| 一种提高地震层速度计算精度的方法——用于GeoMountain解释工程师系统 |
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| 引用本文： | 巫骏,蒲平文,邹文,黄东山,黄诚. 一种提高地震层速度计算精度的方法——用于GeoMountain解释工程师系统[J]. 天然气工业, 2009, 29(7): 19-22. DOI: 10.3787/j.issn.1000-0976.2009.07.006 |
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| 作者姓名： | 巫骏 蒲平文 邹文 黄东山 黄诚 |
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| 作者单位： | 川庆钻探工程公司地球物理勘探公司技术发展中心 |
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| 摘 要： | 为提高利用速度谱资料获取地震层速度的准确性，以GeoMountain解释工程师软件系统作为平台，提出了一种新的层速度计算方法，包括区域经验值约束的广义DIX计算层速度、基于广义DIX公式的已知层速度的速度谱反推算法、层速度的沿层计算和方位平滑等新算法。经实际项目验证，用该方法计算的层速度用于时深转换成图，在平面上的变化具有更好的规律性，更加符合实际地质情况。
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| 关 键 词： | GeoMountain软件系统 地震数据 层速度 计算 精度 四川盆地 东 |
A method derived from the GeoMountain Seismic Interpreter System: To improve the accuracy of calculating seismic interval velocity |
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| WU Jun,PU Ping-wen,ZOU Wen,HUANG Dong-shan,HUANG Cheng. A method derived from the GeoMountain Seismic Interpreter System: To improve the accuracy of calculating seismic interval velocity[J]. Natural Gas Industry, 2009, 29(7): 19-22. DOI: 10.3787/j.issn.1000-0976.2009.07.006 |
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| Authors: | WU Jun PU Ping-wen ZOU Wen HUANG Dong-shan HUANG Cheng |
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| Affiliation: | Technology Development Center, Geophysical Prospecting Branch, CNPC Chuanqing Drilling Engineering Co., Ltd., Chengdu 610213, China) |
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| Abstract: | In order to get accurate calculation result of seismic interval velocity by use of velocity spectrum, this paper, taking the GeoMountain Seismic Interpreter System as a platform, puts forward a new calculation method of interval velocity including general DIX interval velocity calculation method restricted by regional empirical value, backstepping calculation method through the known interval velocity spectrum based on general DIX formula, horizon based calculation method of interval velocity and azimuth smoothening etc. Examined by the actual structural map of Mopan Laowan working area in East Sichuan basin, the interval velocity calculated by this method showed a better rule in lateral variation and coincided better with the actual geological conditions. |
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