青藏高原重点盆地与特提斯构造域含油气盆地对比分析  

Comparative Analysis of Main Depositional Basin of Qinghai-Tibet Plateau and Thetys Domain

作　　者：南征兵[1] 张艳玲[2] 李永铁[1] 郭祖军[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国地质环境监测院,北京100081

出　　处：《天然气地球科学》2012年第6期1039-1044,共6页Natural Gas Geoscience

摘　　要：特提斯构造域是一个巨型的油气富集带,世界上许多特大型油气田都发育在特提斯构造域中。特提斯构造域含油气丰富但不均匀,以南带油气最为富集,盆地类型上以克拉通边缘盆地和前陆盆地最富油气。青藏高原位于特提斯构造域的东段,是我国海相三叠系—新近系分布面积最大、最集中的地区,也是我国最具油气潜力但研究程度又很低的地区。青藏高原作为特提斯构造域东段的主体,在构造演化上密切相关,但在含油气盆地特征上存在较大差别。通过青藏高原各重点沉积盆地与特提斯构造域含油气盆地初步对比,对青藏高原的油气资源潜力进行了分析,认为青藏高原油气勘探的关键是后期的保存条件。Thetys domain is a giant oil and gas enriched zone.A number of supergiant gas-oil fields have been discovered in this domain.However,the oil and gas are unevenly distributed.The south belt is mostly enriched in oil-gas,while in case of basin types,the pericratonic basin and foreland basin are mostly enriched in oil-gas.The Qinghai-Tibet plateau is located in the east of Thetys domain,where the marine Triassic-Tertiary have most concentrated distribution and largest distribution area.The oil and gas potential is great while the research is poor.The Qinghai-Tibet plateau is a main body of the eastern Thetys.They have close correlation in tectonic evolution,but great difference in the basin′s characteristics.By means of comparison of each main depositional basin of Qinghai-Tibet plateau and the basin of Thetys domain,this article analysed the hydrocarbon resource potential,and indicated that late preservation condition is a key issue for the oil-gas exploration in the Qinghai-Tibet plateau.

关 键 词：特提斯构造域 重点沉积盆地 青藏高原 石油地质条件 羌塘盆地 

分 类 号：TE121.1[石油与天然气工程—油气勘探]