地震相干体算法的改进及应用
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摘要
近年来,相干体技术在地震勘探资料解释方面的应用有着重要突破。由于相干体处理的对象主要是三维地震数据体,传统的方法计算需要运行较长时间。为缩短解释周期,在研究算法分析的基础上,采用递推算法、乘幂法等,对传统的相干体算法进行了改进,大大地提高了计算速度。这里介绍了相干体技术的改进算法,在微机上开发出相干体分析软件,并在实际的三维地震体储层评价上得到成功的应用。测试证明,运算速度较常规方法提高了5~7倍,这充分表明了该方法的有效性。
With the 3D coherence cube technique,the seismic exploration has nearly made a new break through in the seismic data interpretation.By calculating coherency between seismic traces,we can realize the conversion from 3D amplitude data to coherence attribute data.As the running time of the traditional methods is,however,always very long,such methods cannot satisfy the practical need. In order to shorten the periods of the seismic data interpretation,the authors have improved the algorithm of the traditional coherence cube based on the analysis of the algorithm and adopted a series of methods such as recursive method,power algorithm,to advance the speed.The pager introduces the improved algorithms,and develops the software of coherence cube technique and applies the technique successfully to the evaluation of petroleum reservoir.By testing,the speed of calculating is increased to 5-7times faster which verifies the validity of the algorithms.
With the 3D coherence cube technique,the seismic exploration has nearly made a new break through in the seismic data interpretation.By calculating coherency between seismic traces,we can realize the conversion from 3D amplitude data to coherence attribute data.As the running time of the traditional methods is,however,always very long,such methods cannot satisfy the practical need. In order to shorten the periods of the seismic data interpretation,the authors have improved the algorithm of the traditional coherence cube based on the analysis of the algorithm and adopted a series of methods such as recursive method,power algorithm,to advance the speed.The pager introduces the improved algorithms,and develops the software of coherence cube technique and applies the technique successfully to the evaluation of petroleum reservoir.By testing,the speed of calculating is increased to 5-7times faster which verifies the validity of the algorithms.
引文
[1]何建军.裂缝油气藏的信号检测技术[A].中国科协首届博士生学术交流大会论文集[C].北京:中国科学技术出版社2002.
[2]何建军,贺振华,黄德济.致密砂岩储层裂缝发育带的检测和识别[J].成都理工大学学报,2004,23(6):711.
[3]孙夕平,杜世通.乘幂法在地震属性分析中的应用[J].物探化探计算技术,2000,22(4):316.
[4]张军华,王永刚,赵勇,等.相干体技术算法改进及其在JTH地区的应用[J].物探与化探,2002,26(1):50.
[5]廖林,杨晓敏,朱之锦.相干技术在孤岛地区勘探中的应用[D].孤岛采油厂地质研究所.
[6]张军华,王月英,赵勇.C3相干体在断层和裂缝识别中的应用[J].地震学报,26(5):560.
[7]邓丽嫦,杨洪德.二维相干分析技术在裂缝性储集层描述中的应用—以川南白节滩构造、鱼塘潜高茅口组为例[J].物探化探计算技术,2003,25(2):169.
[2]何建军,贺振华,黄德济.致密砂岩储层裂缝发育带的检测和识别[J].成都理工大学学报,2004,23(6):711.
[3]孙夕平,杜世通.乘幂法在地震属性分析中的应用[J].物探化探计算技术,2000,22(4):316.
[4]张军华,王永刚,赵勇,等.相干体技术算法改进及其在JTH地区的应用[J].物探与化探,2002,26(1):50.
[5]廖林,杨晓敏,朱之锦.相干技术在孤岛地区勘探中的应用[D].孤岛采油厂地质研究所.
[6]张军华,王月英,赵勇.C3相干体在断层和裂缝识别中的应用[J].地震学报,26(5):560.
[7]邓丽嫦,杨洪德.二维相干分析技术在裂缝性储集层描述中的应用—以川南白节滩构造、鱼塘潜高茅口组为例[J].物探化探计算技术,2003,25(2):169.
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