Analysis of rock physics response of gas-bearing volcanic reservoir based on three-phase poroelastic theory

doi:10.1007/s11770-008-0035-1

	Analysis of rock physics response of gas-bearing volcanic reservoir based on three-phase poroelastic theory
	Wu Qingling 1,2; Zhao Haibo 2; Li Lailin 2; Fan Xingcai 2
刊名	APPLIED GEOPHYSICS
	2008-12-01
卷号	5 期号:4 页码:277-283
关键词	rock physics three-phase porous media seismic response and volcanic rock
ISSN号	1672-7975
DOI	10.1007/s11770-008-0035-1
文献子类	Article
英文摘要	Unlike previous theories with velocity and/or elastic modulus averaging, we use a three-phase porous rock physics model developed by Santos for analyzing the seismic response of two immiscible fluids in saturated porous media. Considering reservoir reference pressure and coupling drag of two fluids in pores, the effects of frequency, porosity, and gas saturation on the phase velocities of the P- and S-waves are discussed in detail under field conditions. The effects of porosity and gas saturation on Vp/Vs are also provided. The data for our numerical experiments are from a sample of deep volcanic rock from Daqing. The numerical results show that the frequency dispersion effect can be ignored for deep volcanic rocks with low porosity and low permeability. It is concluded that for deep volcanic rocks the effect of gas content in pores on Vp/Vs is negligible but the effect of porosity is significant when there is a certain amount of water contained in the pores. The accurate estimate of lithology and porosity in this case is relatively more important.
WOS关键词	PARTIALLY SATURATED ROCKS ; 2 IMMISCIBLE FLUIDS ; 2-PHASE FLUID ; ATTENUATION ; WAVE ; VELOCITIES ; MODEL
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000262724100003
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70071]
专题	中国科学院地质与地球物理研究所
通讯作者	Wu Qingling
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Inst Daqing OilField Co Ltd, Res Inst Explorat & Dev, Daqing 163712, Peoples R China
推荐引用方式 GB/T 7714	Wu Qingling,Zhao Haibo,Li Lailin,et al. Analysis of rock physics response of gas-bearing volcanic reservoir based on three-phase poroelastic theory[J]. APPLIED GEOPHYSICS,2008,5(4):277-283.
APA	Wu Qingling,Zhao Haibo,Li Lailin,&Fan Xingcai.(2008).Analysis of rock physics response of gas-bearing volcanic reservoir based on three-phase poroelastic theory.APPLIED GEOPHYSICS,5(4),277-283.
MLA	Wu Qingling,et al."Analysis of rock physics response of gas-bearing volcanic reservoir based on three-phase poroelastic theory".APPLIED GEOPHYSICS 5.4(2008):277-283.