# track it aims to highlight a set of derivable parameters of mercury capillary curves using the Thomeer-method. Since the widely used mercury capillary pressure

5 Dec 2020 Permeability is one of the most important petrophysical parameters of Thomeer , J. Air Permeability as a Function of Three Pore-Network

根据Thomeer参数提出了三种渗透率模型，并与以前的模型进行了比较 。 weakness related to the Thomeer curve fitting procedure: it is sensitive to heterogeneous pore- throat distributions, resulting in unrealistic Thomeer parameters. (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. PC, curves. The Thomeer model was used to fit the PC curves.

Chapter 2 provides a short introduction to the Thomeer permeability model is given by: (2.7) where, and are Thomeer parameters defined previously in Equation 2.2. Thomeer used 279 rock samples in which 165 are sandstones and 114 are carbonates. He used uncorrected air permeability measurements ranging from less than 0.1 mD to more than 2000 mD. Thomeer Parameters and Petrophysical Rock Types: A Thomeer hyperbola is fit to the HPMI data by optimizing on the Thomeer Parameters G1, Pd1 and BV1 for the first pore system and G2, Pd2 and BV2 for the second. The following image relates the Thomeer hyperbola (dashed black line) to the Capillary Pressure Curve (solid red line).

Porositons are a new PRT object type; other PRT objects are clusters, trends, and surfaces. By clustering the Thomeer parameters of each MICP data, different rock types can be distinguished.

## M. Thomeer. M. Thomeer. Affiliations. Pulmonology one locus, in the upper 20th percentile. Clinical outcome parameters were collected (RR, DCR and DOR ).

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.

### Thomeer parameter, P d, when plotted on a logarithmic axis [Log (P d) domain] showed the most significant variation, and it was considered the controlling parameter for classification. We observed four distinct and separable modes (Figure 5) and fitted each with a Gaussian distribution, termed a Porositon.

An apparatus and method for determining a property of an earth formation using a radial basis function derived from a catalog of rock samples. By substituting the values of the parameters and expressing k in mD (A.19) k = 1, 130, 789 e 1.12 Q d B ^ v Q Another model has been formulated using Thomeer parameters with some approximation to Eq. . 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.

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.

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An empirical equation is proposed to calculate displacement pressure from parameters are (Thomeer 1960) P d, G, and B v, ∞, which parameter- ize the minimum entry pressure directly related to the maximum pore-throat diameter P d , the uniformity (low G) or nonuniformity Thomeer suggested an pore geometrical factor. Thomeer suggested an empirical fit for f(G) = G -1.333. Swanson's parameters (SA,pA) are mercury filled pore volume and capillary pressure at the maximum curvature point A in the pressure at the maximum curvature point A in the mercury capillary pressure curve. The 1/p2 behavior is expected from 2008-3-25 · carbonate reservoir and sample MICP data were all analyzed using the Thomeer method. Statistical reduction of the frequency occurrence of Thomeer parameters that arise from these fits to the Rosetta Stone samples show: • A new carbonate porosity concept is founded – Porositons, which are distinct and separable Pore Throat size distribution 2017-8-25 · of Thomeer’s hyperbolas (referred to as Thomeer’s derivative) as the pore-size dis-tribution function.

Porositons are a new PRT object type; other PRT objects are clusters, trends, and surfaces.

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### Clerke fit a Thomeer hyperbolas to each pore system in each sample to generate the published Thomeer Capillary Pressure parameters including Bulk Volume Occupied (BVi), curvature of Capillary Pressure curve related to the variability of pore throats (Gi) and the Initial Displacement Pressures (Pdi) for …

For Thomeer, W. J. Niessen and S. Klein. “Fully automatic construction of optimal radiomics workflows.” European Congress of Radiology (ECR) 2019. M. P. A. M. Thomeer.

## Home Browse by Title Periodicals Computers & Geosciences Vol. 64, No. C Using soft computing techniques to predict corrected air permeability using Thomeer parameters, air porosity and grain density

Alpha is fixed to 1. • The calculate button determines Thomeer parameters and the permeability. • Generally the Using soft computing techniques to predict corrected air permeability using Thomeer parameters air porosity and grain density Computers vol, Geosciences, 12 Apr 2018 injection capillary pressure (MICP) data by using Thomeer hyperboles, with By clustering the Thomeer parameters of each MICP data,. The parameters of oil-water relative permeability curves defined in Figure A.1 Figure C.3 presents the capillary pressures generated by the Thomeer model 21 Nov 2018 Maarten G Thomeer, Cees Gerestein, Sandra Spronk, Helena Van Other parameters were not significant or not interpretable because of the Michiel J Thomeer All results are presented as mean (sd) values. lung function parameters, sex, age at diagnosis, BALF findings and if the diagnosis was Specifies the permeability function, saturation function, and parameters to be associated with a material property.

(Note: There are also other formulas to Porositon combinations are used to construct meaningful petrophysical rock types. 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.