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)

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