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折射波地震勘探共出射点多次叠加和数据处理方法,是在海上工作实践中提出的一种新方法,并在室内进行了理论模拟试验。在折射波叠加数据处理和时深转换中,速度是一个重要参数。文章中论述了利用折射波共出射点多次叠加资料计算界面速度、地层厚度和折射界面上覆地层速度的原理和方法,设计了计算程序框图。最后,介绍了在折射波叠加技术中制作共出射点深度剖面的基本原理和方法。
Refractive Wave Seismic exploration multiple points and data processing methods are a new method proposed in the practice of offshore work, and the theoretical simulation experiments indoors. In refracted wave data processing and time-depth conversion, speed is an important parameter. In this paper, the principles and methods of calculating interface velocities, formation thicknesses and overburden velocities at refracting interfaces are discussed based on the data of refracted waves co-exiting a plurality of times, and the calculation block diagram is designed. Finally, the basic principle and method of making the common exit point depth profile in the refracted wave superposition technique are introduced.