Results 71 to 80 of about 6,759,086 (168)

Comparison of hydrocarbons formed at pyrolysis of Turkish type I kerogen (Göynük) and type II kerogen (Beypazari)

open access: yes, 2006
Kerogen samples isolated from the Göynük and Beypazari oil shales were pyrolyzed to study the effect of kerogen type on the rate of product evolution and composition of the pyrolysis products.
Reimert R., Ballice L.
core  

Study of the component composition of organic matter of the East Pre-Caucasian basin rocks based on the results of lithological, petrophysical and geochemical studies

open access: yesGeoresursy
This study introduces results of lithological, petrophysical and geochemical investigation of Lower Cretaceous (K1 ) and Middle Jurassic (J2 a-b) rocks of East Pre-Caucasian basin.According to pyrolytic and bituminological studies method of separate ...
R. S. Khisamov   +4 more
doaj   +1 more source

Dynamic cycling and redox transformations of dissolved organic sulfur in the surface ocean

open access: yesLimnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract The marine dissolved organic sulfur (DOS) pool contains both labile metabolites that are rapidly cycled in the surface ocean and compounds that may persist for thousands of years in the marine environment. Here, we describe the sulfur speciation of marine solid‐phase extracted DOS (DOSSPE) from the North Atlantic surface ocean, revealing a ...
Molly A. Crotteau   +7 more
wiley   +1 more source

Methane Adsorption on Shale: Insights from Experiments and a Simplified Local Density Model

open access: yesAdsorption Science & Technology, 2014
We herein present a method for predicting adsorption isotherms of methane on shale using the simplified local density (SLD) theory: First, the adsorption isotherms of methane on shale samples were measured and then its adsorption on illite, illite ...
Luo Zuo   +6 more
doaj   +1 more source

Oiliness gradation of hybrid sedimentary shale with low-moderate organic matter content: a case study of the Paleocene Shahejie Formation in Dongpu Depression, Bohai Bay Basin

open access: yesInternational Journal of Coal Science & Technology
Shale oil resources are abundant on Earth, of which hybrid sedimentary shale (HSS) oil is an important component, including high and medium–low organic matter content (TOC). Oil content, especially the oiliness gradation, is a key parameter for shale oil
Zhiming Xiong   +13 more
doaj   +1 more source

Hydrocarbon Source Rock Potential and Thermal Maturity of Baong, Peutu, and Bampo Formations in the North Sumatra Basin, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology
This study investigates the hydrocarbon source rock potential and thermal maturity of shale and mudstone outcrop samples from the Baong, Peutu, and Bampo Formations in the North Sumatra Basin, Indonesia.
Fahri Adrian   +4 more
doaj   +1 more source

Chemical reaction model for oil and gas generation from type I and type II kerogen

open access: yes, 1993
reportA global model for the generation of oil and gas from petroleum source rocks is presented. The model consists of 13 chemical species and 10 reactions, including an alternate pathway mechanism for kerogen pyrolysis.
Braun, Robert L.; Burnham, Alan K.
core  

Organic geochemistry and basin modeling of the Eocene Mangahewa source rock system in the Pohokura oilfield, Taranaki Basin (New Zealand) and their indication of oil and gas potential

open access: yesChina Geology
: The importance of organic geochemistry and basin modeling is widely recognized and used to understand the source rock potential and hydrocarbon generation history of the Mangahewa Formation, and thereby given the foundational role in the petroleum ...
Talha S.M. Qadri   +5 more
doaj   +1 more source

Increasing maturity of kerogen type II reflected by alkylbenzene distribution from pyrolysis-gas chromatography–mass spectrometry

open access: yes, 2008
A series of Late Devonian to Early Mississippian type II kerogens with vitrinite reflectance values Ro 0.29–2.41% were analyzed using py-GC–MS.
Schimmelmann, A, Lis, GP, Mastalerz, M
core   +1 more source

Oil-source correlation and Paleozoic source rock analysis in the Siwa Basin, Western Desert: Insights from well-logs, Rock-Eval pyrolysis, and biomarker data

open access: yesEnergy Geoscience
Understanding the origins of potential source rocks and unraveling the intricate connections between reservoir oils and their source formations in the Siwa Basin (Western Desert, Egypt) necessitate a thorough oil-source correlation investigation.
Mohamed I. Abdel-Fattah   +5 more
doaj   +1 more source

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