| 稳态充注下输导层交汇处油气运移路径的选择性 |
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| 引用本文： | 马中良, 曾溅辉, 郑伦举. 稳态充注下输导层交汇处油气运移路径的选择性[J]. 石油实验地质, 2012, 34(1): 89-93. doi: 10.11781/sysydz201201089 |
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| 作者姓名： | 马中良 曾溅辉 郑伦举 |
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| 作者单位： | 1.中国石油化工集团公司油气成藏重点实验室, 江苏, 无锡, 214151;;2. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏, 无锡, 214151;;3. 中国石油大学油气资源与探测国家重点实验室, 北京, 102249 |
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| 摘 要： | 输导层的孔、渗特性和产状对于油气的运移、聚集具有重要的影响。以东部断陷盆地输导格架为例,开展了稳态充注条件下输导层物性和倾角变化对输导层交汇处油气运移路径影响的二维模拟实验。结果表明:油气运移至两输导层的交汇处时优势通道的选择取决于各砂层物性和倾角的综合作用,输导层物性和倾角对油气优势通道形成具有互补性,倾角大、物性好的输导层更容易成为油气优先选择的运移通道。通过实验和理论计算得出了输导层交汇处油气运移通道发生变化的不同倾角比条件下的临界物性比,物性比等于该临界值时,两输导层均可成为运移通道,小于或大于该临界值,只有一条优势运移通道。在此基础上,建立了输导层交汇处油气运移路径的判别模版,为预测不同输导格架下油气优势运移方向提供了实验参考。
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| 关 键 词： | 油气运移 优势通道 实验模拟 成藏机理 |
| 收稿时间： | 2011-01-24 |
| 修稿时间： | 2011-11-24 |
Hydrocarbon migration pathway in carrier layer junction based on steady filling |
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| Ma Zhongliang, Zeng Jianhui, Zheng Lunju. Hydrocarbon migration pathway in carrier layer junction based on steady filling[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(1): 89-93. doi: 10.11781/sysydz201201089 |
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| Authors: | Ma Zhongliang Zeng Jianhui Zheng Lunju |
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| Affiliation: | 1. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214151, China;;2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China;;3. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China |
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| Abstract: | The porosity,permeability and attitude of carrier layer have important influences on hydrocarbon migration and accumulation.Case studies have been conducted in the transporting frames of the eastern rift basins.Based on steady filling,the physical property and attitude of carrier layer have been changed so as to analyze their influence on hydrocarbon migration pathway in carrier layer junction.When hydrocarbon migrates to the junction of two carrier layers,the predominant pathway depends on both the physical property and the attitude of each sand layer.The carrier layer with bigger angle and better physical property is much easier to become favorable pathway for hydrocarbon migration.The physical property limit for predominant pathway change in carrier layer junction has been calculated at different angle through theoretic study and experiment.If physical property equals to the critical value,both the two transport layers can work as favorable migration pathway.If physical property is bigger or smaller than the critical value,only one transport layer can be favorable migration pathway.A quantitative model has been established so as to predict favorable pathway in carrier layer junction. |
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| Keywords: | hydrocarbon migration dominant migration pathway experimental simulation accumulation mechanism |
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