银额盆地与二连盆地成藏条件对比及有利勘探区带  

Correlation of Hydrocarbon Accumulation Conditions in Yin'e Basin and Erlian Basin and Selection of Favorable Prospecting Zones

作　　者：郝银全[1] 林卫东[2] 董伟宏[3] 刘东周[3] 熊铁 

机构地区：[1]中国石油石油勘探开发科学研究院,北京100083 [2]中山大学地球环境与地球资源研究中心,广州510725 [3]中国地质大学(北京),北京100083 [4]中国石油勘探与生产公司,北京100011

出　　处：《新疆石油地质》2006年第6期664-666,共3页Xinjiang Petroleum Geology

基　　金：中国石油"十五"油气勘探科技工程资助项目;中西部地区中小盆地石油地质综合研究与目标优选(200204-06)资助

摘　　要：银额盆地和二连盆地是中蒙边境地区的两个构造、沉积层序相似的以白垩系为主要沉积盖层的裂谷盆地。对二者的基本成藏条件从烃源岩、油气运移和聚集等多方面进行了对比。对比表明,银额盆地下白垩统烃源岩的丰度、类型、油气运移通道以及储集层物性等条件比二连盆地普遍要差,但也有一些凹陷和地区与二连盆地有相近的成藏条件。借鉴二连盆地的勘探经验,认为坳陷背景上的大而深的凹陷是银额盆地首选勘探地区,要将寻找构造-岩性等复合型油气藏作为勘探重点。Yin＇e and Erliang, located in China-Mongolia frontier area, are two rift basins with similar structure and sedimentary sequence, dominated by Cretaceous as a sedimentary cover. Comparison of principal reservoir-formed conditions such as source rock, hydrocarbon migration and accumulation, etc. shows that Yin＇e basin is generally poorer than Erlian basin in abundance and type of source rock, hydrocarbon migration channel and petrophysical property of reservoir of Lower Cretaceous, but similar conditions appear in some sags and areas, compared with Erlian basin. Therefore, according to Edian＇s exploration experience, it is suggested that the large and deep sags with depression background could be the premier prospecting areas of Yin＇e basin and searching for structure-lithology complex reservoirs should be focused in the near future.

关 键 词：银根盆地 二连盆地 成藏条件 油气勘探 

分 类 号：TE111.1[石油与天然气工程—油气勘探]