Facing the problem that we always ask ourselves whether the technique and parmeters we use are suitable , we have to consider it in five main processing step , deconvolution , static correction , normal moveout , noise attenuation and migration 根據(jù)噪音在處理過程中的不同階段表現(xiàn)屬性不同,處理中采用不同的處理手段或不同的處理參數(shù)分階段對(duì)噪音進(jìn)行衰減。以便做到最大限度壓制噪音,而盡可能不損傷有效信號(hào),提高原始資料的信噪比。
In viewing of the characteristics of propagation of 3d converted wave , studies are performed on the processing methods of 3d converted waves , such as horizontal component rotation , calculation of 3d transition point , hyperbolic velocity analysis and nmo ( normal moveout ) correction of 3d converted wave , and non - hyperbolic velocity ratio analysis and nmo correction of 3d converted wave 基于三維轉(zhuǎn)換波傳播特點(diǎn),對(duì)三維轉(zhuǎn)換波資料處理方法進(jìn)行了研究,包括水平分量旋轉(zhuǎn),三維轉(zhuǎn)換點(diǎn)計(jì)算、三維轉(zhuǎn)換波雙曲速度分析與動(dòng)校正、三維轉(zhuǎn)換波非雙曲速度比分析與動(dòng)校正等。
In reflection seismology, Normal Move Out (NMO) describes the effect that the distance between a seismic source and a receiver (the offset) has on the arrival time of a reflection in the form of an increase of time with offset.Schlumberger Oilfield Glossary.