Shale gas reservoir modeling and production evaluation considering complex gas transport mechanisms and dispersed distribution of kerogen
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DOI: 10.1007/s12182-020-00495-1
Abstract: Stimulated shale reservoirs consist of kerogen, inorganic matter, secondary and hydraulic fractures. The dispersed distribution of kerogen within matrices and complex gas flow mechanisms make production evaluation challenging. Here we establish an analytical method that… read more here.
Keywords: production; inorganic matter; gas; complex gas ... See more keywords
Molecular insights into carbon dioxide enhanced multi-component shale gas recovery and its sequestration in realistic kerogen
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DOI: 10.1016/j.cej.2021.130292
Abstract: Abstract Understanding the governing processes of CO2 huff-n-puff in shales is essential for enhancing shale gas recovery and CO2 sequestration. However, existing studies have not fully accounted for the chemical composition and geometry of kerogen… read more here.
Keywords: gas; kerogen; co2; gas recovery ... See more keywords
Mechanisms for Kerogen Wettability Transition from Water-Wet to CO2-Wet: Implications for CO2 Sequestration
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DOI: 10.1016/j.cej.2021.132020
Abstract: Abstract Geological CO2 sequestration (GCS) is an essential building block of the global strategy to alleviate greenhouse gas emissions and mitigate the climate change. Injecting CO2 into the shale formations can not only reduce carbon… read more here.
Keywords: kerogen; co2; co2 wet; wet ... See more keywords
Binding of heavy metals by oxidised kerogen in (palaeo)weathered black shales
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DOI: 10.1016/j.chemgeo.2018.06.025
Abstract: Abstract Sub-aerial weathering of black shales drives the gradual leaching of sulphur- and organic-bound heavy metal elements, which are usually abundant in these rocks due to depositional conditions. The formation of oxygen functional groups in… read more here.
Keywords: adsorption; black shales; partially weathered; oxidised kerogen ... See more keywords
Modelling hydrothermal venting in volcanic sedimentary basins: Impact on hydrocarbon maturation and paleoclimate
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DOI: 10.1016/j.epsl.2017.03.023
Abstract: Highlights • Numerical model of sill intrusions in sedimentary basins. • Fracture and vent formation due to overpressure generation. • Methane fluxes through a single vent with upscaling to basin scales. • Additional regions in… read more here.
Keywords: sedimentary basins; formation; methane; vent ... See more keywords
Molecular simulation of adsorption and thermodynamic properties on type II kerogen: Influence of maturity and moisture content
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DOI: 10.1016/j.fuel.2016.11.027
Abstract: Abstract The adsorption characteristics of shale under the reservoir conditions have significant effects on the original gas in place and productivity. In this study, based on realistic kerogen models, methane (CH 4 ) adsorption isotherms… read more here.
Keywords: adsorption; moisture content; kerogen; maturity ... See more keywords
Modeling molecular interactions of sodium montmorillonite clay with 3D kerogen models
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DOI: 10.1016/j.fuel.2017.03.021
Abstract: Abstract The interactions of kerogen with charged mineral entities such as clays in oil shale are important for the development of new processes for extraction of kerogen from oil shales. In this work, the complex… read more here.
Keywords: montmorillonite clay; clay kerogen; clay; sodium montmorillonite ... See more keywords
Molecular simulation of adsorption behaviors of methane, carbon dioxide and their mixtures on kerogen: Effect of kerogen maturity and moisture content
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DOI: 10.1016/j.fuel.2017.09.060
Abstract: Abstract The adsorption behaviors of methane (CH 4 ), carbon dioxide (CO 2 ) and their mixtures are vital to understand the process of CO 2 sequestration and shale gas exploitation. In this work, four… read more here.
Keywords: adsorption; moisture content; kerogen; kerogen maturity ... See more keywords
Experimental measurement and analytical estimation of methane absorption in shale kerogen
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DOI: 10.1016/j.fuel.2018.11.144
Abstract: Abstract Gas storage in shale (organic-rich mudstone) consists of three different states: free gas in pores and natural fractures; adsorbed gas on organic and inorganic pore walls; and absorbed gas into organic matter (kerogen). Since… read more here.
Keywords: gas; sorption; kerogen; absorbed gas ... See more keywords
Direct estimation of shale oil potential by the structural insight of Indian origin kerogen
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DOI: 10.1016/j.fuel.2018.12.057
Abstract: Abstract Structural insight of Indian origin kerogen has been investigated by Solid State 13C Cross Polarization Magic Angle Spinning Nuclear Magnetic Resonance (13C CPMAS NMR) and Infrared (IR) Spectroscopic techniques. Cross Polarization (CP) with decoupling… read more here.
Keywords: oil potential; kerogen; oil; indian origin ... See more keywords
The time-temperature-maturity relationship: A chemical kinetic model of kerogen evolution based on a developed molecule-maturity index
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DOI: 10.1016/j.fuel.2020.118264
Abstract: Abstract Kerogen maturity is an important indicator for evaluating source rocks. We propose a kerogen maturity index (molecule-maturity index, MMI) based on the changes in the molecular structure of organic matter during thermal evolution. The… read more here.
Keywords: maturity index; evolution; maturity; kinetic model ... See more keywords