一种提高三维成果资料分辨率的处理方法

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英文篇名：A Processing Method for Higher 3D Data Resolution 中文刊名：中国石油勘探 英文刊名：China Petrleum Exploration 作者：陈志卿 ; 尚新民 ; 石林光 英文作者：Chen Zhiqing ; Shang Xinmin ; Shi Linguang//Geophysical Research Institute of Shengli Petroleum Administration Bureau ; Dongying ; Shandong Prov. 257022 中文关键词：成果资料 ; 高分辨率 ; 地震子波 ; 匹配滤波 英文关键词：result data ; high-resolution ; seismic wavelets ; matched filtering 出版日期：2002-08-15 机构：胜利石油管理局物探研究院,胜利石油管理局物探研究院,胜利石油管理局物探研究院 山东省东营市 257022 ,山东省东营市 257022 ,山东省东营市 257022 年：2002 期：03 出版单位：中国石油勘探

摘要

车408、车22、田家等三维地震是胜利油田探区施工的3块高分辨率三维。与老资料及邻区常规资料相比,高分辨率资料在2.0s处主频在50Hz以上,大大高于常规资料的25—30Hz。根据Robinson褶积模型,忽略噪声项不计,在高分辨率资料与邻区常规地震资料的重合部,反射系数是一致的,地震记录的差异是由采集、处理中使用的地震子波的不同造成的。利用匹配滤波方法,从高分辨率成果资料上提取子波,对邻区常规资料进行滤波处理,可有效提高常规资料的频率,不失为一种快速、经济的解释性处理方法。
Che 408, Che 22 and Tianjia are three blocks with high-resolution 3D seismic data in the exploration zone of Shengli Oil Field. As compared with the old data and the conventional data in the neighboring zones, the fiequency of the high-resolution data exceeds 50Hz at 2.0s, much higher than 25～30Hz for the conventional data, Without taking the noise into account according to Robinson convolution model, the reflection factors are identical at the overlap zone between the high-resolution data and the conventional seismic data of the neighboring zone. The differentiae in the seismic records are caused by the seismic wavelets used in acquisition and processing. With application of matched filtering method, the wavelets are picked out from the high-resolution data to filtrate the conventional data of the neighboring zone to effectively boost the frequency of the conventional data. This is a fast and economic method for interpretation processing.

引文

[1] 陆基孟.地震勘探原理.东营:石油大学出版社,1993
    [2] 李庆忠.走向精确的勘探道路.北京:石油工业出版社,1993