天然气地质学

孤岛油田馆陶组含油层系多源供烃判识及成藏分析

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  • 中国石化胜利油田分公司地质科学研究院,山东 东营 257015
王忠(1968-),男,四川宜宾人,工程师,主要从事油气地球化学综合研究.

收稿日期: 2010-09-21

  修回日期: 2011-05-02

  网络出版日期: 2011-06-10

基金资助

国家自然科学基金项目(编号:41072096)资助.

Oil Sources in Multi directions and Accumulation Analysis in Guantao Formation of Gudao Oilfield in Zhanhua Sag

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  • Institute of Geological Science,Shengli Oilfield,Dongying 257015,China

Received date: 2010-09-21

  Revised date: 2011-05-02

  Online published: 2011-06-10

摘要

济阳坳陷孤岛油田馆陶组油气资源丰富,但油气来源复杂。通过对该区烃源岩与原油生物标志化合物特征的精细对比分析认为,孤岛油田馆陶组原油普遍为“混源油”,由渤南洼陷沙四上亚段烃源岩与渤南、孤北、孤南3个生油洼陷沙三下亚段烃源岩提供,渤南洼陷是孤岛油田的主要油气来源,沙四上亚段碳酸盐岩生成的原油遍及孤岛油田的各个区块。根据生物标志化合物参数的变化规律划分了各洼陷的供烃范围。孤岛油田至少经历了2期油气充注成藏,后期充注是最重要的一期成藏,孤岛油田目前所获得的储量主要来自后期成藏。

本文引用格式

王忠 . 孤岛油田馆陶组含油层系多源供烃判识及成藏分析[J]. 天然气地球科学, 2011 , 22(3) : 399 -406 . DOI: 10.11764/j.issn.1672-1926.2011.03.399

Abstract

There are abundant hydrocarbon resources in the Guantao Formation of Gudao oilfield in the Zhanhua sag.Biomarkers of the oils from this area suggest oil\|to\|source correlation.The oils are generally “mixed oils”,mainly from the source rocks of the upper Es4 of Bonan sag and the others from the lower Es3 of Bonan,Gubei sag and Gunan sag.Oils generated from the upper Es4 of Bonan sag are distributed every block of Gudao oilfield,and those from the other three sags are in the designated ranges according to the variation regularity of biomarker parameter.The oils of the Guantao Formation have been infused twice at least,and the late accumulation is the most important,from which the petroleum reserves mainly originate.

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