C-13 LONGITUDINAL RELAXATION OF FLUIDS SATURATED IN OIL-RESERVOIR CORES BY MAS NMR

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	C-13 LONGITUDINAL RELAXATION OF FLUIDS SATURATED IN OIL-RESERVOIR CORES BY MAS NMR
	DU, YR; XIAO, LZ; YE, CH
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	1994-05-01
卷号	164 期号:2 页码:495-497
文献子类	Note
英文摘要	In this paper we present the C-13 relaxation measurements of fluids saturated in oil reservoir cores under the condition of magic angle spinning (MAS). The longitudinal relaxation of the fluids generally shows a biexponential process, which can be decomposed as a slower one plus a faster one. These two different processes are attributed to the motion of molecules which were distributed in macro- and micropores, respectively, the exchange of which is restricted. We therefore could measure the fraction of molecules in macropores and micropores in the core samples by relaxation decomposition. For molecules remaining in the pores, a very slow magic angle spinning rate can efficiently eliminate the line broadening due to inhomogeneous susceptibility. Measurements of various MAS rates and the spinning rate dependence of the relaxation behaviors are illustrated. A reasonable explanation is made based on the increase of exchange rate between molecules in different pores due to the sample spinning. (C) 1994 Academic Press, Inc.
WOS关键词	POROUS-MEDIA ; MAGNETIC-RESONANCE ; FLOW ; LIMESTONE
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:A1994NG89100028
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/12071]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	CHINESE ACAD SCI,WUHAN INST PHYS,MAGNET RESONANCE & ATOM & MOLEC PHYS LAB,POB 71010,WUHAN 430071,PEOPLES R CHINA
推荐引用方式 GB/T 7714	DU, YR,XIAO, LZ,YE, CH. C-13 LONGITUDINAL RELAXATION OF FLUIDS SATURATED IN OIL-RESERVOIR CORES BY MAS NMR[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,1994,164(2):495-497.
APA	DU, YR,XIAO, LZ,&YE, CH.(1994).C-13 LONGITUDINAL RELAXATION OF FLUIDS SATURATED IN OIL-RESERVOIR CORES BY MAS NMR.JOURNAL OF COLLOID AND INTERFACE SCIENCE,164(2),495-497.
MLA	DU, YR,et al."C-13 LONGITUDINAL RELAXATION OF FLUIDS SATURATED IN OIL-RESERVOIR CORES BY MAS NMR".JOURNAL OF COLLOID AND INTERFACE SCIENCE 164.2(1994):495-497.