大港滩海区中浅层油岩地球化学特征及油气来源分析

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大港滩海区中浅层油岩地球化学特征及油气来源分析

高玉巧¹,刘立¹,廖前进²,孙晓明²,腾云³

1.吉林大学地球科学学院，长春 130061；2.大港油田勘探开发技术研究中心，天津 300280；3.河南石油勘探局地质录井公司，河南南阳 473132

收稿日期:2005-11-21 修回日期:1900-01-01 出版日期:2006-07-26 发布日期:2006-07-26
通讯作者: 刘立

Geochemical Characteristics and Origin of Oil and Its Source Rocks in the ShallowMiddle Level:A Case Study of Tangjiahe Oil Field

GAO Yuqiao1, LIU Li¹, LIAO Qian-jin², SUN Xiao-ming², TENG Yun³

1.College of Earth Sciences, Jilin University, Changchun 130061,China；2.Research Center of Exploration and Development, Dagang Oilfield Company of CNPC, Tianjin 300280,China；3.Geological Logging Company, Henan Petroleum Exploration Bureau SinoPec, Nanyang, Henan 473132,China

Received:2005-11-21 Revised:1900-01-01 Online:2006-07-26 Published:2006-07-26
Contact: LIU Li

摘要/Abstract

摘要： 通过唐家河油田中浅层各层系原油及滩海区所有层系烃源岩的碳同位素、色谱、色谱-质谱等地球化学分析，选取δ¹³C、合适的生物标志物参数，即G/C₃₀H、O/C₃₀H、Ts/Tm、ααRC₂₇/C₂₉、ααRC₂₈/C₂₉、C₃₁22S/(S+R)、C₂₉20S/(S+R)等进行油源综合对比。结果表明，唐家河油田中浅层各层系原油来源于深层沙三段及沙二段烃源岩,而沙一段和东营组的贡献不大。考虑到沙二段烃源岩厚度小，生油能力有限，唐家河油田沙三段烃源岩是最主要的油气来源。

关键词: 油气来源, 碳同位素, 生物标志物, 中浅层, 唐家河油田

Abstract: According to the geochemistry analyses such as carbon isotope, chromatogram and chromatogrammass spectrum of crude oil from the main layers in shallowmiddle level and their source rocks from all layers in Tangjiahe oil field, δ¹³C and appropriate biological marker parameters, e.g. G/C₃₀H,O/C₃₀H,Ts/Tm,ααRC₂₇/C₂₉,ααRC₂₈/C₂₉,C₃₁22S/(S+R),C₂₉20S/(S+R) are chosen to correlate oil and its source rocks. It is indicated that crude oil in the layers of shallowmiddle level is derived not from Member 1 of the Shahejie Formation and the Dongying Formation, but from Member 3 and Member 2 of Shahejie Formation in the deep level. In view of a little thickness and limited oilforming potential of source rock of Member 2 of the Shahejie Formation, the source rock in Member 3 of the Shahejie Formation is considered as the main source of oil and gas.

Key words: origin of oil and gas, carbon isotope, biological marker, shallowmiddle level, Tangjiahe oil field

中图分类号:

P618.13

高玉巧,刘立,廖前进,孙晓明,腾云. 大港滩海区中浅层油岩地球化学特征及油气来源分析[J]. J4, 2006, 36(04): 535-542.

GAO Yuqiao1, LIU Li, LIAO Qian-jin, SUN Xiao-ming, TENG Yun. Geochemical Characteristics and Origin of Oil and Its Source Rocks in the ShallowMiddle Level:A Case Study of Tangjiahe Oil Field[J]. J4, 2006, 36(04): 535-542.

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