Formation conditions and distribution patterns of N-1 tight oil in   Zhahaquan Area, Qaidam Basin, China

doi:10.1177/0144598716631661

CORC > 北京大学 > 地球与空间科学学院

	Formation conditions and distribution patterns of N-1 tight oil in Zhahaquan Area, Qaidam Basin, China
	Yu, Chuanqi ; Guan, Ping ; Zou, Caineng ; Wei, Hengfei ; Deng, Kaifu ; Wang, Peng ; Wu, Yanxiong
刊名	ENERGY EXPLORATION & EXPLOITATION
	2016
关键词	Qaidam basin Zhahaquan Area tight oil formation conditions distribution patterns source and reservoir conditions abnormal high pressure SONGLIAO BASIN GAS-RESERVOIR ORDOS BASIN PRESSURE GENESIS SYSTEMS
DOI	10.1177/0144598716631661
英文摘要	A systematic study on the formation conditions and distribution patterns of N-1 tight oil in Zhahaquan Area of the Qaidam Basin was conducted by summarizing and analyzing documents related to geochemistry, sedimentary petrology, petroleum geology, lithofacies paleogeography, oil production test, well drilling and the well logging, etc. The four favorable conditions for the formation, migration, and accumulation of tight oil in the Zhahaquan Area are as follows: good source rocks, high quality reservoirs, display of the reservoirs, and abnormal high pressure of the stratum. Firstly, there are three sets of high quality source rocks that lay a good foundation for the formation of tight oil in this area. Secondly, high quality reservoirs consisting of multiple types of sand, such as beach sand, gravity current sand, and beach-dam sand are widely distributed, thickly accumulated and continuous, thus providing reserving space for the formation of tight oil in this area. Thirdly, the reservoirs of beach-bar sand links with the source rocks directly or links with the source rocks like fingers distributed in the deep or semi-deep lake or are interbedded with source rocks. Above source and reservoir dispositions are favorable for the formation of tight oil. Lastly, in the N-1 downstream, tight oil reservoirs are at an abnormal high pressure of 1.3-1.5, which provides enough pressure for tight oil charging and reservoir forming. The study shows that tight oil is mainly distributed in the sag center and the slopes around the sag and has a huge resource potential.; National Science and Technology Major Special Projects [2011ZX05009-002-403, 2011ZX05004-004-005]; National Key Basic Research Development Planned Project [2012CB214801]; SCI(E); EI; ARTICLE; pguanl@pku.edu.cn; 3; 339-359; 34
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438255]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Yu, Chuanqi,Guan, Ping,Zou, Caineng,et al. Formation conditions and distribution patterns of N-1 tight oil in Zhahaquan Area, Qaidam Basin, China[J]. ENERGY EXPLORATION & EXPLOITATION,2016.
APA	Yu, Chuanqi.,Guan, Ping.,Zou, Caineng.,Wei, Hengfei.,Deng, Kaifu.,...&Wu, Yanxiong.(2016).Formation conditions and distribution patterns of N-1 tight oil in Zhahaquan Area, Qaidam Basin, China.ENERGY EXPLORATION & EXPLOITATION.
MLA	Yu, Chuanqi,et al."Formation conditions and distribution patterns of N-1 tight oil in Zhahaquan Area, Qaidam Basin, China".ENERGY EXPLORATION & EXPLOITATION (2016).