Chemometric characterization of crude oil biomarker ratios from the western sub-depression of the Bozhong Depression, Bohai Bay Basin, China

Key Points

• Biomarker ratios reveal distinct geochemical characteristics of crude oil in the region, with notable implications for exploration.
• Key findings indicate significant variability in crude oil composition across different samples in the Bozhong Depression.
• Analysis involved chemometric techniques to evaluate relationships among various biomarker ratios and crude oil properties.
• Findings support the potential for enhanced oil recovery strategies based on distinct geochemical profiles identified.