Results 171 to 180 of about 6,860 (216)

Kerogen based characterization of major gas shales: Effects of kerogen fractionation

Organic Geochemistry, 2015
Abstract Research into the origin and the mode of entrapment and expulsion of natural gas from unconventional plays requires the isolation and separation of kerogen in its purest and most intact form from the rock matrix. This study expands on the comparative analysis of the effects that isolation methods, conservative closed system versus ...
Denet Pernia, K.K. (Adry) Bissada, Joseph Curiale   +2 more
openaire   +1 more source

Diagenetic modification of kerogens

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1985
Abstract Kerogen is the part of sedimentary organic matter that is not petroleum. It can be isolated by using acid destruction of minerals, except in recent sediments where this procedure results in important hydrolysis reactions. Whether the scale of observation is microscopic or molecular, kerogens are heterogeneous mixtures whose ...
openaire   +1 more source

A reappraisal of kerogen formation

Geochimica et Cosmochimica Acta, 1989
Abstract Comparative microscopical and chemical studies of recognizable entities in kerogen and their extant counterparts suggest a new and simple mechanism of kerogen formation which clarifies the interrelationships between extant biomass, kerogen, and fossil fuels.
E.W Tegelaar, J.W de Leeuw, S Derenne, C Largeau   +3 more
openaire   +1 more source

On the mechanism of kerogen pyrolysis

Fuel, 1984
Abstract Aromaticities determined by 13 C n.m.r. are reported for five shale oil samples (Green River formation) prepared under widely different pyrolysis conditions. In the absence of high-pressure hydrogen, the total amount of aromatic carbon in the products is nearly twice that in the raw shale.
Alan K. Burnham, James A. Happe
openaire   +1 more source

From Kerogen to Petroleum

1978
As sedimentation and subsidence continue, temperature and pressure increase. In this changing physical environment, the structure of the immature kerogen is no longer in equilibrium with its surroundings. Rearrangements will progressively take place to reach a higher, and thus more stable, degree of ordering.
Bernard P. Tissot, Dietrich H. Welte
openaire   +1 more source

Kerogen: Composition and Classification

1978
The term kerogen will be used here to designate the organic constituent of the sedimentary rocks that is neither soluble in aqueous alkaline solvents nor in the common organic solvents. This is the most frequent acceptance of the term kerogen, and results from a direct generalization to other rock types of the definition by Breger (1961) in ...
Bernard P. Tissot, Dietrich H. Welte
openaire   +1 more source

Sticky layers affect oil transport through the nanopores of realistic shale kerogen

Fuel, 2022
Sen Wang, Qihong Feng, Farzam Javadpour   +2 more
exaly  

Molecular dynamic simulation of the impact of thermal maturity and reservoir temperature on the contact angle and wettability of kerogen

Fuel, 2022
Archana Jagadisan, Zoya Heidari
exaly  

Impacts of kerogen type and thermal maturity on methane and water adsorption isotherms: A molecular simulation approach

Fuel, 2023
Zoya Heidari, Archana Jagadisan
exaly  

Mechanisms for kerogen wettability transition from water-wet to CO2-wet: Implications for CO2 sequestration

Chemical Engineering Journal, 2022
Jiapei Yang, Zhehui Jin, Kai H Luo
exaly