摘要
地震波逆时偏移结果通常具有海量数据的特点,为此开展针对海量数据的共成像点道集提取工作。根据地震波逆时偏移结果的数据格式,开发了ckygather模块,实现了地震波逆时偏移分偏移距/分方位角共成像点道集和"蜗牛"共成像点道集的高效提取,并详细分析了该模块的程序设计思路及其质控过程,在某地区实际三维海量地震波逆时偏移处理区块中进行了应用。结果表明,由该模块提取的共成像点道集准确可靠,计算效率较高,可为开展后续的共成像点道集优化处理工作(如精细切除等)奠定重要的数据基础。
The seismic wave reverse-time migration data usually is very massive, therefore, the work is carried out to extract the corresponding common imaging point gather for the mass data. According to the data format of the seismic wave reverse-time migration result, the ckygather module is developed, by which the seismic wave re- verse-time migration azimuth/offset gather and ＂snail＂ common imaging point gather are effectively extracted, and the thinking of programming and the process of quality control for the module are analyzed in detail, it is applied to the 3D seismic wave reverse-time migration mass data acquired from an block. The result shows that the com- mon imaging point gathers extracted by the module that has high computational efficiency are accurate and reli- able, it is able to provide basic data for the sequent common imaging point gather optimization processing （such as fine cut and so on）.
出处
《油气地球物理》
2014年第1期4-8,共5页
Petroleum Geophysics
关键词
逆时偏移
海量数据
共成像点道集
模块开发
程序设计
reverse-time migration, mass data, common imaging point gather, module developing and programming
