Tracing the origin of petroleum using asphaltene carbon isotope ratios: Case study from the Songliao Basin, NE China,Petroleum Science and Technology

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Tracing the origin of petroleum using asphaltene carbon isotope ratios: Case study from the Songliao Basin, NE China
Petroleum Science and Technology ( IF 1.3 ) Pub Date : 2020-03-03 , DOI: 10.1080/10916466.2020.1767130
Huairen Cao _{1,

2} , Yan-Rong Zou ₃ , Ping’an Peng _{3,

4}

Affiliation

Abstract Type I and II kerogens, isolated from outcrop shales in the Songliao Basin, were performed a programed sealed-heating kinetic process. Both carbon isotope values of pyrolysis-residual kerogens and those of asphaltene extractions present gradual enrichments dependence on increasing Easy %Ro and biomarker maturity ratios. The carbon isotope (δ13C) values are used for the first time to analyze a close relationship between these kerogens and asphaltenes at the same level of thermal maturation, and identification oil–source rock correlation studies in theory. Such validity of the model was further tested by δ13C of asphaltenes and biomarker ratios in crude oils.

更新日期：2020-03-03

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