DOI: 10.1306/07061514205
Scopus记录号: 2-s2.0-84949459320
论文题名: Electrical and fluid flow properties of carbonate microporosity types from multiscale digital image analysis and mercury injection
作者: Norbisrath J.H. ; Eberli G.P. ; Laurich B. ; Desbois G. ; Weger R.J. ; Urai J.L.
刊名: AAPG Bulletin
ISSN: 0149-1446
EISSN: 1558-9176
出版年: 2015
发表日期: 2015
卷: 99, 期: 11 起始页码: 2077
结束页码: 2098
语种: 英语
Scopus关键词: Carbonates
; Carbonation
; Crystalline rocks
; Image analysis
; Ion beams
; Mercury (metal)
; Microporosity
; Pore size
; Porous materials
; Rocks
; Scanning electron microscopy
; Sedimentary rocks
; Accurate quantifications
; Conventional techniques
; Digital image analysis
; Intrinsic microporosity
; Mercury injection capillary pressures
; Petrophysical properties
; Power law distribution
; Two-dimensional cross sections
; Flow of fluids
; capillary pressure
; carbonate rock
; cementation
; digital image
; electrical resistivity
; fluid flow
; image analysis
; mercury (element)
; mudstone
; porosity
; power law
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Electrical and fluid flow properties of porous media are directly related to the morphology of pores and the connectivity of the pore network. Both are closely linked to the amount and type of intrinsic microporosity in carbonate rocks, which is not resolved by conventional techniques. Broad-ion-beam (BIB) milling produces high-quality true-two-dimensional cross sections for scanning electron microscopy (SEM) and enables accurate quantification of carbonate microporosity for the first time. The combination of BIB-SEM mosaics with optical micrographs yields a multiscale digital image analysis (MsDIA) spanning six orders of magnitude. In this paper, the pore structures of 12 different carbonate rock samples from various rock types are quantified using MsDIA. Mercury injection capillary pressure measurements are used to assess pore-throat properties. The quantified porestructure parameters are correlated with plug measurements of electrical resistivity and permeability. Results indicate that petrophysical properties are closely linked to the type of microporosity, which is distinctive for a certain rock type. Rock types with crystalline microporosity, such as mudstone and dolomite, generally show good connectivity, in which the size of the pore-network determines if the rock favors either hydraulic or electric flow. Rock types with intercement or micromoldic microporosity, such as bindstone and travertine, show variations in connectivity due to layering and moldic micropores of biological origin. Furthermore, pore-size distributions (PSD) follow a power law in all samples, despite their depositional and diagenetic differences. The slope of the PSD correlates with the electric properties, in which samples with a steeper slope show lower cementation factors. The linearity of the power law distribution enables predictions of pore populations outside the investigated length scales. Copyright © 2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949459320&doi=10.1306%2f07061514205&partnerID=40&md5=2c73fe7f8b70656ed3c8a4fb407b5ff3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13017
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Norbisrath J.H.,Eberli G.P.,Laurich B.,et al. Electrical and fluid flow properties of carbonate microporosity types from multiscale digital image analysis and mercury injection[J]. AAPG Bulletin,2015-01-01,99(11)