| 大港南部滩海区沙三段原油地球化学特征及油源分析 |
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| 引用本文： | 吴兆徽,查明,刘晓慧,王建立,高长海.大港南部滩海区沙三段原油地球化学特征及油源分析[J].海洋地质与第四纪地质,2009(4). |
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| 作者姓名： | 吴兆徽 查明 刘晓慧 王建立 高长海 |
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| 作者单位： | 中国石油大学地球资源与信息学院;大港油田公司勘探开发研究院;中国海洋石油工程股份有限公司; |
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| 基金项目： | 中石油股份有限公司重点科技攻关项目(DGYT-2006-JS-4681) |
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| 摘 要： | 大港油田南部滩海区毗邻歧口和歧南两大生烃凹陷,具有双向供烃优势。沙三段是研究区最主要的产油层,但目前对该层段的油源对比结果尚存在争议。为明确油源,分别对原油的族组分、碳同位素、异戊二烯烃和甾萜类化合物等指标的地球化学特征进行分析对比,划分了原油类型。结果表明,南部滩海区沙三段原油可分为三类,第一类原油主要来自沙三段烃源岩,第二类原油主要来自沙一下段烃源岩,第三类原油地化特征介于两者之间,推测其为沙一下段与沙三段烃源岩的混合来源。三类原油在区域上也存在一定的分布规律。
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| 关 键 词： | 原油 烃源岩 生物标志化合物 油源对比 南部滩海区 |
GEOCHEMISTRY AND SOURCE ANALYSIS OF OIL FROM SHA3 FORMATION IN SOUTHERN BEACH SEA AREA,DAGANG OILFIELD |
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| WU Zhaohui,ZHA Ming,LIU Xiaohui,WANG Jianli,GAO Changhai.GEOCHEMISTRY AND SOURCE ANALYSIS OF OIL FROM SHA3 FORMATION IN SOUTHERN BEACH SEA AREA,DAGANG OILFIELD[J].Marine Geology & Quaternary Geology,2009(4). |
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| Authors: | WU Zhaohui ZHA Ming LIU Xiaohui WANG Jianli GAO Changhai |
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| Institution: | 1 College of Geo-resources and Information;China University of Petroleum;Dongying Shandong 257061;China;2 Exploration and Development Institute;Dagang Oilfield Company;Tianjin 300280;3 Offshore Oil Engineering Co.Ltd.;CNOOC;Tianjin 300452;China |
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| Abstract: | Southern beach sea area in Dagang Oilfield is adjacent to Qikou and Qinan hydrocarbon generation sags,and has the advantage of bidirectional source.Sha3 Formation is the major pay bed in the studied area,but the oil-source correlation in this formation is still disputed.In order to clarify the oil source,some indexes and geochemical characteristics are analyzed and correlated,such as group composition,carbon isotopes,i-paraffins,steroids and terpenoids,and oil is classified.The result shows that the oil in ... |
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| Keywords: | oil source rock carbon isotope biomarker oil-source correlation southern beach sea area |
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