摘要
辽东湾地区天然气资源丰富、类型多样.本文依据近20口井的天然气分析资料,以JZ20-2凝析气田为重点,对天然气特征研究,认为该区天然气属油型气,生气母质是偏腐植的Ⅱ型干酪根;下第三系沙河街组,东营组地层是本区的气源岩,尤以辽中凹陷的沙河街组地层最为重要.
In Liaodong Bay there are rich resources of gas of variedtypes.Characterization of gas,gas from JZ 20-2 condensatefield for example,was studied with database of approximate 20wells.Subsequently it is believed that the gas of the region ispredominated by associated gas.The precursor of it is humic typeⅡ kerogen.As to stratigraphy,Shahejie and Dongying formationsof Paleogene are source rocks for the gas in the region,particu-larly Shahejie formation in Liaozhong sag.
出处
《中国海上油气（地质）》
1989年第5期9-15,共7页
China Offshore Oil and Gas(Geology)
