油显示岩心样品Slice实验研究及其启示

罗情勇; 钟宁宁; 李可文

doi:10.11781/sysydz201502252

油显示岩心样品Slice实验研究及其启示

doi: 10.11781/sysydz201502252

1.
中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249
2. 广东省企业自主创新促进会, 广州 510060

基金项目: 国家自然科学基金(40472076)和中国石油大学(北京)科研基金(2462014YJRC022)资助。

详细信息

作者简介:
罗情勇(1987—),男,讲师,从事油气地球化学和有机岩石学研究。E-mail:luoqingyong1987@foxmail.com。

通讯作者:
钟宁宁(1960—),男,教授,博士生导师,从事地球化学教学与科研工作。E-mail:nnzhongxp@cup.edu.cn。

中图分类号: TE135
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出版历程
- 收稿日期: 2014-04-11
- 修回日期: 2015-01-20
- 刊出日期: 2015-03-28

Slice experiment of oil-bearing core rock and its implications

1.
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2. Guangdong Promotion Association of Enterprise Innovation, Guangzhou, Guangdong 510060, China

摘要

摘要: 钻井、采样、储存和实验过程中对岩石样品所产生的污染,会影响生物标志物信息的真实性,尤其对于前寒武纪的样品而言,甚至有可能会导致地球早期生命起源和演化的错误解释。通过对中元古界洪水庄组含油显示样品的"剥洋葱式"切片(Slice)实验,分析了污染对分子生物标志物的影响。结果表明:饱和烃生物标志物在不同"洋葱片"样品之间差异较大,而芳烃生物标志物的差异较小;除个别参数外,大部分生物标志物参数在内外切片样品之间均存在较大差异。由于在内切片中没有检测到甾烷,因此,中元古界洪水庄组中甾烷的存在与否有待进一步验证。切除样品外皮后进行有机地球化学实验分析能更好的避免污染。
- 污染 /
- 切片实验 /
- 油显示样品 /
- 生物标志物 /
- 洪水庄组 /
- 华北北部
Abstract: The contamination of rocks during drilling, sampling, storage or handling processes will affect the organic geochemical information of biomarkers, and will even lead to the wrong interpretations of the origin and evolution of early life on the earth especially for preCambrian sediments. A slice experiment was employed on the oil-bearing argillaceous dolomite from the Hongshuizhuang Formation in order to discuss the influence of contamination on biomarkers. The aliphatic biomarkers showed a big difference between outside oil show (OOS) and inside oil show (IOS), whereas the difference for the aromatic biomarkers was small. Most of the biomarker ratios showed a considerable discrepancy between OOS and IOS except a few parameters. Steranes were not detected in the IOS, indicating that the existence of steranes remained for further validation. It was recommended that cutting the surface of core samples before organic geochemical experiments could avoid contamination.
- contamination /
- slice experiment /
- oil-bearing sample /
- biomarker /
- Hongshuizhuang Formation /
- northern North China

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参考文献(18)

[1]	Brocks J J.Millimeter-scale concentration gradients of hydrocarbons in Archean shales:live-oil escape or fingerprint of contamination?[J].Geochimica et Cosmochimica Acta,2011,75(11):3196-3213.
[2]	Brocks J J,Grosjean E,Logan G A.Assessing biomarker syngeneity using branched alkanes with quaternary carbon (BAQCs) and other plastic contaminants[J].Geochimica et Cosmochimica Acta,2008,72(3):871-888.
[3]	Sherman L S,Waldbauer J R,Summons R E.Improved methods for isolating and validating indigenous biomarkers in Precambrian rocks[J].Organic Geochemistry,2007,38(12):1987-2000.
[4]	Summons R E,Powell T G,Boreham C J.Petroleum geology and geochemistry of the Middle Proterozoic McArthur Basin,Nor-thern Australia:Ⅲ.Composition of extractable hydrocarbons[J].Geochimica et Cosmochimica Acta,1988,52(7):1747-1763.
[5]	Brocks J J,Logan G A,Buick R,et al.Archean molecular fossils and the early rise of eukaryotes[J].Science,1999,285(5430):1033-1036.
[6]	Brocks J J,Buick R,Summons R E,et al.A reconstruction of Archean biological diversity based on molecular fossils from the 2.78 to 2.45 billion-year-old Mount Bruce Supergroup,Hamersley Basin,Western Australia[J].Geochimica et Cosmochimica Acta,2003,67(22):4321-4335.
[7]	Wang T G,Simoneit B R T.Tricyclic terpanes in Precambrian bituminous sandstone from the eastern Yanshan region,North China[J].Chemical Geology,1995,120(1-2):155-170.
[8]	George S C,Volk H,Dutkiewicz A,et al.Preservation of hydrocarbons and biomarkers in oil trapped inside fluid inclusions for > 2 billion years[J].Geochimica et Cosmochimica Acta,2008,72(3):844-870.
[9]	Moldowan J M,Fago F J,Carlson R M,et al.Rearranged hopanes in sediments and petroleum[J].Geochimica et Cosmochimica Acta,1991,55(11):3333-3353.
[10]	Peters K E,Walters C C,Moldowan J M.The biomarker guide,vo-lume 2:Biomarkers and isotopes in petroleum exploration and earth history[M].Cambridge,UK:Cambridge University Press,2005.
[11]	Radke M,Welte D.The methylphenanthrene index (MPI):a maturity parameter based on aromatic hydrocarbons[M]//Bjoroy M.Advances in Organic Geochemistry.Chichester:Wiley,1983:504-512.
[12]	Radke M,Welte D H,Willsch H.Geochemical study on a well in the Western Canada Basin:relation of the aromatic distribution pattern to maturity of organic matter[J].Geochimica et Cosmochimica Acta,1982,46(1):1-10.
[13]	Kvalheim O M,Christy A A,Telns N,et al.Maturity determination of organic matter in coals using the methylphenanthrene distribution[J].Geochimica et Cosmochimica Acta,1987,51(7):1883-1888.
[14]	Radke M,Willsch H,Leythaeuser D,et al.Aromatic components of coal:relation of distribution pattern to rank[J].Geochimica et Cosmochimica Acta,1982,46(10):1831-1848.
[15]	George S C,Lisk M,Eadington P J,et al.Comparison of palaeo oil charges with currently reservoired hydrocarbons using the geochemistry of oil-bearing fluid inclusions[C]//SPE Asia PacificOil and Gas Conference.Adelaide:SPE,1996:159-171.
[16]	George S C,Krieger F W,Eadington P J,et al.Geochemical comparison of oil-bearing fluid inclusions and produced oil from the Toro sandstone,Papua New Guinea[J].Organic Geochemistry 1997,26(3/4):155-173.
[17]	van Aarssen B G K,Bastow T P,Alexander R,et al.Distributions of methylated naphthalenes in crude oils:indicators of maturity,biodegradation and mixing[J].Organic Geochemistry,1999,30(10):1213-1227.
[18]	钟宁宁,张枝焕,黄志龙,等.燕山地区中—新元古界有机质热演化史与油气成藏史.北京:中国石油大学(北京),2009. Zhong Ningning,Zhang Zhihuan,Huang Zhilong,et al.Thermal maturity evolution and hydrocarbon accumulation histories of Meso-Neoproterozoic in Yanshan area.Beijing:China University of Petroleum,2009.