利用盆地模拟技术评价渤东凹陷下第三系油气勘探潜力  

EVALUATING ON HYDROCARBON EXPLORATION POTENTIALOF LOWER TERTIARY IN BODONG DEPRESSION BYBASIN MODELLING TECHNIQUE

作　　者：文志刚[1] 何文祥[1] 米立军 刘逸[1] 王根照 唐友军[1] 

机构地区：[1]长江大学地球化学系 [2]中海石油研究中心渤海研究院,天津塘沽340452

出　　处：《天然气地球科学》2004年第4期379-382,共4页Natural Gas Geoscience

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.

关 键 词：渤东凹陷 东营组 沙河街组 生烃 排烃 盆地模拟 

分 类 号：TE122.11[石油与天然气工程—油气勘探]