气候变化领域集成服务门户(CCPortal): Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction

CCPortal

DOI	10.1306/08161817214
	Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction
	Gorynski K.E.; Tobey M.H.; Enriquez D.A.; Smagala T.M.; Dreger J.L.; Newhart R.E.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:3
英文摘要	For oil-rich shales, current solvent extraction– and thermal extraction–based methods inaccurately measure hydrocarbon-filled porosity (w HC ). Moreover, the hydrocarbon composition is not characterized by either method. Here, we show how open-system programmed thermal extraction and pyrolysis, LECO total organic carbon, Archimedes bulk density, and helium pycnometry measurements are integrated to calculate oil and gas pore volumes, characterize their composition, and estimate mobility. Use of a modified multiramp, slow-heating thermal extract, and pyrolysis temperature program further subdivides the wHC. Saturate–aromatic–resin–asphaltene (SARA) separation and gas chromatography of solvent-extracted organic matter and thermally extracted oils are used to compositionally classify the wHC. The segregated bulk compositions of gas- and oil-filled porosity measured via this method are shown to overlap and are broken into the following categories: gas-filled porosity (~C 1 –C 14 ), light oil–filled porosity (~C 6 –C 36 ), and heavy oil–filled porosity (~C 32 –C 36 +). Furthermore, slow-heating multiramp thermal extraction can subdivide the light oil–filled porosity into four components capturing the C 11 –C 13 , C 12 –C 16 , C 14 –C 20 , and C 17 –C 36 ranges of the extractable organic matter. Analysis of solvent-extracted oils by SARA identifies abundant saturates and aromatics in the light oil–filled porosity and abundant resins and asphaltenes in the heavy oil–filled porosity. Low-maturity shales can be dominated by heavy (C 32 +) oils rich in asphaltene and resin fractions not observed in the produced fluid. The ratios of SARA components in the C 15 + fraction of produced fluid and core extract can be used to better estimate the potentially mobile wHC. Copyright ©2019. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Asphaltenes; Biogeochemistry; Biological materials; Crude oil; Gas chromatography; Gas oils; Heavy oil production; Hydrocarbons; Organic carbon; Porosity; Pyrolysis; Resins; Solvents; Bulk compositions; Extractable organic matter; Gas-filled porosities; Helium pycnometry; Hydrocarbon compositions; Pyrolysis temperature; Thermal extraction; Total Organic Carbon; Solvent extraction; asphaltene; extraction method; hydrocarbon; oil shale; organic matter; porosity; pyrolysis; quantitative analysis; solvent; thermal maturity
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/125072
作者单位	Bonanza Creek Energy, Denver, CO, United States; Encana Oil and Gas, Inc., Denver, CO, United States; Encana Oil and Gas, Inc., Calgary, AB, Canada
推荐引用方式 GB/T 7714	Gorynski K.E.,Tobey M.H.,Enriquez D.A.,et al. Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction[J],2019,103(3).
APA	Gorynski K.E.,Tobey M.H.,Enriquez D.A.,Smagala T.M.,Dreger J.L.,&Newhart R.E..(2019).Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction.AAPG Bulletin,103(3).
MLA	Gorynski K.E.,et al."Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction".AAPG Bulletin 103.3(2019).