| DOI: | 10.1306/08201414055
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| Scopus记录号: | 2-s2.0-84929302017
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| 论文题名: | Organic matter pores and oil generation in the Tuscaloosa marine shale |
| 作者: | Lu J.; Ruppel S.C.; Rowe H.D.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1509
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| EISSN: | 1558-9239
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| 出版年: | 2015
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| 发表日期: | 2015
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| 卷: | 99, 期:2 | | 起始页码: | 333
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| 结束页码: | 357
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| 语种: | 英语
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| Scopus关键词: | Biogeochemistry
; Biological materials
; Enamels
; Field emission microscopes
; Kerogen
; Minerals
; Oil shale
; Organic carbon
; Organic compounds
; Petrography
; Porosity
; Scanning electron microscopy
; Shale
; Field emission scanning electron microscopy
; Hydrocarbon yield
; Hydrogen indices
; Marine shales
; Organic matter maturations
; Thermal maturity
; Total Organic Carbon
; Upper Cretaceous
; Shale oil
; Cretaceous
; data set
; kerogen
; mineralogy
; oil production
; organic matter
; petrography
; porous medium
; quantitative analysis
; shale
; thermal maturity
; total organic carbon
; Alabama
; Tuscaloosa
; United States
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | The Upper Cretaceous Tuscaloosa marine shale (TMS) is an oil play across central Louisiana and southwest Mississippi. The lower TMS is characterized by relatively high log resistivity (>5 ohm-m) compared to the upper part, and this elevated resistivity zone (ERZ) has become the primary target zone. This study is to investigate the cause of variation in log resistivity based on the data of petrography, mineralogy, and organic matter property and porosity. The results suggest that log resistivity is not controlled by mineralogy or porosity; rather, it is associated with oil generation during organic matter maturation. Total organic carbon (TOC) content, Rock-Eval free hydrocarbon yield (S1), and hydrogen index (HI) in the studied core increase with depth. Porosity within organic matter (OM), measured by field-emission scanning electron microscopy (FE-SEM), is also higher within the ERZ. The correlated variations among TOC content, S1 values, OM porosity, and log resistivity suggest that the higher log resistivity resulted from in situ oil generation and that the OM pores were generated during oil generation. Thermal maturity varies little in the core; whereas the downward-increasing HI indicates an increasing abundance of oil-prone type II kerogen. Higher OM porosity appears to be related to the greater proportion of type II kerogen in the ERZ. The data set demonstrates that higher contents of TOC and oil-prone kerogen are the combined factors for higher oil generation, therefore, higher log resistivity in the ERZ. The study provides a quantitative relationship between OM porosity and oil generation. Copyright © 2015. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929302017&doi=10.1306%2f08201414055&partnerID=40&md5=820dbca90d0d7ee008e2ed21caca2d89
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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/13080
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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: | |
Lu J.,Ruppel S.C.,Rowe H.D.. Organic matter pores and oil generation in the Tuscaloosa marine shale[J]. AAPG Bulletin,2015-01-01,99(2)
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