摘要
深水崎岖海底地震资料处理存在诸多难题,如延续相位问题、噪声与多次波压制问题、成像问题以及长偏移距表现的各向异性问题等等。通过某三维工区深水崎岖海底地震资料处理,探讨了深水崎岖海底低信噪比地震资料的特点及针对性处理策略,分析总结了多域去噪的保幅压噪、多次波衰减、确定性子波反褶积、高密度双谱自动速度分析、弯曲射线偏移等技术及其处理效果,为类似工区的地震资料处理提供了很好的借鉴。
Various problems may occur in the processing of seismic data from deep water bumpy sea bottom area,such as accompanying and secondary events,noises and multiples,imaging,and anisotropy resulted from long offset. This article discusses the characters of low S/N seismic data from deep water bumpy sea bottom area and the data processing strategy. Results from amplitude-preserving noise reduction,multiple attenuation,deconvolution with deterministic wavelet,automatic high-density bi-spectrum velocity analysis,and bending-ray migration were presented and analyzed.
出处
《勘探地球物理进展》
2010年第2期99-106,共8页
Progress in Exploration Geophysics
基金
国家重大科技专项子专题"莺琼盆地高温高压区高精度地震资料采集处理技术研究(编号:2008ZX050000230401)"资助
关键词
深水崎岖海底
信噪分离
多域去噪
远场子波
双谱速度分析
deep water bumpy sea bottom area
signal-noise separation
multi-domain noise suppression
far-field wavelet
bi-spectrum velocity analysis
