摘要
盆地模拟结果显示:渤东凹陷东营组下段和沙河街组烃源岩的生油总量为48.71×108t,排油总量为26.37×108t;生气总量为47686×108m3,排气总量为35797×108m3;沙河街组烃源岩的生烃潜力远高于东营组下段烃源岩。据此并结合渤东凹陷内生排烃强度与生排烃量的平面分布特点,预测出该凹陷南部沉积中心周围的渤南凸起、庙西凸起及渤东低凸起南端是油气勘探取得突破的关键地区。
The results of basin modelling show that total amount of oil generation and expulsion at lower of Dongying formation and Shahejie formation in Bodong depression are 48.71×10^(8)t and 26.37×10^(8) t separately, that its gas generation and explusion amount are 47 486×10^(8) m^(3) and 35 797×10^(8) m^(3) relatively, and hydrocarbon potential of Shahejie formation is about as 4 times as it of lower of Dongying Formation. Combined with plane charactertics of intensity and amount of hydrocarbon generation and explusion in Bodong depression, it could be predicted that Bonan convex, Miaoxi convex and the south part of Bodong low convex surrounding sedimentary center of Bodong depression are favourable hydrocarbon explorating area.
出处
《天然气地球科学》
EI
CAS
CSCD
2004年第4期379-382,共4页
Natural Gas Geoscience
关键词
渤东凹陷
东营组
沙河街组
生烃
排烃
盆地模拟
Bodong depression
Dongying formation
Shahejie formation
Hydrocarbon generation
Hydrocarbon explusion
Basin modelling.
