气候变化领域集成服务门户(CCPortal): Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley; Colombia

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DOI	10.1306/04101918107
	Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley; Colombia
	Thompson-Butler W.; Peters K.E.; Peters K.E.; Magoon L.B.; Scheirer A.H.; Moldowan J.M.; Blanco V.O.; Gonzalez R.E.; Graham S.A.; Zumberge J.E.; Wavrek D.A.
发表日期	2019
ISSN	0149-1423
起始页码	3003
结束页码	3034
卷号	103 期号:12
英文摘要	Six distinct oil tribes were established using multivariate statistical analysis of source-related biomarker and isotopic ratios for 73 crude oil samples from theMiddleMagdalena Valley (MMV), Colombia. These six tribes show a systematic distribution by both basin location and reservoir rock age and may originate from different source rocks or different organofacies of the same source rock. Biomarker and isotopic data further differentiate the tribes with respect to source rock depositional environment, lithology, organic matter type, and thermal maturity. The thermal maturity and reservoir interval for the northernmost tribe 5 suggest a middle Cretaceous Tablazo Formation source rock. In contrast, tribes 1 through 4 are likely derived from the primary regional source rock, the Upper Cretaceous La Luna Formation. However, we observe regional differences in bulk properties, thermal maturity, terrigenous input, and oxicity between the four La Luna-derived oil tribes. In addition, tribe 3 appears to result from end-member mixing between tribes 2 and 4. Finally, the southernmost tribe 6 is the only oil with terrigenous character. Diamondoid analysis shows the presence of significant secondary cracking in the tribe 6 oil with low levels of cracking present in oil samples from tribes 1 and 2 in the central MMV. This suggests a more deeply buried nonmarine source along the western flank of the Andean Eastern Cordillera. The integration of chemometric, biomarker, and diamondoid analyses have improved our understanding of the MMV petroleum system and advocate for the presence of three or more source rock intervals within the basin. © 2019 The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Biomarkers; Gasoline; Isotopes; Lithology; Multivariant analysis; Petroleum analysis; Rocks; Depositional environment; Eastern Cordillera; End member mixing; Multivariate statistical analysis; Organic matter types; Regional differences; Secondary cracking; Terrigenous inputs; Petroleum geology; biomarker; cracking (chemistry); Cretaceous; crude oil; isotopic composition; organic matter; petroleum hydrocarbon; reservoir characterization; reservoir rock; sampling; source rock; thermal maturity; Colombia; Cordillera Oriental [Colombia]; Magdalena Valley; Minute virus of mice
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/143740
作者单位	Department of Geological Sciences, Stanford University, Stanford, CA, United States; Schlumberger, Mill Valley, CA, United States; Biomarker Technologies, Inc., Rohnert Park, CA, United States; Instituto Colombiano del Petró leo, Ecopetrol, Bucaramanga, Colombia; Exploration Vice-Presidency, Onshore Division, Ecopetrol, Bogotá, Colombia; GeoMark Research Ltd., Houston, TX, United States; Petroleum Systems International, Inc., Salt Lake City, UT, United States
推荐引用方式 GB/T 7714	Thompson-Butler W.,Peters K.E.,Peters K.E.,et al. Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley; Colombia[J],2019,103(12).
APA	Thompson-Butler W..,Peters K.E..,Peters K.E..,Magoon L.B..,Scheirer A.H..,...&Wavrek D.A..(2019).Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley; Colombia.AAPG Bulletin,103(12).
MLA	Thompson-Butler W.,et al."Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley; Colombia".AAPG Bulletin 103.12(2019).