Structure characteristics and major controlling factors of platform   margin microbial reef reservoirs: A case study of Xiaoerbulak Formation,   Lower Cambrian, Aksu area, Tarim Basin, NW China

CORC > 北京大学 > 地球与空间科学学院

	Structure characteristics and major controlling factors of platform margin microbial reef reservoirs: A case study of Xiaoerbulak Formation, Lower Cambrian, Aksu area, Tarim Basin, NW China
	Bai Ying ; Luo Ping ; Wang Shi ; Zhou Chuanmin ; Zhai Xiufen ; Wang Shan ; Yang Zongyu
刊名	PETROLEUM EXPLORATION AND DEVELOPMENT
	2017
关键词	microbial reef thrombolites laminites reservoirs rimmed platform Tarim Basin Lower Cambrian Xiaoerblak Formation MODERN MARINE STROMATOLITES CALCIFICATION
英文摘要	The structure characteristics and major controlling factors of platform margin microbial reef reservoirs in the Lower Cambrian Xiaoerbulak Formation in the Aksu area, Tarim Basin were analyzed based on 5 outcrop sections, 162 thin sections, 12 SEM samples, 52 sets of porosity and permeability data. Macroscopically, small-scale microbial reefs form the platform margin. A single microbial reef has several microbial reef progradation complexes, including reef front, fore reef, reef crest, and back reef, but microscopically, they have different kinds of microstructures. The reservoir spaces in the reefs can be divided into microbial structure reservoir space, including fenestral, frame, moldic, and oversized dissolution pores, and non-microbial structure reservoir space, including microcracks and stylo-lites. The statistical results of porosity and permeability show that in the Yutixi Section, porosity and permeability of the microbial reef reservoirs are generally below 5% and 1.0x10(-3) mu m(2) respectively, characteristics of extremely low porosity and permeability reservoirs; while the reef reservoirs in the Sugaitebulake Section have a wide porosity range between 3% and 10%, and permeability range between 0.1x10(-3) mu m(2) and 50x10(-3) mu m(2), and strong heterogeneity, are low-medium porosity, low-medium permeability reservoirs. This demonstrates different microbial reefs have big differences in physical properties, and even the reservoir in the same reef has obvious heterogeneity. Paleotopography controls the formation of microbial reefs and sedimentation controls the facies distribution and the primary porosity development. Dissolution, controlled by the two former factors, finally decides evolution of reservoir pores.; China National Science and Technology Major Project [2016ZX05004-001]; SCI(E); ARTICLE; 3; 377-386; 44
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472986]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Bai Ying,Luo Ping,Wang Shi,et al. Structure characteristics and major controlling factors of platform margin microbial reef reservoirs: A case study of Xiaoerbulak Formation, Lower Cambrian, Aksu area, Tarim Basin, NW China[J]. PETROLEUM EXPLORATION AND DEVELOPMENT,2017.
APA	Bai Ying.,Luo Ping.,Wang Shi.,Zhou Chuanmin.,Zhai Xiufen.,...&Yang Zongyu.(2017).Structure characteristics and major controlling factors of platform margin microbial reef reservoirs: A case study of Xiaoerbulak Formation, Lower Cambrian, Aksu area, Tarim Basin, NW China.PETROLEUM EXPLORATION AND DEVELOPMENT.
MLA	Bai Ying,et al."Structure characteristics and major controlling factors of platform margin microbial reef reservoirs: A case study of Xiaoerbulak Formation, Lower Cambrian, Aksu area, Tarim Basin, NW China".PETROLEUM EXPLORATION AND DEVELOPMENT (2017).