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Carbon and hydrogen isotopes of neo-pentane for biodegraded natural gas correlation

Boreham, Christopher; Edwards, Dianne S.; Hope, Janet; Chen, Junhong; Hong, Ziqing

Description

In severely biodegraded gases, every common C1-C5 hydrocarbon (methane, ethane, propane, iso-butane, n-butane, iso-pentane, n-pentane) and CO2 have been altered, negating the power of carbon and hydrogen isotopic compositions as correlation tools. Here, we show that neo-pentane (2,2-dimethylpropane) is recalcitrant, having an extreme resistance to biodegradation. In a gas biodegradation series with a common source from the Carnarvon Basin, Western Australia, the carbon and hydrogen isotopic...[Show more]

dc.contributor.authorBoreham, Christopher
dc.contributor.authorEdwards, Dianne S.
dc.contributor.authorHope, Janet
dc.contributor.authorChen, Junhong
dc.contributor.authorHong, Ziqing
dc.date.accessioned2015-12-08T22:21:42Z
dc.identifier.issn0146-6380
dc.identifier.urihttp://hdl.handle.net/1885/32233
dc.description.abstractIn severely biodegraded gases, every common C1-C5 hydrocarbon (methane, ethane, propane, iso-butane, n-butane, iso-pentane, n-pentane) and CO2 have been altered, negating the power of carbon and hydrogen isotopic compositions as correlation tools. Here, we show that neo-pentane (2,2-dimethylpropane) is recalcitrant, having an extreme resistance to biodegradation. In a gas biodegradation series with a common source from the Carnarvon Basin, Western Australia, the carbon and hydrogen isotopic compositions of neo-pentane provide the sole means by which a severely biodegraded gas can be correlated with a moderately biodegraded gas and a non-biodegraded gas. As such, the sterically hindered structure involving 2,2-dimethyl hydrocarbons can be exploited in gas (and oil) correlation studies. Crown
dc.publisherPergamon Press
dc.sourceOrganic Geochemistry
dc.subjectKeywords: Carbon-and-hydrogen; Gas industry; alkane; biodegradation; carbon isotope; hydrocarbon; hydrogen isotope; natural gas; Australasia; Australia; Carnarvon Basin; Western Australia
dc.titleCarbon and hydrogen isotopes of neo-pentane for biodegraded natural gas correlation
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume39
dc.date.issued2008
local.identifier.absfor040204 - Organic Geochemistry
local.identifier.ariespublicationu4047674xPUB90
local.type.statusPublished Version
local.contributor.affiliationBoreham, Christopher, Geoscience Australia
local.contributor.affiliationEdwards, Dianne S., Geoscience Australia
local.contributor.affiliationHope, Janet, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationChen, Junhong, Geoscience Australia
local.contributor.affiliationHong, Ziqing, Geoscience Australia
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1483
local.bibliographicCitation.lastpage1486
local.identifier.doi10.1016/j.orggeochem.2008.06.010
dc.date.updated2015-12-08T08:37:33Z
local.identifier.scopusID2-s2.0-51249120069
local.identifier.thomsonID000260285100011
CollectionsANU Research Publications

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