globalchange  > 过去全球变化的重建
DOI: 10.1306/072312l2O48
Scopus记录号: 2-s2.0-84875740687
论文题名:
Organic matter-hosted pore system, Marcellus Formation (Devonian), Pennsylvania
作者: Milliken K.L.; Rudnicki M.; Awwiller D.N.; Zhang T.
刊名: AAPG Bulletin
ISSN: 0149-1702
EISSN: 1558-9432
出版年: 2013
发表日期: 2013
卷: 97, 期:2
起始页码: 177
结束页码: 200
语种: 英语
Scopus关键词: Field emission scanning electron microscopy ; Hydrogen indices ; Mineral matrixes ; Morphology and size ; Positive correlations ; Thermal maturity ; Total Organic Carbon ; Vitrinite reflectance ; Biogeochemistry ; Biological materials ; Enamels ; Methane ; Organic compounds ; Stratigraphy ; Porosity ; bubble ; compaction ; Devonian ; helium ; methane ; organic matter ; pore space ; reflectance ; scanning electron microscopy ; sedimentary rock ; sequence stratigraphy ; size distribution ; thermal maturity ; total organic carbon ; vitrinite ; Pennsylvania ; United States
Scopus学科分类: Energy ; Earth and Planetary Sciences
英文摘要: The Marcellus Formation of Pennsylvania represents an outstanding example of an organic matter (OM)-hosted pore system; most pores detectable by field-emission scanning electron microscopy (FE-SEM) are associated with OM instead of mineral matrix. In the two wells studied here, total organic carbon (TOC) content is a stronger control on OM-hosted porosity than is thermal maturity. The two study wells span a maturity from late wet gas (vitrinite reflectance [RoJ, -1.0%) to dry gas (Ro, -2.1%). Samples with a TOC less than 5.5 wt. % display a positive correlation between TOC and porosity, but samples with a TOC greater than 5.5 wt. % display little or no increase in porosity with a further increasing TOC. In a subset of samples (14) across a range of TOC (2.3-13.6 wt. %), the pore volume detectable by FE-SEM is a small fraction of total porosity, ranging from 2 to 32% of the helium porosity. Importantly, the FE-SEM-visible porosity in OM decreases significantly with increasing TOC, diminishing from 30% of OM volume to less than 1% of OM volume across the range of TOC. The morphology and size of OM-hosted pores also vary systematically with TOC. The interpretation of this anticorrelation between OM content and SEM-visible pores remains uncertain. Samples with the lowest OM porosity (higher TOC) may represent gas expulsion (pore collapse) that was more complete as a consequence of greater OM connectivity and framework compaction, whereas samples with higher OM porosity [lower TOC) correspond to rigid mineral frameworks that inhibited compactional expulsion of methane-filled bubbles. Alternatively, higher TOC samples may contain OM (low initial hydrogen index, relatively unreactive) that is less prone to development of FE-SEM-detectable pores. In this interpretation, OM type, controlled by sequence-stratigraphic position, is a factor in determining pore-size distribution. Copyright © 2013. The American Association of Petroleum Geologists. All rights reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84875740687&doi=10.1306%2f072312l2O48&partnerID=40&md5=b2aafd628136fdadc27dcf99c3d98e6c
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13272
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

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Milliken K.L.,Rudnicki M.,Awwiller D.N.,et al. Organic matter-hosted pore system, Marcellus Formation (Devonian), Pennsylvania[J]. AAPG Bulletin,2013-01-01,97(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Milliken K.L.]'s Articles
[Rudnicki M.]'s Articles
[Awwiller D.N.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Milliken K.L.]'s Articles
[Rudnicki M.]'s Articles
[Awwiller D.N.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Milliken K.L.]‘s Articles
[Rudnicki M.]‘s Articles
[Awwiller D.N.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.