| 河道砂岩体地震反射特征分析 |
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| 引用本文： | 李朝印,刘保华.河道砂岩体地震反射特征分析[J].中国海洋大学学报(自然科学版),1999(1). |
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| 作者姓名： | 李朝印 刘保华 |
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| 作者单位： | 青岛海洋大学(李朝印)，国家海洋局第一海洋研究所(刘保华) |
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| 基金项目： | 国家“126专题”课题 |
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| 摘 要： | 按河道形态，河流分为４类：（１）顺直河；（２）曲流河；（３）辫状河；（４）网状河。根据河道砂岩体主体的宽（ｗ）与（ｈ）高之比，河道砂岩体分为带状砂岩体（ｗ∶ｈ小于１５）和席状砂岩体（ｗ∶ｈ大于１５）。在参考前人资料的基础上，总结了在横切河道的地震剖面上河道砂岩体的反射形态、结构及振幅变化。重点介绍了曲流河内侧沙洲地震勘探，以及三维地震勘探技术在寻找河道砂岩体方面的应用。并强调指出，在河道砂岩体地震勘探中，应当加强地震资料与钻井资料、测井资料的结合。
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| 关 键 词： | 河道砂岩体 地震勘探 地震相 反射特征 三维地震勘探 |
Seismic Reflection Characteristics of River Sandstone Bodies |
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| Li Chaoyin.Seismic Reflection Characteristics of River Sandstone Bodies[J].Periodical of Ocean University of China,1999(1). |
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| Authors: | Li Chaoyin |
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| Abstract: | According to the shape of the channel, rivers can be classified into four groups: (1) straight rivers, (2) meandering rivers, (3) braided rivers, and (4) anastomosed rivers. And in the light of the ratio of the width to the height of the main body of the channel, we can classify river sandstone bodies into two groups: (1) striped sandstone bodies, and (2) matted sandstone bodies. Based on previous data, this paper sums up the reflection texture and the variety of amplitude of the river sandstone body in a dip seismic section. Seismic exploration for meander channel point bar deposits and 3 D seismic exploration for river sandstone bodies are mainly presented. It is emphasized in this paper that seismic data should be closely combined with drilling and logging data. |
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| Keywords: | river sandstone body seismic exploration seismic facies reflection characteristics 3 D seismic exploration |
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