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Relative Sorption Coefficient

Title: Relative Sorption Coefficient: Key To Tracing Petroleum Migration And Other Subsurface Fluids.
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Name(s): Zhang, L., author
Wang, Y., author
Li, M.-W., author
Yin, Q.-Z., author
Zhang, W., author
Type of Resource: text
Genre: Journal Article
Text
Journal Article
Date Issued: 2019-11-14
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The accumulation and spatial distribution of economically important petroleum in sedimentary basins are primarily controlled by its migration from source rocks through permeable carrier beds to reservoirs. Tracing petroleum migration entails the use of molecular indices established according to sorption capacities of polar molecules in migrating petroleum. However, little is known about molecular sorption capacities in natural migration systems, rendering these indices unreliable. Here, we present a new approach based on a novel concept of relative sorption coefficient for quantitatively assessing sorption capacities of polar molecules during natural petroleum migration. Using this approach, we discovered previously unrecognized "stripping" and "impeding" effects that significantly reduce the sorption capacities of polar compounds. These discoveries provide new insights into the behaviors of polar compounds and can easily explain why traditional molecular indices yield incorrect information about petroleum migration. In light of these new findings, we established new molecular indices for tracing petroleum migration. We demonstrate via case studies that the newly established indices, unlike traditional molecular indices, are reliable and effective in tracing petroleum migration. Our approach can be applied to diverse basins around the world to reveal distribution patterns of petroleum, which would decrease environmental risks of exploration by reducing unsuccessful wells.
Identifier: FSU_libsubv1_wos_000496416000055 (IID), 10.1038/s41598-019-52259-6 (DOI)
Keywords: adsorption, asphaltenes, benzocarbazole distributions, carbazole, crude oils, desorption, fractionation, maturity, nitrogen-compounds, source rocks
Publication Note: The publisher's version of record is available at https://doi.org/10.1038/s41598-019-52259-6
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000496416000055
Host Institution: FSU
Is Part Of: Scientific Reports.
2045-2322
Issue: vol. 9

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Zhang, L., Wang, Y., Li, M. -W., Yin, Q. -Z., & Zhang, W. (2019). Relative Sorption Coefficient: Key To Tracing Petroleum Migration And Other Subsurface Fluids. Scientific Reports. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000496416000055