Results 41 to 50 of about 518 (138)

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, M. P. Sáez Pérez   +1 more
doaj   +1 more source

Characterization of proven Late Cretaceous Reservoir rocks in the Gulf of Gabes: Integrated case study

BSGF - Earth Sciences Bulletin, 2023
Microstructural features control the petrophysical properties of rocks. Of these, pore size is particularly sensitive when non-wetting fluids saturate the reservoir. The pore networks and physical properties (helium, water and mercury saturation porosity,
Boughalmi Senda, Géraud Yves, Grosheny Danièle, Ben Alaya Sonia, Hedi Negra Mohamed   +4 more
doaj   +1 more source

Influence of the Geometric Characteristics of Fractures Induced by the Sandstones With Different Strength on the Hydro‐Mechanical Behaviors Within a Single Rock Fracture

Energy Science &Engineering, EarlyView.
Higher compressive strength in sandstone fractures leads to smoother surfaces, smaller apertures, and more contact, which reduce transmissivity but increase the critical pressure gradient for nonlinear flow initiation. ABSTRACT The correlation between rock compressive strength and fracture roughness represents a significant area of research within the ...
Gaohan Li, Junchao Chen, Kai Xu, Xiang Chen, Xiaopeng Su, Liang Zhang, Feng Lu   +6 more
wiley   +1 more source

Detecting breakpoints in artificially modified- and real-life time series using three state-of-the-art methods

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, Matyasovszkyt István, Kern Zoltán, Hatvani István Gábor   +3 more
doaj   +1 more source

Coupled Assessment of Injection Pressure–Driven Risk, Trapping Evolution, and Cost Uncertainty in Geological CO2 Storage

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Scaling geological CO2 storage requires simultaneously controlling plume migration, pressure buildup, geomechanical integrity, and monitoring cost under deep subsurface uncertainty. Yet early‐stage assessments often treat these elements in isolation, obscuring the decision‐critical couplings between pressure‐defined regulatory exposure and ...
Mrityunjay Singh, Heba Atef, Ingo Sass
wiley   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source

Petrophysical characterization of three commercial varieties of miocene sandstones from the Ebro valley

Materiales de Construccion, 2007
Miocene sandstones studied were used extensively to build Aragon’s architectural heritage, are still used in modern construction. The quarries presently located on the edge of the Ebro Valley depression.
O. Buj, J. Gisbert
doaj   +1 more source

Inferring Inter‐Well Fracture Interactions in Unconventional Reservoirs Using Fiber‐Optic Sensing and Coupled Multiphysics Modelling

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Integrating distributed temperature sensing (DTS) and distributed acoustic sensing (DAS) data with numerical simulations to analyze inter‐well interference and production responses remains challenging. This study employs a coupled thermal–hydraulic–mechanical simulation framework to model heat transfer, fluid flow, and geomechanical responses ...
Chuanyao Zhong, Jiahui Chen, Juliana Y. Leung, Mirko van der Baan   +3 more
wiley   +1 more source

Monitoring shallow geothermal aquifers with active‐source distributed acoustic sensing: A prognostic feasibility study on the University of Leeds Geothermal Campus

Near Surface Geophysics, EarlyView.
Abstract The United Kingdom's shallow aquifers offer significant but underdeveloped geothermal energy resource. Seismic methods can help address this by improving the understanding of aquifer heterogeneity and potentially allowing long‐term monitoring of thermal plumes.
Adam D. Booth, Roger A. Clark, Andy Nowacki, Ravi Myanger, Joseph Kelly, Sjoerd de Ridder, Arka Dyuti Sarkar, Fleur Loveridge, Richard Collier, Emma Bramham, David Healy   +10 more
wiley   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source