Results 81 to 90 of about 9,661 (202)

Hydro‐Mechanical‐Chemical Behavior of Sedimentary Rock During CO2 Injection

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract This study examines the effect of CO2 treatment duration on the poroviscoelastic properties of sedimentary rock, including sandstone, limestone, and shale. A hydro‐mechanical‐chemical (HMC) coupling framework is employed to evaluate the time‐dependent response of fluid‐saturated rock subjected to CO2 exposure.
Hyunbin Kim   +2 more
wiley   +1 more source

Shale lithofacies mechanical differences from tectonic-diagenetic coupling and their response to hydraulic fracture network propagation

open access: yesFrontiers in Earth Science
Fracture propagation modes in shale formations exhibit significant variations across different lithofacies during tectonic deformation and hydraulic fracturing.
Liyan Yang   +3 more
doaj   +1 more source

Study on the Wettability and Spontaneous Imbibition Characteristics of Lacustrine Shale

open access: yesGeofluids, 2022
Wettability plays a significant role in the exploration and development of shale oil. The wettability affects the oil enrichment and restricts the selection of fracturing fluids. Shale is composed of complex minerals and organic matter.
Haitao Xue   +10 more
doaj   +1 more source

Machine Learning‐Based Seismic Subsurface Characterization: The State of the Art and Future Perspectives

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Seismic subsurface characterization involves interpreting seismic records to delineate geological features and estimate the physical properties of subsurface rocks (such as lithofacies, porosity, and fluid saturation). As an effective remote sensing technology to characterize the large‐scale spatial distribution of subsurface properties ...
Minghui Xu   +3 more
wiley   +1 more source

Depositional environment and pore structure of mixed lithofacies shale of the Longmaxi Formation in the DM Block, the Southern Sichuan Basin, China

open access: yesEnergy Exploration & Exploitation, 2020
Distinguishing the differences of pore characters between different mixed lithofacies shales is helpful for improving shale gas development efficiencies. In this study, the targeted Longmaxi shale ( L 1 ) of the Southern Sichuan Basin was selected as the
Jijun Tian   +4 more
doaj   +1 more source

Distribution of sedimentary rock types through time in a back-arc basin: A case study from the Jurassic of the Greater Caucasus (Northern Neotethys) [PDF]

open access: yes, 2009
The evolution of sedimentary basins can be explored by analyzing the changes in their lithologies and lithofacies (i.e. predominant lithologies). The Greater Caucasus Basin, which was located at the northern margin of the Neotethys Ocean, represents a ...
Boggs S.   +33 more
core   +1 more source

Rock‐buffered versus fluid‐buffered geochemistry of structurally controlled, hydrothermal dolomite: Insights from the Sichuan Basin, China

open access: yesSedimentology, Volume 72, Issue 7, Page 2087-2120, December 2025.
ABSTRACT Structurally controlled hydrothermal dolomitization, commonly driven by high‐pressure, high‐temperature fluid–rock reactions, offers insights into the tectonic evolution of sedimentary basins and the geochemical composition of their diagenetic fluids.
Huachuan Jiang   +7 more
wiley   +1 more source

Anatomy and dimensions of fluvial crevasse-splay deposits: examples from the Cretaceous Castlegate Sandstone and Neslen Formation, Utah, U.S.A. [PDF]

open access: yes, 2017
Crevasse-splay deposits form a volumetrically significant component of many fluvial overbank successions (up to 90% in some successions).Yet the relationships between the morphological form of accumulated splay bodies and their internal facies ...
Burns, CE   +3 more
core   +1 more source

Ichnological discrimination of hemipelagic‐dominated slope versus basin‐floor mudstones: Insights from early Viséan successions of a distally steepened ramp, northern Iran

open access: yesThe Depositional Record, Volume 11, Issue 5, Page 1563-1595, November 2025.
This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll   +2 more
wiley   +1 more source

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5777-5798, November 2025.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou   +8 more
wiley   +1 more source

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