DOI: 10.1002/2015GL066400
论文题名: Nonuniversality of the Archie exponent due to multifractality of resistivity well logs
作者: Dashtian H. ; Yang Y. ; Sahimi M.
刊名: Geophysical Research Letters
ISSN: 0094-8297
EISSN: 1944-8028
出版年: 2015
卷: 42, 期: 24 起始页码: 10655
结束页码: 10662
语种: 英语
英文关键词: Archie's law
; cementation factor
; Hurst exponent
; hydrocarbon reservoir
; long-range correlations
; well logs
Scopus关键词: Cementing (shafts)
; Electric logging
; Fractals
; Petroleum reservoir engineering
; Porosity
; Porous materials
; Wavelet transforms
; Archie's Law
; Cementation factor
; Hurst exponents
; Hydrocarbon reservoir
; Long range correlations
; Well logs
; Well logging
; cementation
; clay
; correlation
; data set
; electrical resistivity
; fractal analysis
; gas field
; hydrocarbon reservoir
; numerical model
; oil field
; outcrop
; porosity
; porous medium
; sedimentary rock
; wavelet analysis
; well logging
; Iran
英文摘要: Archie's law expresses a relation between the formation factor F of porous media and their porosity φ, Fâ φ-m, where m is the Archie or the cementation exponent. Despite widespread use of Archie's law, the value of m and whether it is universal and independent of the type of reservoir have remained controversial. We analyze various porosity and resistivity logs along 36 wells in six Iranian oil and gas reservoirs using wavelet transform coherence and multifractal detrended fluctuation analysis. m is estimated for two sets of data: one set contains the resistivity data that include those segments of the well that contain significant clay content and one without. The analysis indicates that the well logs are multifractal and that due to the multifractality the exponent m is nonuniversal. Thus, analysis of the resistivity of laboratory or outcrop samples that are not multifractal yields estimates of m that are not applicable to well logs in oil or gas reservoirs. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955174755&doi=10.1002%2f2015GL066400&partnerID=40&md5=0b917a202f5a3a8b0062ed23fb5f3776
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7913
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: Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, United States
Recommended Citation:
Dashtian H.,Yang Y.,Sahimi M.. Nonuniversality of the Archie exponent due to multifractality of resistivity well logs[J]. Geophysical Research Letters,2015-01-01,42(24).