| 拓频技术在砂体预测中的应用 |
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| 引用本文： | 吴勇,聂凯轩,任金礼,秦建勋,李爱军,王建柱,李艳新.拓频技术在砂体预测中的应用[J].石油地球物理勘探,2011(Z1):80-83,163,170. |
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| 作者姓名： | 吴勇 聂凯轩 任金礼 秦建勋 李爱军 王建柱 李艳新 |
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| 作者单位： | 大港油田第二采油厂;北京中油吉亚科技发展有限公司;陕西省地质矿产勘查开发局物化探队; |
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| 摘 要： | 地震拓频技术就是在小时窗内通过频谱分解研究薄层变化,在频率域通过调谐振幅或相位研究储层横向变化规律,利用不同频率对不同尺度地质体存在不同的响应特征认识地质体,可识别厚度小于1/4地震波长的薄层。文中对歧北斜坡南中段缓坡带进行了多种地震参数的提取和分析,包括瞬时频率、瞬时相位、均方根振幅、相位余弦等。分析结果表明,地震拓频属性分析技术对该区的主力油砂体的变化较敏感,尤其对BS6—BS8井区沙河街组主力油层的厚度变化反映突出,与新钻探的B35、B38、B39、B27井的检验结果吻合程度较高,获得了较好的应用效果。
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| 关 键 词： | 薄层 岩性圈闭 地震属性参数 频率域 拓频技术 |
Frequency-extension in oil sand prediction |
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| Wu Yong,Nie Kai-xuan,Ren Jin-li,Qin Jian-xun,Li Ai-jun,Wang Jian-zhu , Li Yan-xin..Frequency-extension in oil sand prediction[J].Oil Geophysical Prospecting,2011(Z1):80-83,163,170. |
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| Authors: | Wu Yong Nie Kai-xuan Ren Jin-li Qin Jian-xun Li Ai-jun Wang Jian-zhu Li Yan-xin |
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| Affiliation: | Wu Yong1,Nie Kai-xuan2,Ren Jin-li3,Qin Jian-xun1,Li Ai-jun1,Wang Jian-zhu1 and Li Yan-xin1.1.The Second Oil Production Plant of Dagang Oilfield,Huanghua,Hebei,061103,China2.Beijing Zhongyoujiya Science and Technology Development Co.Ltd,Beijing.100101,China3.Geophysical and Geochemical Exploration Team of the Shaanxi Bureau of Geology and Mineral Resources,Xi'an,Shaanxi,710043,Chin |
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| Abstract: | The seismic frequency-extension technology studies thin-layer changes in small time window from spectrum analysis.Reservoir lateral changes in frequency domain are found by tuning amplitude or phase,and different scale geo-bodies are identified by response characteristics of different frequencies.This technology can help us identify thin layer with thickness less than 1/4 wavelength.We extract a few seismic attributes,including instantaneous frequency,instantaneous phase,root-mean-square amplitude,phase cos... |
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| Keywords: | thin-layer lithologic trap characteristics of seismic attribute frequency domain frequency-extension technology |
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