| 风积沙漠地区三维地震勘探资料处理中Q补偿应用实例 |
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| 引用本文： | 项守龙,鲍五堂,刘丕哲,邱兆泰.风积沙漠地区三维地震勘探资料处理中Q补偿应用实例[J].中国煤炭地质,2014(9):61-64. |
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| 作者姓名： | 项守龙 鲍五堂 刘丕哲 邱兆泰 |
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| 作者单位： | 河北省煤田地质局物测地质队,河北邢台054000 |
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| 摘 要： | 在有效波组为低频、低噪且地质任务以小构造解释为目标的地区,采用Q补偿技术有利于提高有效波组的主频,达到提高纵向分辨率的目的。以鄂尔多斯某勘探区为例,采用Q值补偿技术,以克服该区沙漠地貌明显的吸收衰减滤波效应问题,提高其地震资料的中、高频成分。通过对Q补偿参数进行测试,发现Q值为50时有效波响应明显。应用结果表明,经Q补偿后,地震时间剖面有效波主频明显提高,DF7、DF8断层在补偿后的地震时间剖面上较补偿前断点更清晰、位置解释误差更少。
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| 关 键 词： | 风积沙漠地区 低频 低噪 Q补偿 纵向分辨率 |
Application Examples of Q Compensation in 3D Seismic Prospecting Data Processing in Aeolian Desert Areas |
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| Xiang Shoulong,Bao Wutang,Liu Pizhe,Qiu Zhaotai.Application Examples of Q Compensation in 3D Seismic Prospecting Data Processing in Aeolian Desert Areas[J].Coal Geology of China,2014(9):61-64. |
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| Authors: | Xiang Shoulong Bao Wutang Liu Pizhe Qiu Zhaotai |
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| Institution: | (Geophysical Prospecting, Surveying and Geological Exploration Team, Hebei Bureau of Coal Geological Exploration, Xingtai Hebei 054000) |
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| Abstract: | In areas with low frequency, low noise effective wave groups and also geological target is to interpret minor structures, using the Q compensation can improve basic frequency of effective wave groups and thus increase longitudinal resolution. Taking a prospecting area in Ordos as an example, using Q compensation to overcome obvious problem of attenuation by absorption filtering effect in desert areas, have improved medium and high frequency components in seismic data. Through Q compensation parameter tests have found that effective waves have obvious response when the Q value is 50. The application has shown that after the Q compensation, effective wave basic frequency on seismic time section obviously increased, faults DF7 and DF8 have clearer displays on seismic time section,less errors in position interpretation than before the compensation. |
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| Keywords: | aeolian desert area low frequency low noise Q compensation longitudinal resolution |
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