| 复杂山区高分辨率地震采集分析与应用——以四川盆地及周缘地区为例 |
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| 引用本文： | 王伟,高星,张小艳,查欣洁,张英慧,李桂林.复杂山区高分辨率地震采集分析与应用——以四川盆地及周缘地区为例[J].地球物理学报,2018,61(3):1109-1117. |
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| 作者姓名： | 王伟 高星 张小艳 查欣洁 张英慧 李桂林 |
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| 作者单位： | 1. 资源与环境信息系统国家重点实验室, 中国科学院地理科学与环境研究所, 北京 100101;2. 中国科学院大学, 北京 100049;3. 中国地质调查局油气资源调查中心, 北京 100085 |
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| 基金项目： | 国家自然科学基金（41574036，41374061，41421001，41641040）和科技部"重点陆相盆地深层含钾卤水富集规律与成矿预测"（2017YFC0602802）资助. |
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| 摘 要： | 震源药柱激发因素选择是影响地震资料品质的一个重要环节，在南方复杂山区高分辨率地震采集中合理选择激发岩性、井深、药量等激发因素尤为重要.本文根据复杂山区地震地质条件多样性、复杂性等特点，从理论上分析了地震激发机理、井深、药量、虚反射效应、岩性与药柱长度等对激发子波的影响，开展了基于适应近地表结构特征的动态井深设计、双微测井和综合表层结构调查（微测井和高密度电法联合）等，结合四川盆地及周缘等地区不同地震地质条件下进行了采集试验研究，获得了高品质单炮记录.
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| 关 键 词： | 药柱震源 激发岩性 地震采集 微测井 |
| 收稿时间： | 2017-12-11 |
High-resolution seismic acquisition analysis and applied in the complex mountainous regions: An example from Sichuan Basin and surrounding areas |
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| WANG Wei,GAO Xing,ZHANG XiaoYan,ZHA XinJie,ZHANG YingHui,LI GuiLin.High-resolution seismic acquisition analysis and applied in the complex mountainous regions: An example from Sichuan Basin and surrounding areas[J].Chinese Journal of Geophysics,2018,61(3):1109-1117. |
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| Authors: | WANG Wei GAO Xing ZHANG XiaoYan ZHA XinJie ZHANG YingHui LI GuiLin |
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| Institution: | 1. The State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Development and Research Center of China Geological Survey, Beijing 100085, China |
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| Abstract: | Excitation factors of columnar explosive source are an important factor affecting the quality of seismic data. The choice of reasonable excitation factors is especially significant in the complex mountainous region of southern China. Factors include the lithology, well depth and quantity of explosive used. Based on the geological characteristics in this region, theoretical analyses are described of factors that affect the excitation wavelet, in terms of the seismic excitation mechanism, well depth, mass and dimensions of the columnar explosive charge, the virtual reflection effect and lithology of the investigated region, combined with field experimental tests in different geological conditions in the Sichuan Basin and surrounding areas. The tests incorporated dynamic well-depth design and adaptations to near-surface structural characteristics, based on double micro-logging (joint micro-logging and high-density electromagnetics) and comprehensive surface investigation surveys. |
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| Keywords: | Columnar explosive source Excited lithology Seismic acquisition Micro-logging |
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