Results 11 to 20 of about 96,612 (290)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+16 more sources

Study on Well Logging Technology for the Comprehensive Evaluation of the “Seven Properties” of Shale Oil Reservoirs—An Example of Shale Oil in the Lucaogou Formation in the Jimsar Sag, Junggar Basin

open access: yesFrontiers in Earth Science, 2022
The shale oil reservoir in the Lucaogou Formation in the Jimsar Sag, Junggar Basin has a complex lithology, complex pore structure, and strong heterogeneity.
Hongyan Qi   +5 more
doaj   +1 more source

Mechanical properties and damage constitutive model of mud shale under different drilling fluids immersion

open access: yesMeitan kexue jishu, 2023
In the process of shale oil and gas drilling, the long-term erosion and weakening of drilling fluids promotes the extension and expansion of micro-fractures on mud shale, which leads to the reduction of rock mass strength and seriously threatens the ...
Diandong GENG   +4 more
doaj   +1 more source

Petrology, Mineralogy, and Geochemical Characterization of Paleogene Oil Shales of the Youganwo Formation in the Maoming Basin, Southern China: Implication for Source Rock Evaluation, Provenance, Paleoweathering and Maturity

open access: yesEnergies, 2023
Oil shale is a crucial unconventional energy source to supplement conventional oil and gas. The oil shale in the Maoming Basin of China has excellent resource potential.
Fei Hu   +4 more
doaj   +1 more source

Experimental Study of Volumetric Fracturing Properties for Shale under Different Stress States

open access: yesGeofluids, 2021
Shale gas can be commercially produced using the stimulated reservoir volume (SRV) with multistage fracturing or multiwell synchronous fracturing. These fracturing technologies can produce additional stress fields that significantly influence the crack ...
Hongjian Wang   +5 more
doaj   +1 more source

Experimental studies on the shear resistance of original coal-shale joint [PDF]

open access: yes, 2017
Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
core   +2 more sources

Frictional properties of shale reservoir rocks [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2013
AbstractWe performed laboratory friction experiments on shale samples from three hydrocarbon reservoirs to assess compositional controls on fault slip behavior accompanying hydraulic stimulation. The samples span a range of clay and total organic content from ~10 to 60% by weight and demonstrate fine‐scale heterogeneity within each reservoir.
Arjun H. Kohli, Mark D. Zoback
openaire   +1 more source

The Dale Oil Field, Caldwell County, Texas [PDF]

open access: yes, 1930
Geological ...
Hancock, James Martin
core   +1 more source

Shales Geochemistry within Kolosh Formation (Paleocene – Early Eocene ) in Dokan Region – Northeastern Iraq; Implications for Provenance, Paleoweathering and Tectonic Setting [PDF]

open access: yesKirkuk Journal of Science, 2019
The study is carried out on twenty shale samples that were collected from the Kolosh Formation (Paleocene – Early Eocene) within the Dokan area at northeastern part of Iraq.
Abbas Ali   +2 more
doaj   +1 more source

Petrophysical and rock physics analyses for characterization of complex sands in deepwater Niger delta, Nigeria [PDF]

open access: yes, 2017
Characterization of complex sand reservoirs in deepwater of Niger Delta was carried out through petrophysical and rock physics evaluation of well log data from three wells.
Adeyemi, Olatunde B.   +2 more
core   +2 more sources

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