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普通的地震资料处理方法应用于24次迭加的气枪资料。该资料是在波弗特海的利物浦海湾及麦肯齐海湾地区获得的。这些资料提供了区域地质及构造形态的一般概念。根据地质情况及资料质量,选了其中部分测线通过速度分析箱(Velocityanalysis package)重新处理,其目的是为了确定速度,特别是层速度,以作为地质剖面与地震剖面之间的共同界面。速度箱对共反射点集合中所有反射波进行了时间、时差及振幅的连续分析,根据时间、时差、振幅及极性的相似性,将同相轴从一个深度点到另一个深度点连接成一个反射段。这种反射段以它们的速度为标准,根据统计分析,划分为两类,即一次波与非一次波。在具有一次波速度特性的这些反射段之间,可以计算出层速度。由资料导出的速度的空间变化,被用来为时差作校正。因此,对两条测线资料的可解释性有了明显的改善。由资料导出的层速度给出了能与岸上声波测井进行对比的岩性图示。在没有任何海上钻探的帮助下,得出了对海上地质的合理解释。
Ordinary seismic data processing methods applied to 24 times the air gun data superimposed. This information was obtained in Liverpool Bay and Mackenzie Bay in Beaufort. These data provide general concepts of regional geology and tectonics. According to the geological conditions and data quality, some of the surveyed lines were selected for reprocessing through the Velocityanalysis package. The purpose was to determine the velocity, especially the layer velocity, as the common interface between the geological section and the seismic section. The velocity box continuously analyzes the time, the time difference and the amplitude of all the reflected waves in the set of reflection points. According to the similarities of time, time difference, amplitude and polarity, the events are connected from one depth point to another. Reflective section. The reflection sections are based on their velocities. According to statistical analysis, they are divided into two categories, that is, primary waves and non-primary waves. The layer velocities can be calculated between these reflection sections with the primary wave velocity properties. The spatial variation of the velocity derived from the data is used to correct for the time difference. Therefore, the interpretation of the two survey data has been significantly improved. The velocity of the layers derived from the data gives a lithographic representation that can be compared with shore sonic logs. With the help of no offshore drilling, a reasonable interpretation of the marine geology came to light.