TY - JOUR
T1 - Carbon and hydrogen isotopes of neo-pentane for biodegraded natural gas correlation
AU - Boreham, Christopher J.
AU - Edwards, Dianne S.
AU - Hope, Janet M.
AU - Chen, Junhong
AU - Hong, Ziqing
PY - 2008/10
Y1 - 2008/10
N2 - 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 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
AB - 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 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
UR - http://www.scopus.com/inward/record.url?scp=51249120069&partnerID=8YFLogxK
U2 - 10.1016/j.orggeochem.2008.06.010
DO - 10.1016/j.orggeochem.2008.06.010
M3 - Article
SN - 0146-6380
VL - 39
SP - 1483
EP - 1486
JO - Organic Geochemistry
JF - Organic Geochemistry
IS - 10
ER -