CAJ | 학술논문

黄土塬地区地表高程变化剧烈、地表结构与表层岩性变化大、低速带厚度大且速度低，导致地震勘探资料的静校正问题突出，信噪比低，振幅与波形一致性差，是整个资料处理流程中的重点与难点。给出了能较好解决不同波长静校正问题的联合静校正技术，既能有效去除噪音又能使有效信号不被破坏的多步多域迭代去噪技术，实现振幅与子波特征一致性的处理技术。应用表明，这些技术能有效地改善地震剖面的质量。
황토원지구지표고정변화극렬、지표결구여표층암성변화대、저속대후도대차속도저，도치지진감탐자료적정교정문제돌출，신조비저，진폭여파형일치성차，시정개자료처리류정중적중점여난점。급출료능교호해결불동파장정교정문제적연합정교정기술，기능유효거제조음우능사유효신호불피파배적다보다역질대거조기술，실현진폭여자파특정일치성적처리기술。응용표명，저사기술능유효지개선지진부면적질량。
The rapid changes of surface elevation, shallow structure and lithology, and the huge thickness of the low-velocity zone result in difficulty in static correction of seismic data. In the seismic data processing flow, the difficulties are low signal-to-noise ratio and poor amplitude and waveform consistency. The paper gives a united static correction technology for better solution of the problem of different wavelength static corrections, the multi-domain and multi-step iterative de-noising technology which can effectively remove noise and make signal not destroyed, and the consistency processing technology which makes amplitude and wavelet features consistent. The result shows these techniques can effectively improve the quality of seismic profiles.