DOI: 10.1002/2015GL065100
论文题名: Flow visualization of CO2 in tight shale formations at reservoir conditions
作者: Fernø M.A. ; Hauge L.P. ; Uno Rognmo A. ; Gauteplass J. ; Graue A.
刊名: Geophysical Research Letters
ISSN: 0094-9194
EISSN: 1944-8925
出版年: 2015
卷: 42, 期: 18 起始页码: 7414
结束页码: 7419
语种: 英语
英文关键词: CCUS
; diffusion
; EOR
; explicit CO2 flow
; oil recovery
; shale
Scopus关键词: Diffusion
; Flow of fluids
; Oil shale
; Oil well flooding
; Petroleum reservoir engineering
; Porous materials
; Positron emission tomography
; Shale
; Shale oil
; Visualization
; CCUS
; Effective diffusion coefficients
; Engineering applications
; EOR
; Explicit CO2 flow
; Oil recoveries
; Reservoir conditions
; Technical advancement
; Flow visualization
; carbon dioxide
; oil field
; porous medium
; recovery
; reservoir
; shale
; tomography
; visualization
英文摘要: The flow of CO2 in porous media is fundamental to many engineering applications and geophysical processes. Yet detailed CO2 flow visualization remains challenging. We address this problem via positron emission tomography using 11C nuclides and apply it to tight formations - a difficult but relevant rock type to investigate. The results represent an important technical advancement for visualization and quantification of flow properties in ultratight rocks and allowed us to observe that local rock structure in a layered, reservoir shale (K-=-0.74-μdarcy) sample dictated the CO2 flow path by the presence of high-density layers. Diffusive transport of CO2 in a fractured sample (high-permeable sandstone) was also visualized, and an effective diffusion coefficient (Di-=-2.2-·-10-8-m2/s) was derived directly from the dynamic distribution of CO2. During CO2 injection tests for oil recovery from a reservoir shale sample we observed a recovery factor of RF-=-55% of oil in place without fracturing the sample. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945491229&doi=10.1002%2f2015GL065100&partnerID=40&md5=8a2c3b623c892b0503eea118e28a96cf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8810
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Physics and Technology, University of Bergen, Bergen, Norway
Recommended Citation:
Fernø M.A.,Hauge L.P.,Uno Rognmo A.,et al. Flow visualization of CO2 in tight shale formations at reservoir conditions[J]. Geophysical Research Letters,2015-01-01,42(18).