Porous-grain-upper-boundary model and its application to Tarim Basin   carbonates

doi:10.1007/s11770-013-0399-8

CORC > 北京大学 > 地球与空间科学学院

	Porous-grain-upper-boundary model and its application to Tarim Basin carbonates
	Guo Yu-Qian ; Ma Hong-Da ; Shi Kai-Bo ; Cao Hong ; Huang Lu-Zhong ; Yao Feng-Chang ; Hu Tian-Yue
刊名	applied geophysics
	2013
关键词	Porous grain-upper-boundary (PGU) model Carbonates Porosity Velocity ROCK-PHYSICS PREDICTION ELASTICITY MEDIA
DOI	10.1007/s11770-013-0399-8
英文摘要	Most of the carbonates in the Tarim Basin in northwest China are low-porosity and low-permeability rocks. Owing to the complexity of porosity in carbonates, conventional rockphysics models do not describe the relation between velocity and porosity for the Tarim Basin carbonates well. We propose the porous-grain-upper-boundary (PGU) model for estimating the relation between velocity and porosity for low-porosity carbonates. In this model, the carbonate sediments are treated as packed media of porous elastic grains, and the carbonate pores are divided into isolated and connected pores The PGU model is modified from the porous-grain-stiff-sand (PGST) model by replacing the critical porosity with the more practical isolated porosity. In the implementation, the effective elastic constants of the porous grains are calculated by using the differential effective medium (DEM) model. Then, the elastic constants of connected porous grains in dry rocks are calculated by using the modified upper Hashin-Shtrikman bound. The application to the Tarim carbonates shows that relative to other conventional effective medium models the PGU model matches the well log data well.; Geochemistry & Geophysics; SCI(E); 中国科学引文数据库(CSCD); 0; ARTICLE; 4; 411-422; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155585]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Guo Yu-Qian,Ma Hong-Da,Shi Kai-Bo,et al. Porous-grain-upper-boundary model and its application to Tarim Basin carbonates[J]. applied geophysics,2013.
APA	Guo Yu-Qian.,Ma Hong-Da.,Shi Kai-Bo.,Cao Hong.,Huang Lu-Zhong.,...&Hu Tian-Yue.(2013).Porous-grain-upper-boundary model and its application to Tarim Basin carbonates.applied geophysics.
MLA	Guo Yu-Qian,et al."Porous-grain-upper-boundary model and its application to Tarim Basin carbonates".applied geophysics (2013).