反射点扫描叠加技术

本文介绍了一种与叠前部分偏移（PMBS）有些类似的方法--反射点扫描叠加（RSSTA）。这种方法能够实现真正的共反射点（CRP）叠加。而且,对于不符合反射或绕射规律的各种规则干扰波（面波、声波、折射波、次生干扰波等）具有相当强的压制能力。 文章从反射和绕射两个角度叙述了方法的原理。还给出了应用这种方法处理的二条实际地震剖面。

REFLECTION-POINT-SCAN-STACKING TECHNIQUES

Conventional stacking techniques are based on the concept of Common-Middle-Point (CMP) stack. While in the areas of bigger dip angle, various occurences and fault well developed the CMP stack can hardly get satisfactory results.This paper presents a method of Reflection-Point-Scan-Stacking (RSSTA) which is similar to that of Partial-Migration-Before-Stack (PMBS). This method can perform real Common-Reflection-Point(CRP) stack and has quite good capability to compress various regular noises (surface and acoustic wave, refractions, secondary interferences and so on) which are not concordant with the rule of reflection and diffraction.Principles of the method are described by both reflection and diffration. Some practical field profiles are presented in order to compare RSSTA with conventional stacking.