影响地震速度反演处理与解释效果的因素探讨

Discussion on factors affecting the processing and interpretation results in seismic velocity inversion

华北石油局三普物探研究所,咸阳712000

Geophysical Prospecting Institute, The Third Reconnaissance and Exploration Brigade, North China Petroleum Bureau, Xianyang 712000

“三高”处理的优劣、频带宽度、速度低频成分的缺失都会影响地震速度反演的精度和可靠性。地震速度的多解性,也会造成反演资料解释的误区。本文讨论了这些影响因素的形成及影响的程度,提出了速度反演处理解释中应注意的问题。

The precision and reliability of seismic velocity inversion are affected by data processing, frequency bandwidth, and low frequency velocity compensation. Ambiguity of seismic velocity may also generate pitfalls in interpretation of inversion data. These influence factors are discussed here, and some problems which should be noted in seismic velocity inversion are presented.