Results 11 to 20 of about 1,305,689 (236)

Authigenic embrittlement of marine shale in the process of diagenesis

open access: yesNatural Gas Industry B, 2018
Studies on the origin of shale brittleness are of great significance to understanding shale gas accumulation laws. The current studies, however, mostly focus on the improvement of shale brittleness by biological quartz enrichment, but rarely on the ...
Honglin Liu   +4 more
doaj   +3 more sources

A comparison of North American shale plays with emerging non-marine shale plays in Australia [PDF]

open access: yesMarine and Petroleum Geology, 2015
Geological and petrophysical parameters are critical in evaluating the production potential of prospective shale gas plays and their economic viability for commercial development. However, based on the US experience, these characteristics can vary widely.
De Silva, PNK   +3 more
openaire   +6 more sources

Pore system and methane adsorption capacity features of marine and marine-continental transitional shale in the Sichuan Basin, SW China [PDF]

open access: yesFrontiers in Earth Science, 2023
Recently, significant achievements have been made in the gas exploration of marine Longmaxi shale in China. As exploration efforts have advanced, the exploration targets have gradually expanded to other sedimentary systems (marine-continental ...
Enze Wang   +4 more
doaj   +2 more sources

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  

+15 more sources

Shale gas exploitation: Status, problems and prospect

open access: yesNatural Gas Industry B, 2018
Over the past five years, great progress has been made in shale gas exploitation, which has become the most driving force for global gas output growth. Hydrocarbon extraction from shale helps drive the USA on the road to energy independence.
Shiqian Wang
doaj   +2 more sources

China organic-rich shale geologic features and special shale gas production issues

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
The depositional environment of organic-rich shale and the related tectonic evolution in China are rather different from those in North America. In China, organic-rich shale is not only deposited in marine environment, but also in non-marine environment:
Yiwen Ju   +4 more
doaj   +2 more sources

Low-temperature gas from marine shales [PDF]

open access: yesGeochemical Transactions, 2009
Thermal cracking of kerogens and bitumens is widely accepted as the major source of natural gas (thermal gas). Decomposition is believed to occur at high temperatures, between 100 and 200 degrees C in the subsurface and generally above 300 degrees C in the laboratory. Although there are examples of gas deposits possibly generated at lower temperatures,
Jarvie Daniel M, Mango Frank D
openaire   +3 more sources

Denitrification in marine shales in northeastern Colorado [PDF]

open access: yesWater Resources Research, 1999
Parts of the South Platte River alluvial aquifer in northeastern Colorado are underlain by the Pierre Shale, a marine deposit of Late Cretaceous age that is <1000 m thick. Ground water in the aquifer is contaminated with NO3‐, and the shale contains abundant potential electron donors for denitrification in the forms of organic carbon and sulfide ...
P. B. McMahon   +2 more
openaire   +1 more source

The Characterization of Shale Differences Based on Petrophysical Properties and Pore Structure: A Case Study of the Longmaxi Formation in Northern Guizhou Province and the Yanchang Formation in the Ordos Basin

open access: yesApplied Sciences, 2022
The pore structure and the petrophysical properties are essential parameters during the marine and continental shale reservoir evaluation. In order to the reveal the mechanism of the pore parameters differences and discuss whether the controlling factors
Duo Wang   +4 more
doaj   +1 more source

Geochemical and gas bearing characteristics of the marine-continental transitional Longtan shales in southern Sichuan, China

open access: yesFrontiers in Earth Science, 2023
Marine-continental transitional shale, as an important shale type, gains less attention than marine and continental shale, which restricts the exploration and development process of marine-continental transitional shale gas.
Yana Chen   +11 more
doaj   +1 more source

Home - About - Disclaimer - Privacy