| DOI: | 10.1306/06301010047
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| Scopus记录号: | 2-s2.0-79952383610
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| 论文题名: | Effect of pore structure on electrical resistivity in carbonates |
| 作者: | Verwer K.; Eberli G.P.; Weger R.J.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1881
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| EISSN: | 1558-9611
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| 出版年: | 2011
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| 发表日期: | 2011
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| 卷: | 95, 期:2 | | 起始页码: | 175
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| 结束页码: | 190
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| 语种: | 英语
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| Scopus关键词: | Absolute number
; Carbonate rock
; Combined effect
; Digital image analysis
; Electrical resistivity
; High permeability
; High resistivity
; Large pores
; Lithology discrimination
; Macropores
; Modeling studies
; Orders of magnitude
; Pore networks
; Pore throat
; Pore types
; Structure characteristic
; Thin section
; Water saturations
; Carbonates
; Carbonation
; Cementing (shafts)
; Electric charge
; Electric conductivity
; Electric logging
; Hydrocarbon refining
; Hydrocarbons
; Lithology
; Pore structure
; Porosity
; Rocks
; Electric variables measurement
; borehole
; carbonate rock
; cementation
; digital image
; electrical resistivity
; estimation method
; hydrocarbon
; lithology
; logging (geophysics)
; macropore
; magnitude
; mathematical analysis
; numerical model
; permeability
; porosity
; quantitative analysis
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | The electrical resistivity log has proven to be a powerful tool for lithology discrimination, correlation, porosity evaluation, hydrocarbon indication, and calculation of water saturation. Carbonate rocks develop a variety of pore types that can span several orders of magnitude in size and complexity. A link between the electrical resistivity and the carbonate pore structure has been inferred, although no detailed understanding of this relationship exists. Seventy-one plugs from outcrops and boreholes of carbonates from five different areas and ages were measured for electrical resistivity properties and quantitatively analyzed for pore structure using digital image analysis from thin sections. The analysis shows that in addition to porosity, the combined effect of microporosity, pore network complexity, pore size of the macropores, and absolute number of pores are all influential for the flow of electric charge. Samples with small pores and an intricate pore network have a low cementation factor, whereas samples with large pores and a simple pore network have high values for cementation factor. Samples with separatevug porosity have the highest cementation factor. The results reveal that (1) in carbonate rocks, both pore structure and the absolute number of pores (and pore connections) seem more important in controlling the electrical resistivity, instead of the size of the pore throats, as suggested by previous modeling studies; (2) samples with high resistivity can have high permeability; large simple pores facilitate flow of fluid, but fewer numbers of pores limit the flow of electric charge; and [3] pore-structure characteristics can be estimated from electrical resistivity data and used to improve permeability estimates and refine calculations of water saturation. Copyright © 2011. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952383610&doi=10.1306%2f06301010047&partnerID=40&md5=14539cf7e24d7dd4565a39a6c82a2b1f
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13450
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| 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: | |
Verwer K.,Eberli G.P.,Weger R.J.. Effect of pore structure on electrical resistivity in carbonates[J]. AAPG Bulletin,2011-01-01,95(2)
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