An accurate estimation of mobile oil in shale samples from Fengcheng Formation (Mahu Sag) via cryogenic preservation

Key Points

• Estimation of mobile oil in shale samples reached high accuracy, improving resource assessments.
• Mobile oil was detected with precision measurements, yielding estimates of over 15% in select samples.
• Assessment using cryogenic preservation techniques enhanced the reliability of analysis for geological formations.
• Highlights the need for accurate measurement methods in shale resource evaluations for future exploration.