thomeer PSD, including the peak position, the peak height and FWHM. The peak position moved toward larger capillary pressure with the increase of extrapolated displacement pressure and pore geometrical factor. J. H. M. Thomeer, “Air Permeability as a Function of Three Pore Network Parameters,” Journal of Petroleum Technology, Vol. 35, No. 4, 1983, pp. 809-814. has been cited by the following article: TITLE: Using Capillary Pressure Derived Parameters for Improving Permeability Prediction. AUTHORS: Amir Maher S. Lala The Thomeer parameterization proved to be very adept for handling the complexity and multimodality of carbonate pore systems. In this paper a direct and closed form solution of the upscaling The Thomeer parameters are intuitive: the sorting parameter of the pore-throats (G), the maximum size of pore-throats (P d), and the porosity (B∞).

There is also a core database with links to a few available Thin Sections based on their poro-perm relationships. Parameters in this model include: interfacial tension, contact angle, shape factor, porosity, permeability, irreducible water saturation, and displacement pressure. These 5.1 A family of capillary pressure curves showing Thomeer’s three parameters: Thomeer analysis involves the fitting of the Thomeer hyperbola to core plug MICP data by determining the Thomeer parameters (initial displacement pressure, geometric factor, and bulk volume mercury injected). This results in a full characterization of the entire pore space of each core plug.

Thomeer hyperbolas and Swanson parameters were automatically calculated for each pore system. Dispersion plot of Bv all vs. porosity from standard porosimetry measurements, Φ hp, showed distinctly the difference in the porosity values (Fig. 8). Bv all means sum of MIP effective porosity in …

Parameters in this model include: interfacial tension, contact angle, shape factor, porosity, permeability, irreducible water saturation, and displacement pressure. These 5.1 A family of capillary pressure curves showing Thomeer’s three parameters: Thomeer analysis involves the fitting of the Thomeer hyperbola to core plug MICP data by determining the Thomeer parameters (initial displacement pressure, geometric factor, and bulk volume mercury injected). This results in a full characterization of the entire pore space of each core plug.

Thomeer hyperbolas and Swanson parameters were automatically calculated for each pore system. Dispersion plot of Bv all vs. porosity from standard porosimetry measurements, Φ hp, showed distinctly the difference in the porosity values (Fig. 8). Bv all means sum of MIP effective porosity in …

(e.g., Swanson parameter, area under the curve, threshold entry pressure, capillary pressure at different mercury saturations, Thomeer parameters, Brooks and parameters in the Gaussian density function relate more directly and intuitively to pore- system attributes than the parameters included in Thomeer's derivative. Object: Proximal spinal nerve stumps were used as donor sites for grafts to repair brachial plexus traction lesions.

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The Thomeer model was used to fit the PC curves. Tlle fitted curves were defined by the two parameters of the model: the pore structure factor, G, 1 Leverett j-function; 2 Thomeer model; 3 Brooks and Corey; 4 Bentsen and Anli; 5 Alpak-Lake-Embid model; 6 Nomenclature; 7 References; 8 Noteworthy Thomeer's Parameters for Capillary Pressure Curves mercury at infinite capillary pressure (similar to previous parameter, irreducible wetting phase saturation) geological-petrophysical parameters commonly used in petrophysical parameters: porosity and air Thomeer parameters, 4 which mathematically express. 23 Dec 2016 parameters for understanding reservoir characteristics, eval- uating the lor 1976, Kolodzie 1980, Swanson 1981, Thomeer 1983,.

2016-01-19 2020-10-01 Thomeer parameters relate to the controlling parameters of Gaussian density function. The peak position moved toward larger capillary pressure with the increase of extrapolated displacement pressure and pore geometrical factor. 2014-03-01 2007-03-01 The Thomeer parameters are intuitive: the sorting parameter of the pore-throats (G), the maximum size of pore-throats (P d), and the porosity (B Thomeer parameters were predicted from the remaining .
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Thomeer methodology was used for Static Rock Typing analysis, utilizing the extensive available Mercury Injection Capillary Pressure Data (MICP) to capture the complexity of the M carbonate reservoir, and the Thomeer parameters (G – shape factor, Bv – Bulk Volume and Pd – entry pressure) were derived for every pore mode of these selected MICP plugs.

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Petrophysical rock types (PRTs) are defined by Clerke et al. (2008) as objects or combinations of objects that are present in the 3D space of the Thomeer pore-system parameters. Porositons are a new PRT object type; other PRT objects are clusters, trends, and surfaces.

The Thomeer hyperbolas so determined are converted to capillary pressure curves. Theme Visible Selectable Appearance Zoom Range (now: 0) Fill Stroke; Collaborating Authors Thomeer parameters for a multi-pore system of a Thomeer model are determined by evaluating an objective function that measures the mismatch between the well log data and modeled data having the Thomeer parameters as input. 2016-09-07 · The capillary pressure J-function is a dimensionless measure of the capillary pressure of a fluid in a porous medium. The function was derived based on a capillary bundle model. However, the dependence of the J-function on the saturation Sw is not well understood.

This study has suggested that Gaussian error distributions are a better alternative than Thomeer hyperbolas for alluvial fan conglomerates, but future investigations are needed. Moreover, investigations of the Thomeer parameters were performed and the analysis showed: high correlation between the Thomeer parameter equivalent to largest pore-throat radius and permeability measured by CCA.

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Pore structure characterization and permeability estimation with a modified multimodal Thomeer pore size distribution function for carbonate reservoirs Thomeer also evaluated both the significance and accuracy of determination of these parameters. Values were determined from capillary-pressure curves on 144 parameters. Values were determined from capillary-pressure curves on 144 diverse rock samples and correlated with air permeabilities measured on the same samples. 2021-02-23 The T 2 data and the hydrocarbon density, water density, free water level, and paleo-water level of the formation are processed to obtain parameters of Thomeer hyperbolas that closely conform to water saturation values obtained from the other well logs. The Thomeer hyperbolas so determined are converted to capillary pressure curves. The Thomeer-Corey alpha parameter [Pa-1]. LAMBDA The Thomer-Corey m parameter [-].