气候变化领域集成服务门户(CCPortal): Source potential and reservoir characterization of the cambay shale; cambay basin; India: Implications for tight gas and tight oil resource development

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DOI	10.1306/03162017174
	Source potential and reservoir characterization of the cambay shale; cambay basin; India: Implications for tight gas and tight oil resource development
	Hafiz M.; Hakhoo N.; Bhat G.M.; Kanungo S.; Thusu B.; Craig J.; Ahmed W.
发表日期	2020
ISSN	0149-1423
起始页码	1707
结束页码	1749
卷号	104 期号:8
英文摘要	New organic-geochemical investigations of the Eocene Cambay Shale (Cambay Basin, India) from five wells and an open-cast lignite mine reveal that the total organic carbon ranges from 0.37 to 10.68 wt. %, with an average of 2.43 wt. %. The pseudo-Van Krevelen diagram, hydrogen index versus the maximum pyrolysis yield temperature (Tmax) crossplot, and the visual kerogen assessment of the Cambay Shale indicate the dominance of type III kerogen, with some well samples showing mixed type III and II kerogen. The vitrinite reflectance values range between 0.46% and 0.7%, with Tmax values ranging from 387°C to 441°C and are consistent with an immature to early oil generation stage. The dominance of vitrinite macerals and high pristane-phytane (Pr/ Ph) ratios (>6) of the well samples indicate an oxic to dysoxic depositional environment, whereas the presence of Botryococcus braunii and low Pr/Ph ratios (<1) in the lignite mine samples suggesting a more reducing brackish water environment. The estimation of hydrocarbons generation, expulsion, and retention data suggest a low retention of 10%-12% of generated hydrocarbons within the Cambay Shale. The mineralogical data show an abundance of clay minerals (average 62.9%), implying poor to moderate mineral brittleness index. The kerogen type and maturity level along with the high clay content and poor to moderate brittleness indicate low fracability, thereby restricting the production potential of the Cambay Shale for tight gas or tight oil exploration. © 2020. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Brittleness; Fracture mechanics; Hydrocarbons; Kerogen; Lignite; Lignite mines; Organic carbon; Plasticity; Reflection; Tight gas; Botryococcus braunii; Brittleness index; Depositional environment; Geochemical investigations; Hydrocarbons generation; Reservoir characterization; Total Organic Carbon; Vitrinite reflectance; Petroleum prospecting; bacterium; brackish water; brittle medium; coal mine; Eocene; gas production; hydrocarbon generation; hydrocarbon reservoir; hydrogen; lignite; oil production; oil shale; oxic conditions; pyrolysis; source rock; vitrinite; Cambay Basin; Gujarat; India; Botryococcus braunii
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/143683
作者单位	Government Maulana Azad Memorial College, Jammu and Kashmir, India; Institute of Energy Research and Training (IERT), University of Jammu, Jammu and Kashmir, India; IERT, University of Jammu, Jammu and Kashmir, India; Postgraduate Department of Geology, University of Jammu, Jammu and Kashmir, India; Energy and Geoscience Institute (EGI), University of Utah, Salt Lake City, UT, United States; Department of Geology and Geophysics, University of Utah, Salt Lake City, UT, United States; Maghreb Petroleum Research Group, Earth Sciences Department, University College London, United Kingdom; Eni Upstream and Technical Services, Milan, Italy
推荐引用方式 GB/T 7714	Hafiz M.,Hakhoo N.,Bhat G.M.,et al. Source potential and reservoir characterization of the cambay shale; cambay basin; India: Implications for tight gas and tight oil resource development[J],2020,104(8).
APA	Hafiz M..,Hakhoo N..,Bhat G.M..,Kanungo S..,Thusu B..,...&Ahmed W..(2020).Source potential and reservoir characterization of the cambay shale; cambay basin; India: Implications for tight gas and tight oil resource development.AAPG Bulletin,104(8).
MLA	Hafiz M.,et al."Source potential and reservoir characterization of the cambay shale; cambay basin; India: Implications for tight gas and tight oil resource development".AAPG Bulletin 104.8(2020).