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Medium texture

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Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197384-MS
... in an opaque 3D porous medium. SANS measurements give access simultaneously to the gas saturation and to the amount of gas-liquid interfaces developed per unit volume and therefore to the in situ specific surface area of the foam denoted S/V. In situ texture of the foam flowing in real 3D porous media...
Dolomite-rock <span class="search-highlight">texture</span> 3: unimodal, fine- to <span class="search-highlight">medium</span>-crystalline planar-s (su...
Published: 07 November 2016
Figure 12 Dolomite-rock texture 3: unimodal, fine- to medium-crystalline planar-s (subhedral) mosaic dolomite. Scale bar is 100 um. (A) The original texture could be packstone. Most of the dolomites have cloudy core and clear rim. The crystal size is 50-70 um. (B) The original texture could be wac... More
Dolomite-rock <span class="search-highlight">texture</span> 5: <span class="search-highlight">medium</span> to coarse crystalline planar-s (subhedral) ...
Published: 07 November 2016
Figure 14 Dolomite-rock texture 5: medium to coarse crystalline planar-s (subhedral) dolomite cement. Scale bar is 200 um. (A) The original texture could be wackestone. The vug was probably formed by dissolution or burrow, filled by dolomite crystals. Most crystals are clear, which means no replac... More
Proceedings Papers

Paper presented at the SPE California Regional Meeting, April 8–10, 1987
Paper Number: SPE-16371-MS
... in porous media, we investigate the mechanisms of foam generation in porous media. Foam generation processes are important because they control the texture (i.e., the bubble size) of a foam as it flows through the medium. Texture in turn, strongly affects the pressure drop flow-rate relationship for foam...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-192
... of magnitude, from approximately 0.1 µm to 120.0 µm. The wide range of roughness for the geomaterials is graphically reflected in Figure 2, in which a portion of profiles of selected geomaterials including the HDPE smooth geomembrane, FRP (with and against grain), hardened steel, HDPE medium textured...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1998
Paper Number: SPE-49020-MS
... in homogeneous and heterogeneous media). In this correlation, we express explicitly the evolution of the mobile bubble density, (the foam texture that governs foam viscosity) as a function of the physical properties of the porous medium (porosity, permeability and capillary pressure) and the evolution...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3752041
..., if textural anisotropy and elastic moduli are known, one can utilize the anisotropy template to constrain anisotropy values and their evolution with stress changes. The template for the air-dry conditions when the pores of the medium are filled with air embodies the stiffness of the frame (Gassmann, 1951...
Proceedings Papers

Paper presented at the 7th World Petroleum Congress, April 2–9, 1967
Paper Number: WPC-12224
... concentration) and the foam en tubes et en milieu poreux. Ces proprietés dépendent stabilizer. They also depend on the shear rate as well as de l'espèce de mousse (rapport du volume gazeux au the permeability and liquid saturation of the porous volume total), de la texture de la mousse (taille des medium...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Conference and Exhibition, November 11–14, 2012
Paper Number: SPE-161383-MS
.... These include pore shape, size, orientation, throat size distribution, connectivity, tortuosity, and relative volumes of connected and isolated pores. These pore attributes enable the use of effective medium rock physics models that compute elastic moduli. We tested the Xu-Payne Differential Effective Medium...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0095
... thicker and finer layers made up of two types of granulometries, coarser-predominantly more porous and finer-less porous. (Shrubs/Spherulite) Texture 6: Structureless (reworked-Shrubs- Spherulite) medium grain size deposits, predominating medium black hole (meso interparticle porosity). Texture 7...
Journal Articles
J Pet Technol 73 (02): 61–62.
Paper Number: SPE-0221-0061-JPT
Published: 01 February 2021
... dolomite, medium-to-dark grey-brown in places, with occasional very-fine-to-medium grainstone texture and very poor intercrystalline porosity. In this paper, the Upper and Lower Araej members are interpreted to have been deposited in an open, marine- circulation shelfal environment, while the Uweinat...
Journal Articles
Petrophysics 61 (02): 189–205.
Paper Number: SPWLA-2020-v61n2a5
Published: 01 April 2020
... to the average contact angle, the spatial distribution of contact angles throughout the porous medium is important, as it directly controls the connectivity of wetting and nonwetting phases. The controlling factors may not only relate to the surface chemistry of minerals but also to their texture, which implies...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28940-MS
... foam mobility depends in a complex way on bubble size, or foam texture,5,6 and texture itself depends on many factors.7 Of these factors by far the most important is capillary pressure Pc, the difference between gas- and water-phase pressures in the porous medium. (For simplicity here, we refer...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186364-MS
... ischaracterized with conglomerate and coarse sandstones interbedded with medium and fine sandstonesthat normal form graded bedding sequences. The oil-bearing grade is also varying over short interval. In addition to the above, the rock texture differs significantly and can range from massive conglomerates...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-307
... ABSTRACT: The detection of fractures in an anisotropic medium is complicated by discrete modes that are guided or confined by layers, as well as by fractures, and that travel with velocities close (~92%) to the shear wave velocity. For instance, fractures can “mask” the presence of textural...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17743468
... database to analyze the influence rock texture parameters in the velocity-porosity relationship. Differential Effective Medium (DEM) Model The Differential Effective Medium (DEM) model describes a composite material with two phases in which the elastic moduli changes due to infinitesimal additions...
Journal Articles
OIJ 2018 (08): 10–13.
Paper Number: OIJ-2018-08-010-013-RU
Published: 01 August 2018
... to their further tectonization, textural reorientation, mineral transformations in porous medium. In the article the following questions are mentioned: convergence in Geology; the emergence of dissipative or highly ordered structures; evolutionary self-organization and reorganization of rock-forming material...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-381
... is used to understand the relations. The results show that although the correlations are medium and poor before grouping the texture, the relations between the properties are highly correlated after grouping which gives illuminating interpretations. 2. GENERAL INFORMATION AND SCOPE OF THE STUDY...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 10–13, 2013
Paper Number: SPE-164150-MS
..., and provides a measure of the water phase tortuosity, which is a combination of texture and wettability, captured in the Archie’s exponents m and n . Previous work has demonstrated the estimation of m from pore size distribution obtained from NMR data using an effective medium model. Formation Resistivity...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-004
... centimetre to metre scales. The name "mafic microgranular enclaves" reflects their high contents of dark (mafic) minerals (dark micas, amphiboles) and fine- to medium-grained, equigranular texture (Fig. 1A). Genetically, the mafic microgranular enclaves represent relatively rapidly chilled "drops" of more...

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