一种求取非卷绕相位的高阶“蓝色”反褶积方法  

A high-order "blue" deconvolution method using a non-winding phase

作　　者：张华[1] 李路路[2] 于强 陈爱萍[1] 

机构地区：[1]川庆钻探工程有限公司地球物理勘探公司技术发展中心,四川成都610213 [2]新疆油田分公司陆梁油田作业区,新疆克拉玛依834000 [3]新疆油田分公司工程技术公司,新疆克拉玛依834000

出　　处：《东北石油大学学报》2013年第6期42-46,62,共6页Journal of Northeast Petroleum University

基　　金：中国石油天然气集团公司"十二五"重大科研项目(2011B-3706)

摘　　要：在高分辨率地震资料处理过程中,为提取非卷绕的混合相位子波,使提高分辨率后的反射系数具有"蓝谱"特征,利用多路径平均求取高阶相位谱中非卷绕的相位主值,提取地震子波真实相位,通过重构地震子波进行确定性反褶积;利用测井资料和谱拟合得到与研究区沉积特点相符合的地层反射系数谱的分布特征,进行谱的交互式"蓝色"补偿,提高地震资料的分辨率和保真性.资料处理结果表明:该方法能估算非卷绕的混合相位子波,进行交互式"蓝谱"补偿,处理后剖面分辨率较高、保真性较好,能够有效提高地震记录分辨率.In the high-resolution seismic data processing,in order to extract a non-winding mixed-phase wavelet,and make the reflection coefficient after the resolution processing possess a 'blue spectrum'feature,we use a multi-path average method to obtain a non-winding phase from the high-order phase spectrum,and get a real seismic wavelet extraction phase,then deterministic deconvolution was achieved by reconstructing the seismic wavelet.Then through the logging data and spectral fitting,we can acquire distribution characteristics of formation reflectance spectrum whose sedimentary characteristics are consistent with the targeted area.Tthe above process being finished,further improvement on the resolution and fidelity of seismic data was realized.The actual data processing results show that the proposed method can accurately estimate the non-winding mixed phase wavelet,be interactive 'blue spectrum' compensation.After resolution processing,seismic data are of better fidelity,higher resolution,which proves to be an effective method for improving seismic record resolution.

关 键 词：地震记录 非卷绕相位 反褶积 交互式处理 测井资料 高阶谱 分辨率 

分 类 号：TE122.1[石油与天然气工程—油气勘探]