干旱区生态环境知识资源中心(Arid): Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran

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DOI	10.1007/s13202-021-01440-7
	Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran
	Hosseini, Azadeh; Saberi, Mohammad Hossein; ZareNezhad, Bahman
通讯作者	Saberi, MH (corresponding author)，Semnan Univ, Fac New Sci & Technol, Dept Petr Engn, Semnan, Iran.
来源期刊	JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
ISSN	2190-0558
EISSN	2190-0566
出版年	2021-12
英文摘要	Hydrocarbon exploration has long been based on such costly and time-intensive methods as geophysical surveys, geological studies, and drilling. In recent years, however, researchers have started to consider such inexpensive alternatives as surface geochemistry for hydrocarbon exploration. Some 100 years ago, the leakage of hydrocarbons onto the surface in the form of micro- and macro-seepages motivated researchers toward drilling a well in the Khourian Desert in the south of Semnan Province, Iran. Upon drilling the well, researchers found evidences of non-released (free) hydrocarbons. These findings drove further study of the area using surface geochemistry while considering the nearby hydrocarbon accumulation in Qom Formation. Conventional and indirect surface geochemical methods provide an insight into the relationship between surface and subsurface hydrocarbons. In the present work, the results of the Rock-Eval pyrolysis showed total organic carbon (TOC) values in the range of 0.31-4.13 wt.% and S-1 peaks between 0.07 and 27.35. Sulfur isotope analysis showed a sulfur isotopic value of -0.4. The study of hydrocarbon-oxidizing bacteria showed the presence of bacterial colonies in MSM at 1.22 x 10(6) cfu/g of soil sample. We further investigated surface changes due to the presence of free hydrocarbons and pH variations (4.9-8) resulted from the changes in the concentrations of calcium carbonate and iron. According to the results and given the presence of organic sulfur in the samples, the occurrence of Gach-i-turush and alike phenomena was proposed in this area. The results of geo-microbial prospecting method, surface secondary changes, and sulfur isotope studies were well in agreement with the characteristics of the existing hydrocarbon reserves in this area. Surface geochemical surveys can precede other geochemical and geophysical surveys to identify surface anomalies and hence focus on more probable locales of hydrocarbon accumulation in the Khourian Desert, central Iran.
英文关键词	Surface geochemistry Rock-Eval pyrolysis Sulfur isotope Geo-microbial prospecting Calcium carbonate contents Central Iran Basin
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000735721800005
WOS关键词	MICROBIAL PROSPECTING METHOD ; PETROLIFEROUS REGION ; FINDING OIL ; GAS ; BASIN ; INDICATORS ; FIELD ; AREA
WOS类目	Energy & Fuels ; Engineering, Petroleum ; Geosciences, Multidisciplinary
WOS研究方向	Energy & Fuels ; Engineering ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377043
作者单位	[Hosseini, Azadeh; Saberi, Mohammad Hossein] Semnan Univ, Fac New Sci & Technol, Dept Petr Engn, Semnan, Iran; [ZareNezhad, Bahman] Semnan Univ, Fac Chem Petr & Gas Engn, Semnan, Iran
推荐引用方式 GB/T 7714	Hosseini, Azadeh,Saberi, Mohammad Hossein,ZareNezhad, Bahman. Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran[J],2021.
APA	Hosseini, Azadeh,Saberi, Mohammad Hossein,&ZareNezhad, Bahman.(2021).Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran.JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY.
MLA	Hosseini, Azadeh,et al."Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran".JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY (2021).