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在地表地质条件复杂的地区,低降速带横向变化大,厚度分布不均匀,横向岩性速度变化剧烈,存在严重的短波长静校正和长波长静校正问题,仅作高程静校正和剩余静校正不能较好地解决成像问题。在简要讨论层析静校正原理和特点的基础上,通过分析研究,较好地解决了长波长静校正的问题。通过实际资料的应用,剖面的品质得到了较大的改善,取得了较好的地质效果。
In areas with complicated geological conditions, the low-speed deceleration zone has large lateral variations and uneven thickness distribution, and the lateral lithology changes rapidly. There are serious short-wavelength static correction and long-wavelength static correction problems, which are only used for elevation correction and residual static The correction can not solve the imaging problem well. On the basis of a brief discussion of the principles and characteristics of stablization of static tomography, the problem of long wavelength stablization is well solved through analysis and research. Through the application of actual data, the profile quality has been greatly improved, and achieved good geological results.