稀土元素灰色关联法用于南方高演化油源示踪

doi:10.7623/syxb2012S1015

石油学报 ›› 2012, Vol. 33 ›› Issue (S1): 126-131.DOI: 10.7623/syxb2012S1015

稀土元素灰色关联法用于南方高演化油源示踪

张殿伟　刘文汇　高　波　王　杰

中国石油化工股份有限公司石油勘探开发研究院　北京　100083

收稿日期:2011-11-07 修回日期:2012-03-26 出版日期:2012-08-25 发布日期:2012-08-30
通讯作者: 张殿伟
作者简介:张殿伟，男，1977年11月生，1999年获兰州大学地质学学士学位，2005年获中国科学院兰州地质研究所博士学位，现为中国石油化工股份有限公司石油勘探开发研究院高级工程师，主要从事油气地球化学研究。
基金资助:
国家重点基础研究发展计划(973)项目（2012CB214800）资助。

Application of REE-based gray-correlation analysis method to trace oil sources of high evolution degrees in south China

ZHANG Dianwei　LIU Wenhui　GAO Bo　WANG Jie

Received:2011-11-07 Revised:2012-03-26 Online:2012-08-25 Published:2012-08-30

摘要/Abstract

摘要：

中国南方发育大量古油藏，并具有高演化特征，由于常规油源对比指标在高演化下存在的不确定性，导致一些古油藏在油源问题上仍存在一些分歧。笔者引入无机元素稀土元素作为对比指标，利用油源对比的灰色过程特性，通过计算古油藏沥青与可能烃源岩关联度的方法进行南方高演化古油藏的油源对比。以南丹泥盆系罗富组沥青、通山半坑古油藏、慈利南山坪古油藏、城口庙坝剖面沥青为例，进行油源的示踪。对比结果表明，沥青与源岩之间的稀土元素具有较高的关联度，而与非亲缘关系的烃源岩关联度较低，通过对比关联度大小，可以识别油源关系，并验证了稀土元素灰色关联法的有效性，可以作为传统有机地球化学示踪指标的重要补充。

Abstract:

A large number of paleo-reservoirs of high evolution degrees were developed well in South China. Since conventional oil-source correlation indicators have uncertainty in the case of high evolution, there still exist some divergences in the oil sources of paleo-reservoirs. Inorganic rare earth elements (REE) are introduced as correlation indicators to make oil-source correlation of southern high evolution paleo-reservoirs with considerations of gray process characteristics of oil-source correlation and by calculating the degree of association between paleo-reservoir bitumen and possible hydrocarbon source rocks. To test the effect of the method, tracing of oil sources is conducted in the asphalt in Luofu Formation of Nandan Devonian, Bankeng paleo-reservoir of Tongshan, Nanshanping paleo-reservoir of Cili and profile asphalt in Miaoba of Chengkou. The comparison results show that there is a close correlation between the asphalt and source rocks in the rare earth elements, but a weak correlation with unrelated hydrocarbon source rocks; oil source relationship can be identified by comparing the degree of correlation; the effectiveness of rare earth element gray correlation method is verified and the method can be used as an important supplement to conventional organic geochemical tracer indicators.

Key words: rare earth element, gray correlation analysis method, high evolution, oil source tracer

张殿伟　刘文汇　高　波　王　杰. 稀土元素灰色关联法用于南方高演化油源示踪[J]. 石油学报, 2012, 33(S1): 126-131.

ZHANG Dianwei　LIU Wenhui　GAO Bo　WANG Jie. Application of REE-based gray-correlation analysis method to trace oil sources of high evolution degrees in south China[J]. ACTA PETROLEI SINICA, 2012, 33(S1): 126-131.

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稀土元素灰色关联法用于南方高演化油源示踪

Application of REE-based gray-correlation analysis method to trace oil sources of high evolution degrees in south China

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