| 合肥盆地二维地震采集方法 |
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| 引用本文： | 冯刚 张光德 胡立新 郑泽继. 合肥盆地二维地震采集方法[J]. 石油地球物理勘探, 2003, 38(4): 369-374 |
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| 作者姓名： | 冯刚 张光德 胡立新 郑泽继 |
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| 作者单位： | 胜利石油管理局物探公司(冯刚，张光德，胡立新)，胜利石油管理局物探公司(郑泽继) |
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| 摘 要： | 合肥盆地集山地、丘陵、平原、沼泽、水网等复杂地表干一体；低降速带变化频繁，地层倾角变化大，地层界面反射能量弱，噪声干扰严重，资料信噪比低。在合肥盆地的地震采集施工中，针对地表情况，设计了高覆盖次数、大炮检距、小道间距的观测系统；利用卫星照片，结合地质露头调查资料，合理选择接收、激发条件，并及时调整观测系统，采用高爆速炸药激发技术，所得资料较老资料品质有明显改进，效果非常理想。
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| 关 键 词： | 合肥盆地 二维地震勘探 数据采集方法 卫星照片 信噪比 |
2-D seismic data acquisition in Hefei basin. |
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| Feng Gang,Geophysical Prospecting Company,Shengli Oil Administration,Dongying City,Shandong Province,,China Zhang Guangde.Hu Lixin and Zheng Zeji.. 2-D seismic data acquisition in Hefei basin.[J]. Oil Geophysical Prospecting, 2003, 38(4): 369-374 |
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| Authors: | Feng Gang Geophysical Prospecting Company Shengli Oil Administration Dongying City Shandong Province China Zhang Guangde.Hu Lixin Zheng Zeji. |
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| Affiliation: | Feng Gang,Geophysical Prospecting Company,Shengli Oil Administration,Dongying City,Shandong Province,257100,China Zhang Guangde.Hu Lixin and Zheng Zeji. |
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| Abstract: | The Hefei basin puts all kinds of complex topography together such as mountains,hills,plains, mashes and network of rivers etc. ; Lower Velocity Layer (LVL) has rapid changes both in thickness and velocity;bed-dips are variable;weak reflection from interface and strong noise interference made data poor signal-to-noise ratio. We adopted the following measures in seismic field operation in Hefei basin in view of the surface condition; designing of geometry with high folds, long offset and small group interval; using satellite photo and in combination with geologic outcrop investigation data for reasonable selection of shooting and receiving conditions and adjustment of geometry in times adopting the charge with high-explosive-speed to shot etc. The resulted data has obvious improvement in comparison with legacy data and ideal effects. |
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| Keywords: | Hefei basin seismic acquisition satellite photo data quality |
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