Sulfur compounds in crude oils of the Jurassic-Paleozoic play in Western Siberia

Abstract

The composition and structure of sulfur compounds in low-, medium-, and high-sulfur crude oils from the Jurassic-Paleozoic play of Western Siberia have been studied. It has been shown that the distribution of organic sulfur compounds in the oils is determined by the depositional environment of source organic matter. Highly alkylated dibenzothiophenes (up to 15 carbon atoms in the aliphatic chain), naphthobenzothiophene isomers and their C1 and C2 homologues, and the α-n-alkylthiolane and α-n-alkylthiane homologous series have been identified for the first time among sulfur compounds of Western Siberia crude oils.