地球物理数据的综合参数法
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摘要
分辨率及多解性问题是地球物理勘探中长期存在的难题。针对这些问题，文中提出地球物理数据的综合参数法等对策，为解决这些问题进行了有效的探索。部分方法已编程实现，并结合实际资料对方法的正确性进行了论证。结果表明，这些方法提高了信息的利用效率。综合参数法物理模型的设计思想是：滤波器输出端信号的能量与滤波器输出端噪音的能量之比趋于最大。数学模型采用一个简单而实用的无标准样本学习模式识别方法。对参数矩阵进行最大能量输出滤波，得到综合参数，运用门限值进行判定，进而可以标定储层异常。通过多元约束，使得分析结果具有较高的可信度。最后，运用白音查干凹陷资料进行了实际处理，具体分析说明本方法的运用及其特点。
Resolution and multi-solution are always the difficult problems of the geophysic exploration.Addressing these problems, this paper puts forward the countermeasure of CPM (comprehensive parameter method),which does a good explore for solving these problems. Some methods are accomplished by programming. The correctness of the method is verified by using practical data. The result indicates that this method improves the utility rate of information. The physical model of CPM is the design of a maximum energy-output filter. The basic thought is to make the ratio of the output energy of the filter between signal and noise tend to the maximum. Mathematic model is a simple and practical model recognition without standard sample studying. The steps are as follows: First, the parameter array is filtered by the maximum energy method, and then, the comprehensive parameter is aviliable, further more, the comprehensive parameter is judged by using the threshold, at last,the abnormal spot of reservoir can be marked. The analysis result is confined to a high reliability by using multi-restrainess. At last, the data of Baiyingchagan Depression is used to practical process to illustrate concretely the application and feature of this method.
Resolution and multi-solution are always the difficult problems of the geophysic exploration.Addressing these problems, this paper puts forward the countermeasure of CPM (comprehensive parameter method),which does a good explore for solving these problems. Some methods are accomplished by programming. The correctness of the method is verified by using practical data. The result indicates that this method improves the utility rate of information. The physical model of CPM is the design of a maximum energy-output filter. The basic thought is to make the ratio of the output energy of the filter between signal and noise tend to the maximum. Mathematic model is a simple and practical model recognition without standard sample studying. The steps are as follows: First, the parameter array is filtered by the maximum energy method, and then, the comprehensive parameter is aviliable, further more, the comprehensive parameter is judged by using the threshold, at last,the abnormal spot of reservoir can be marked. The analysis result is confined to a high reliability by using multi-restrainess. At last, the data of Baiyingchagan Depression is used to practical process to illustrate concretely the application and feature of this method.
引文
1, Hardage,B.A:Reservoir Geophysics,1995 185～188.
2,陆基孟:地震勘探原理,石油大学出版社(东营),1993。
3,中国人民大学数学组:概率论与数理统计,中国人民大学出版社(北京), 1985。
4,徐士良:C常用算法程序集,清华大学出版社(北京),1994。
2,陆基孟:地震勘探原理,石油大学出版社(东营),1993。
3,中国人民大学数学组:概率论与数理统计,中国人民大学出版社(北京), 1985。
4,徐士良:C常用算法程序集,清华大学出版社(北京),1994。
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