The identification of crocetane in Australian crude oils
MetadataShow full item record
AbstractThe C20 irregular isoprenoid crocetane (2,6,11,15-tetramethylhexadecane) has been unambiguously identified in a series of Western Australian crude oils from the Canning (Ordovician/Devonian) and Perth (Lower Triassic) Basins. PMI (2,6,10,15,19-pentamethylicosane) was found to co-occur with crocetane in the same samples. In addition, a newly observed series of C22-C24 irregular isoprenoids possessing the same carbon skeleton have also been tentatively identified in each of these crude oils on the basis of GC retention times and mass spectral characteristics. This may indicate a source for crocetane, in the Canning and Perth Basin crude oils, from the diagenesis of PMI. The stable carbon isotopiccomposition for combined crocetane/phytane in these samples suggests crocetane is not unusually depleted in 13C compared with all previous reports. This is the first reported occurrence of biomarkers attributable to methanogenic archaea in crude oils.
The link to the journal's home page is: "http://www.elsevier.com/wps/find/journaldescription.cws_home/622273/description#description" Copyright © 2001 Elsevier B.V. All rights reserved
Showing items related by title, author, creator and subject.
Ioppolo-Armanios, Marisa (1996)Analytical procedures have been developed for the quantitative analysis of phenols in crude oils and sedimentary rock pyrolysates and extracts. The procedures involve isolation of the phenolic components of the sedimentary ...
Warton, Benjamin (1999)This thesis reports the results of investigations carried out into the composition of the saturate and aromatic unresolved complex mixtures (UCMs) in crude oils. It is divided into two sections. Section A reports on studies ...
Simulation of subsea production pipeline stream to evaluate and address the flow assurance issues of waxy crude oilAhmed, Ashfaq (2009)The modern world is heavily dependent on crude oil and its associated products and the petroleum industry has taken responsibility to meet the rising consumer demand. Oil and gas production can be broadly subdivided into ...