نتایج جستجو برای: vitrinite reflectance

تعداد نتایج: 19788  

Journal: :Minerals 2021

Ordos Basin is an important continental shale gas exploration site in China. The micropore structure of the reservoir great importance for evaluation. Taiyuan Formation lower Permian main interval this area. To examine nanometer pore structures reservoirs Lin-Xing area, Northern Shaanxi, microscopic characteristics were analyzed via nitrogen adsorption experiments. parameters, such as specific ...

Journal: :Organic Geochemistry 2021

Carbon (?13C) and hydrogen (?2H) compound-specific isotope analyses on sedimentary hydrocarbons are widely used for ecological reconstructions oil-source rock or oil-oil correlations. However, the effects of thermal alteration isotopic composition not fully understood, potentially imparting a bias interpretation older more mature sequences. We measured ?13C ?2H n-alkanes in 23 extracted bitumen...

Journal: :Applied sciences 2022

Numerous studies have been done to determine the hydrocarbon potential of Malaysia’s formations and basins due need identify more conventional or unconventional resources. Due fact that none these investigations were carried out with any prior knowledge in relevant regions potential, some them did not, however, yield expected results. This study aims provide researchers all necessary informatio...

Journal: :Frontiers in Earth Science 2023

Tight sandstone gas (TSG) reservoirs develop extensively in the upper Paleozoic coal bearing strata both southern North China Basin and Ordos Basin. The former has not achieved important advances TSG exploration, while latter built largest production facility China. By comparing accumulation conditions Tongxu area of Fuxian Basin, main controlling factors were analyzed this article. results ind...

Journal: :International Journal of Coal Science & Technology 2021

Abstract The thermal effect caused by deep magma intrusion can not only accelerate the metamorphism of coal body, but also bring additional field that changes mechanical environment seams, thereby affecting permeability seams. Different from shallow resources, resources are in a characterized limited stress and strain. Thus, has more significant influence on distribution characteristics In this...

Journal: :International Journal of Coal Science & Technology 2021

Abstract Four coal samples from Jharia basin, India are treated with nitric acid in glacial acetic and aqueous media to find out the chemical, petrographic spatial structure of organic mass by X-ray diffraction (XRD) Fourier Transform Infrared Spectroscopy (FTIR) techniques. parameters like interlayer spacing ( d 002 ), crystallite size L c aroamticity f a average number aromatic layers N rank ...

Journal: :International Journal of Coal Science & Technology 2023

Abstract The low to medium-rank Tertiary coals from Meghalaya, India, are explored for the first time their comprehensive microstructural characterization using FTIR and Raman spectroscopy. Further, results these compared with Permian medium high-rank understand restyling during coalification its controls on hydrocarbon generation. coal samples grouped based mean random vitrinite reflectance va...

Journal: :international journal of nanoscience and nanotechnology 2013
sh. sohrabnezhad* d. rezaei ochbelgh n. morsali golboos

in this research, cobalt and nickel sulfide nanoparticles (nps) were grown on almcm-41 matrix by using ion exchange method. the prepared samples were irradiated by thermalized neutron that emitted from am-be source up to fluencies (7.9+e9n/cm2). after that, x-ray diffraction (xrd), uv-vis spectroscopy, fourier transform infrared (ftir), scanning electron microscopy (sem) and transmission electr...

2000
M. J. Iglesias

The Py-GC/MS results of the study carried out on two groups of vitrinites (perhydrous and non-perhydrous) of di€erent age and properties and on a trimaceralic coal associated with one of the perhydrous group are discussed. Such a study provides information about the e€ect of natural hydrogen enrichment on vitrinite structure at the molecular level. Moreover, the in ̄uence of the di€erent conditi...

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