Results 51 to 60 of about 1,878,542 (168)

Analysis of Anisotropic Heat Transfer Properties of Oil Shale and Simulation of In-situ Thermal Conduction Exploitation

open access: yesTaiyuan Ligong Daxue xuebao
Purposes In the in-situ mining of oil shale, poor heat transfer efficiency and pronounced anisotropic differences present challenges. Methods In this study, standard samples from Xinjiang's Barikun oil shale are adopted to explore heat transfer ...
Xuanhao ZHANG   +4 more
doaj   +1 more source

Multi-attribute Probabilistic Neural Network Reservoir Prediction Based on Mudstone Acoustic Time Difference Decompaction Correction

open access: yesEnergy Exploration & Exploitation
In order to accurately predict reservoirs with similar physical properties between sandstone and surrounding rocks, this study takes Carboniferous-Permian system in southeastern Ordos Basin as an example, and puts forward a multi-attribute probabilistic ...
Feng Guo   +3 more
doaj   +1 more source

Types of abnormal high-pressure gas reservoir in foreland basins of China

open access: yesJournal of Natural Gas Geoscience, 2018
Abnormal pressure commonly exists in foreland basins that are closely related to the oil and gas reservoir. A deep understanding of the distribution of the said kind of pressure in various reservoirs and characteristic types of abnormally high-pressure ...
Feng Hong   +6 more
doaj   +1 more source

Formation condition of deep gas reservoirs in tight sandstones in Kuqa Foreland Basin

open access: yesPetroleum Research, 2018
Due to the high expense of deep oil and gas exploration, prediction of gas-bearing properties before drilling is crucial for deep gas reservoir of tight sandstone. Deep tight sandstone gas fields in Kuqa Foreland Basin are characterized by high abundance,
Xuesong Lu   +6 more
doaj   +1 more source

Process and mechanism of defluorination using magnesium chloride-modified coal gangue

open access: yesMeitian dizhi yu kantan
BackgroundThe rapid development of industry has resulted in a yearly increase in wastewater discharge, which induces a gradually rising fluorine concentration in water.
Li ZHAO   +7 more
doaj   +1 more source

Sedimentary model controlled by alternating dry-wet climatic cycles environment of Yanchang Formation and exploration significance in upper Triassic, Ordos basin

open access: yesFrontiers in Earth Science
The Ordos Basin, one of China’s most significant onshore oil and gas basins, hosts the Triassic Yanchang Formation, renowned for its multi-layered oil production and three-dimensional distribution of diverse hydrocarbon resources.
Yingqi Feng   +12 more
doaj   +1 more source

Accumulation of alfentanil [PDF]

open access: yesAnaesthesia, 1983
R F, Cookson, H A, Waldron
openaire   +2 more sources

Polytypic downwards accumulations

open access: yes, 1998
A downwards accumulation is a higher-order operation that distributes information downwards through a data structure, from the root towards the leaves. The concept was originally introduced in an ad hoc way for just a couple of kinds of tree. We generalize the concept to an arbitrary polynomial datatype; our generalization proceeds via the notion of a ...
openaire   +2 more sources

Relation of Heterogeneity and Gas-Bearing Capacity of Tight Sandstone: A Case Study of the Upper Paleozoic Tight Gas Sandstone Reservoir in the Southeast of the Ordos Basin

open access: yesACS Omega, 2021
Yande Zhao   +7 more
doaj   +1 more source

Theoretical Prediction of the Occurrence of Gas Hydrate Stability Zones: A Case Study of the Mohe Basin, Northeast China

open access: yesACS Omega, 2021
Bo Liu   +5 more
doaj   +1 more source

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