Results 81 to 90 of about 1,842 (227)
Image Segmentation and Analysis of Pore Network Geometry in Two Natural Sandstones
Frontiers in Earth Science, 2018 We report the results of pore-network analysis of high resolution synchrotron microtomographic images of Fontainebleau and Berea Sandstones. We segment the gray-scale images of the rocks into constituent phases, and analyze the geometry of the pore ...
Paul-Ross Thomson +2 more
doaj +1 more source
Experimental Study on Accurate Determination of Shale Porosity by Nuclear Magnetic Resonance
Chinese Journal of Magnetic ResonanceIn recent years, the exploration and development of shale oil and gas have expanded significantly, accompanied by numerous challenges. Porosity is a fundamental parameter for shale reservoir evaluation and reserve estimation, providing essential data for
DU Qunjie
doaj +1 more source
VALORACIONES FÍSICO-QUÍMICA MINERALÓGICA DE ROCA SELLO Y NÚCLEOS PARA LA EXTRACCIÓN DE PETRÓLEO
Avances en Ciencias e Ingeniería, 2020 The general objective of this study is to analyze the seal rock, cores and oil. The analytical techniques used for these effects were: Infrared (IR) spectroscopy, to know qualitative and quantitative composition of elements that make up the phases, X-ray
Freya González +2 more
doaj
Bayesian NMR petrophysical characterization
Journal of Magnetic ResonanceIdentification of reservoir rock types is necessary for the exploration and recovery of oil and gas. It involves determining the petrophysical properties of rocks such as porosity and permeability which play a significant role in developing reservoir models, estimating the volumes of oil and gas reserves, and planning production methods.
S, Pitawala, P D, Teal
openaire +2 more sources
, 2022 This study is focused on the Gargaf Formation which represents the main reservoir production in the Belhedan Field with gross thickness that ranges from 130 to 187 feet. The aim of this study to determine the fluid contact with identifies the hydrocarbon
Naser Altoumi
core +1 more source
Tight Sandstone Water Saturation Model Based on Complex Resistivity
Cejing jishuTo solve the problem that it is difficult to accurately calculate the water saturation in tight sandstone reservoirs due to complex pore structure, and strong heterogeneity, this paper takes the tight sandstone of the Xujiahe formation gas reservoir in ...
ZHAO Peiqiang +3 more
doaj +1 more source
Scientific results from the deepened Lopra-1 borehole, Faroe Islands: Wire-line log-based stratigraphy of flood basalts from the Lopra-1/1A well, Faroe Islands [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2006 The present study shows that it is possible to use conventional borehole logs to perform a detailed lithological/stratigraphical division of a column of subaerially extruded basalt.
Boldreel, Lars O.
doaj
EnergiesThis study establishes a facies-based framework for characterizing reservoir quality in the Upper Pannonian geothermal reservoirs of the Szentes field (Hungary).
Catarina C. Castro +4 more
doaj +1 more source
Open Geosciences, 2016 Time series often contain breakpoints of different origin, i.e. breakpoints, caused by (i) shifts in trend, (ii) other changes in trend and/or, (iii) changes in variance.
Topál Dániel +3 more
doaj +1 more source
Performance of Spanish white Macael marble exposed to narrow- and medium-range temperature cycling
Materiales de Construccion, 2010 White marble specimens from Macael in the Spanish province of Almeria were exposed to narrow- (50/20 ºC) and medium- (100/-20 ºC and 75/-20 ºC) range thermal stress cycles. The effects were monitored with ultrasound techniques.
J. Rodríguez Gordillo +1 more
doaj +1 more source