浅析VE464-Custom扫描方式在VSP测井中的应用

Application of VE464 Custom sweep in seismic exploration

VE464系统是由Sercel公司基于428XL仪器一体化而设计、开发的可控震源数字控制系统,它提供了多种扫描方式,其中线性方式是最常用的。然而,随着地震勘探技术的发展,另一种扫描方式Custom逐渐被认可,将在以后的地震勘探和VSP测井中被广泛采用。本文主要针对Custom扫描方式的定义、扫描文件的组成结构、实现原理及应用案例进行浅析,为今后的地震勘探采集和VSP测井做技术储备。

VE464 system is a digital controlled vibroseis system which is based on integrative 428XL seismograph design by Sercel Company. This system can provide a variety of sweep modes and the most commonly used is linear mode. Moreover, with the development of seismic exploration technology, another Custom scan mode, which will be widely used in the seismic exploration and VSP logging in the future, has been recognized gradually. This paper describes the definition of the Custom sweep mode, the structure of scanned files, principle and application of case for analysis and estimates that this mode will be technology reserve for seismic exploration acquisition and VSP log- ging in the future.