It was revealed that hydrocarbon was sourced from the Middle Cambrian and Lower Ordovician.Gas was in stage of high to post-maturity, with characteristics of cracking gas of crude oil.

• 油气的基本特征表明,其来源于寒武系-中下奥陶统,天然气演化程度达到高-过成熟阶段,具有原油裂解气的特点,气藏是早期形成的古油气藏经改造调整而形成的。