高青要平方王潜山带原油地化特征及油源分析-断块油气田.PDF

断 块 油 气 田 19 卷 3 期 FAULT BLOCK OIL 驭 GAS FIELD 2012 年5 月 文章编号 1005 8907 渊20员2 冤03 0289 05 高青要平方王潜山带原油地化特征及油源分析 王志杰 渊中国 化胜利油田分公司纯梁采油厂袁山东 博 256504冤 摘 要 高青要平方王潜山带是东营凹陷盆缘潜山中勘探潜力最大的区带袁研究区内油藏类型尧油气来源比较复杂遥 文中 运用原油地球化学特征的分析结果袁对油气成因类型及油源进行了系统判识遥研究表明袁该区主要存在3 类原油院 玉型原油 具有低Pr/Ph 尧高酌 蜡烷特点袁与沙四上亚段烃源岩特征相近曰域型原油具有高Pr/Ph 尧低酌 蜡烷特点袁表明原油与沙三下亚 段烃源岩特征一致曰芋型原油表现出2 种原油的混源特征遥 通过精细的油源对比袁对研究区油气来源进一步划分袁分析认 为院平方王尧平南和小营油田油气主要来自于沙三下亚段烃源岩曰高青油田油气来源比较复杂袁其中第三系油气主要来自沙 三下亚段烃源岩袁中生界油气主要来自沙四段烃源岩袁局部具有混源的特征遥 关键词 油源对比曰生物标志化合物曰原油类型曰地化特征曰高青要平方王潜山带 + 中图分类号 TE 122.1 4 文献标志码 A Geochemical characteristics of crude oil and oil source analysis of Gaoqing Pingfangwang buried hill belt Wang Zhijie (Chunliang Oil Production Plant, Shengli Oilfield Company, SINOPEC, Boxing 256504, China) Abstract: Gaoqing Pingfangwang buried hill belt is the most favorable buried hill belt in Dongying Depression. The reservoir type and the oil source are very complex in the study area. Based on the geochemical characteristics analyses of crude oil, the origins of the oils found in the study area are classified into three classes. Class 玉oil is characterized by low ratio of Pr/Ph and high content of gammacerane, which shows that the oil may come from the upper section of the 4th member of Shahejie Formation. Class 域oil has a high ratio of Pr/Ph and low content of gammacerane, which shows that the oil may come from the lower section of the 3rd member of Shahejie Formation. Class 芋 oil has the mixed characteristics of Class 玉and Class 域. It is found