Results 11 to 20 of about 219,276 (273)

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

Scattering matrix in external field problems [PDF]

open access: yes, 1995
We discuss several aspects of second quantized scattering operators $\hat S$ for fermions in external time dependent fields. We derive our results on a general, abstract level having in mind as a main application potentials of the Yang--Mills type and in
Edwin Langmann   +2 more
core   +3 more sources

Shale Permeability under Shale Components’ Thermal Swelling [PDF]

open access: yesGeofluids, 2021
Permeability is one of the most fundamental reservoir rock properties required for modeling hydrocarbon production. However, shale permeability is not yet fully understood because of the high temperature of shale reservoirs. The third thermal stress that is caused by temperature change will decrease the permeability of shale.
Xiang Ao   +3 more
openaire   +2 more sources

Shale Oil and Shale Gas Resources [PDF]

open access: yes, 2020
This multidisciplinary book covers a wide range of topics addressing critical challenges for advancing the understanding and management of shale oil and shale gas resources. Both fundamental and practical issues are considered. By covering a variety of technical topics, we aim to contribute to building a more integrated perspective to meet major ...
Torres, José A., Klie, Hector
openaire   +3 more sources

A salt-induced viscosifying smart polymer for fracturing inter-salt shale oil reservoirs

open access: yesPetroleum Science, 2019
Inter-salt shale oil reservoirs located between two salt layers are always accompanied by high temperature and high salinity. However, the present commonly used water-soluble polymers in fracturing fluids suffer from poor tolerance to high temperature ...
Xian’e Li   +5 more
doaj   +1 more source

Effect of Fe Content on Raman Spectral Characteristics of Dolomite

open access: yesYankuang ceshi, 2023
BACKGROUNDDolomite is a common carbonate mineral in sedimentary rocks, and dolomite rock serves as an important reservoir rock for oil and gas. However, the production of synthetic dolomite under normal temperature and pressure is not yet possible, the ...
Jiang PANG   +6 more
doaj   +1 more source

The Oil Shale Transformation in the Presence of an Acidic BEA Zeolite under Microwave Irradiation [PDF]

open access: yes, 2014
The transformation of an oil shale sample from the Autun Basin in the Massif Central, France, was studied using two different heating strategies: microwave irradiation and conventional heating.
Bond, Gary   +5 more
core   +3 more sources

A study of the mechanism of nonuniform production rate in shale gas based on nonradioactive gas tracer technology

open access: yesEnergy Science & Engineering, 2020
The performance of horizontal wells in shale gas is controlled by multiple factors, and there is a difference in gas production rate between different fracturing stages. However, the mechanism of the nonuniform gas production rate is still not clear.
Shan Huang   +4 more
doaj   +1 more source

SHEER “smart” database: technical note [PDF]

open access: yes, 2019
The SHEER database brings together a large amount of data of various types: interdisciplinary site data from seven independent episodes, research data and those for the project results dissemination process.
Cesca, Simone   +13 more
core   +1 more source

Preservation of molecular fossils in carbonate concretions in cretaceous shales in the songliao basin, northeast China

open access: yesFrontiers in Earth Science, 2023
Paleoenvironmental information is better preserved in carbonate concretions. In this study, carbonate concretions in the Cretaceous Nenjiang shale, Songliao Basin, were examined to determine whether molecular fossils reflective of the paleoenvironment ...
Lamei Lin   +5 more
doaj   +1 more source

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