| 二十一世纪的地震勘探技术 |
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| 引用本文： | 何汉漪.二十一世纪的地震勘探技术[J].地学前缘,2000,7(3):267-273. |
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| 作者姓名： | 何汉漪 |
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| 作者单位： | 中国海洋石油总公司,研究中心,北京,100027 |
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| 摘 要： | 2 1世纪 ,地震勘探技术将进一步发展 ,三维地震的主流技术地位仍不可动摇 ,提高三维地震的分辨率是进一步提高三维地震解决地质问题能力的主要发展方向。三维叠前深度偏移技术将进一步发展并成为常规处理技术 ,全三维可视化解释将使三维地震信息得到更充分的利用。多波地震将全面应用于油气勘探。该项技术的应用 ,将使地震勘探技术从构造勘探真正推向岩性勘探 ,推向直接找油找气。时间延迟地震标志着开发地震已走向实用 ,其技术的发展有赖于三维地震技术发展
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| 关 键 词： | 高分辨率地震 叠前深度偏移 可视化 多波地震 时间延迟地震 |
THE SEISMIC TECHNOLOGY IN 21th CENTURY |
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| HE Han-yi.THE SEISMIC TECHNOLOGY IN 21th CENTURY[J].Earth Science Frontiers,2000,7(3):267-273. |
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| Authors: | HE Han-yi |
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| Abstract: | The seismic technology for petroleum exploration will be developing ulteriorly 21th century.Of course the 3 D seismic with still be dominated. The main further developments are as follows:(a) heighten the seismic resolution to improve exploration capacity; (b)pre stack depth migration; (c)3D visualization interpretation technology. The high resolution seismic data provide more information because of its wider bandwidth. Last decade, CNOOC has applied the bright spot and flat spot on the high resolution seismic profile to identify the gas bearing structure successfully, The Daqing Geophysical Corportion did the micro face analysis using the high resolution seismic data. The most important is that only high resolution seismic data can be reversed to impedance correctly. The pre stack depth migration is a matured technology, and it will be used more often. The development of interpretation technology of 3D data will form a new work flow and some new standards, for example, the fault interpretation standard using coherence cube. For the last few years, the acquisition technique of offshore multi component seismic has been developed. The multi component seismic will be a conventional technique for petroleum exploration. Its advantage has been proved by the tests in North Sea and South China Sea. CNOOC got very nice 4C data at the gas chimney in South China Sea,and the v p/ v s data show the gas bearing sands clearly. The seismic application is extended to petroleum production area from exploration by 4D or 4D4C technology. The problem is that how to use the 4D data in the heavy oil field? To find the seismic characters when the oil density of over 0.9 even 0.95 is the main task for CNOOC in next century because more than billion barrels of heavy oil were discovered in Bohai bay. |
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| Keywords: | high-resolution bright spot flat spot pre stack depth migration multi-component |
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