大港油田千米桥潜山油气运移期次研究  

RESEARCH ON THE HYDROCARBON MIGRATION PERIODS OF QIANMIQIAO BURIED HILL IN DAGANG OILFIELD

作　　者：姜平[1] 王建华[2] 

机构地区：[1]成都理工大学 [2]中国地质大学

出　　处：《天然气工业》2005年第12期16-18,17+16,共3页Natural Gas Industry

摘　　要：对大港油田千米桥潜山奥陶系石灰岩中包裹体的特征及均一温度进行了分析,发现其均一温度可分为3期.根据对包裹体的特征和均一温度分布的分析,认为千米桥潜山发生了3期油气运聚,第一期油气运移发生于距今35.1～15.5 Ma之间,即始于沙河阶组一段沉积早期,止于馆陶期末,运移期间埋深变化于2197.18～2901.41 m;第二期油气运移发生于距今9.1～6.0 Ma之间,即始于明化镇组沉积早中期,止于明化镇组沉积中期;第三期油气运移发生于距今3.5 Ma以后,即明化镇组沉积晚期以后才发生大规模的天然气运移.It is discovered by analyzing the inclusion characteristics and homogeneous temperature of the Ordovician limestone of Qianmiqiao buried hill that the homogeneous temperature can be divided into 3 periods. On the basis of analyzing the inclusion characteristics and homogeneous temperature distribution, it is considered that Qianmiqiao buried hill is of 3 Periods of hydrocarbon migration. The first, taking place between 35. 1-15. 5 Ma, begins at the early stage of the first member of Shahejie Formation ends at the last stage of Guantao Formation, and its burial depth changes between 2197. 18-2901. 41 m. The second, taking place between 9. 1-6. 0 Ma, begins at the early-middle stage of Minghuazhen Formation and ends at the middle stage of Minghuazhen Formation. The third, taking place after 3. 5 Ma and with a large scale hydrocarbon migration, begins after Minghuazhen Formation.

关 键 词：流体 包裹体 研究 油气运移 期次 千米桥潜山 大港油田 

分 类 号：P618.13[天文地球—矿床学]