| 摘要: |
| 介绍了检波器耦合的叠加效应和耦合谐振模型,为提高对耦合系统的描述精度‘，提出了检波器耦合系统的二 自由度模型。设计了一系列包括实验室测试及室外测试的试验，测试尾谁在不同长度、质量、材料、土壤等情况下检 波器的频率响应特性。测试结果验证了叠加效应模型，部分支持二自由度模型，试验结果没有验证耦合谐振模型。 新模型和试验结果有助于改善检波器耦合系统，进而提高地震勘探数据采集的精度。 |
| 关键词: 石油勘探 检波器 尾锥 耦合系统 数学模型 |
| DOI： |
| 分类号: |
| 基金项目:中国石油化工集团公司重点科研攻关项目(P02093) |
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| Effects of tail-cone on geophone coupling system during seismic exploration |
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LIU Zhi-tian1,2,WU Xue-bing1,2,WANG Wen-zheng2,NING Jing2
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(1. Research Institute of Petroleum Exploration and Development in China Petroleum Corporation，Beijing 100083，China ;2. Company of Geophysical Exploration and Development in Shengli Petroleum Management Bureau，Dongying 257100, Shandong Provinve, China)
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| Abstract: |
| The stacking effect model and coupling resonance nxxiel were presented. The two-freedom model which gives high description precision of coupling system was proposed. In order to exam the validation of the three models, a series of laboratory and field tests on the frequency response of the detector were performed by systematically changing the length, mass, component material of tail-cone as well as the ground condition. The analysis result didn't verify the coupling resonance model, but verified the stacking effect model. The two-freedom model was supported to some extent. The model and the experimental results can help to improve data acquiring precision during seismic exploration. |
| Key words: oil exploration geophone tail-cone coupling system mathematical model |
