| 摘要: |
| 运用钻井、测井、地层水测试和油气地球化学等资料,对东营凹陷南斜坡古近系油气输导体系及流体动力学特 征进行研究,分析不同驱动机制下油气沿输导层优势侧向运移的控制因素。结果表明:浮力、水动力和异常流体压 力是研究区油气运移的3种主要驱动机制类型;在浮力驱动下，中、浅部输导层正向构造“脊”控制着油气优势运移 路径;在异常流体压力系统及其周缘,活动性断裂带诱发超压流体沿优势通道侧向运移、集中泄流泄压;在深部输导 层正常压实环境下,油气受水动力和浮力联合驱动发生运移,优势运移路径主要受正向构造“脊”的控制，但输导层 渗流能力非均质性也对其产生影响。 |
| 关键词: 输导层 驱动机制 侧向运移 控制因素 东营凹陷 |
| DOI： |
| 分类号: |
| 基金项目:山东宵博士后择优资助项目(200603027) |
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| Controlling factors for petroleum dominant lateral migration along Eogene carrier beds in southern slope of Dongying sag |
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WANG Jian-wei1,SONG Guo-qi2,SONG Shu-jun3,WANG Xin-zheng1,GAO Xia4
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(1. Xianhe Oil Production Plant，Shengli Oilfield Branch Company，SINOPEC，Dongying 257068, China;2. Shengli Oilfield Branch Company, S!NO PEC, Dongying 257000, Chirm;3. Hekou Oil Production Plant，Shengli Oilfield Branch Company，SIN OPEC, Dongying 257200, Chirm ;4. Geophysical Research Institute 9 Shengli Oilfield Branch Company，SINOPEC, Dongying 257022，China)
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| Abstract: |
| Many analytical data such as drilling, logging, formation water testing and petroleum geochemical property were used to analyze the carrier beds and fluid kinetics of Eogene in the southern slope, Dongying sag. Controlling factors of petroleum dominant migration along carrier beds were studied under different driving mechanism. The results show that there are three kinds of driving mechanisms including buoyancy，hydrodynamic force and fluid overpressure in the area. The buoyancy drives petroleum migration in the shallow,middle carrier beds, and positive structural elements control dominant migration pathways. In the overpressure zone, active faults induce overpressure fluid to dominantly migrate towards faults. In the deep carrier beds with low permeability and normal formation pressure, both hydrodynamic force and buoyancy interactively drive petroleum to migrate. Petroleum dominant migration pathways are mainly controlled by positive structural elements，but simultaneously affected by heterogeneous permeability of carrier beds. |
| Key words: carrier bed driving mechanism lateral migration controlling factor Dongying sag |
