初至折射波静校正技术在复杂探区地震数据处理中的应用

山区及黄土塬地区近地表结构复杂，地形起伏大、低降速带横向变化剧烈，地震资料处理中的静校正难度加大。长波长静校正容易引起构造形态畸变，短波长静校正影响地震剖面信噪比。针对此类问题，从长波长静校正问题及短波长地表非一致性问题分析入手，提出部分炮检距叠加识别长波长静校正技术及分段统计逼近地表非一致性校正技术。该技术在复杂地表区与其它相关技术综合应用，可有效解决长、短波长静校正问题。

Appiication of Preliminary Refracted Wave Static Correction Technique in Complicated Area Seismic Data Processing

Because of near surface complicated structures undulating ground drastic transversal changes of weathering zone in mountainous area and loess tableland area make the difficulty of seismic data processing increased.Among the processing the long wavelength statics can easily cause distortion of structural forms while the short wavelength statics will affect signal-noise ratio of seismic sections.Aimed at this kind problems proceed with long wavelength statics and short wavelength surface nonconforming problem analyses put forward to use part of geophone offset stack to identify long wavelength statics problem technique and surface nonconforming segmented statistical approximation technique.Integrated application of them and other related techniques can more effectively solve the above mentioned problems in complicated surface areas.