The Observation of Residual Oil Evolution During Waterflooding Using NMR D-T (2) Maps

doi:10.1007/s00723-015-0711-2

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	The Observation of Residual Oil Evolution During Waterflooding Using NMR D-T (2) Maps
	Qi, Yukai 1; Liu, Naigui 2; Wang, Weimin 2
刊名	APPLIED MAGNETIC RESONANCE
	2015-10-01
卷号	46 期号:10 页码:1089-1098
DOI	10.1007/s00723-015-0711-2
文献子类	Article
英文摘要	By supplementing standard relaxation time measurements with diffusion information, nuclear magnetic resonance (NMR) D-T (2) mapping provides a powerful tool for characterizing fluids in a core. In this study, a D-T (2) mapping technique was designed and applied to investigate waterflooding behavior and pore-level residual oil distributions. NMR measurements were conducted at different stages of the waterflooding process, and corresponding D-T (2) maps were acquired. The oil and water signals were easily separated using a diffusion coefficient cut-off of 3 x 10(-6) cm(2)/s. The oil saturation values measured via the NMR method were highly consistent with the volumetric method results. The pore-level residual oil distributions could be calculated by analyzing the oil T (2) spectra during waterflooding. The injected water was found to preferentially displace oil in large and medium-sized pores having relatively low capillary pressures. The final residual oil saturation measured via the NMR method was 18.9 %, with 15.7 % occurring in medium-sized pores (10 ms < T (2) < 100 ms).
WOS关键词	POROUS-MEDIA ; RELAXATION ; DIFFUSION ; FLUID
WOS研究方向	Physics ; Spectroscopy
语种	英语
WOS记录号	WOS:000361469500003
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62235]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Peking Univ, Sch Elect Engn & Comp Sci, Inst Quantum Elect, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Qi, Yukai,Liu, Naigui,Wang, Weimin. The Observation of Residual Oil Evolution During Waterflooding Using NMR D-T (2) Maps[J]. APPLIED MAGNETIC RESONANCE,2015,46(10):1089-1098.
APA	Qi, Yukai,Liu, Naigui,&Wang, Weimin.(2015).The Observation of Residual Oil Evolution During Waterflooding Using NMR D-T (2) Maps.APPLIED MAGNETIC RESONANCE,46(10),1089-1098.
MLA	Qi, Yukai,et al."The Observation of Residual Oil Evolution During Waterflooding Using NMR D-T (2) Maps".APPLIED MAGNETIC RESONANCE 46.10(2015):1089-1098.