The paleo-oil resource is calculated to be about (0.61-0.92) × 109 t (average 0.76 × 109 t), and the cracked gas volume is about (380.80-595.80) × 109 m3 (average 488.30 × 109 m3); at least 58.74% of cracked gas is preserved in Puguang gas field. The study area experienced ...