永新地区空间采样密度与资料品质分析  

Spatial sampling density and data quality analysis in Yongxin area.

作　　者：张志林[1,2] 尚应军[1,3] 邸志欣[1] 田根海[1] 朱勇[1] 任宏沁[1] 

机构地区：[1]中国石化胜利油田分公司地球物理勘探开发公司,山东东营257086 [2]山东省东营市牛庄镇胜利油田地球物理勘探公司,257086 [3]中国石油大学地球资源与信息学院,山东东营257061

出　　处：《石油地球物理勘探》2008年第S2期55-58,73+177+7,共7页Oil Geophysical Prospecting

摘　　要：减小面元尺度,增加空间采样率,是提高分辨率的重要手段之一。本文以永新地区高精度地震采集为例,分析了当前地震采集密度指数的计算方式,在介绍该区采集资料品质的基础上,通过理论分析结合实际资料,分析面元大小、覆盖次数与资料品质之间的关系,对各种面元组合方式所得资料品质进行对比,认为该区高精度采集以10m×10m面元为宜,室内处理时浅、中、深层分别宜选用10m×10m、15m×15m及25m×25m面元。Reducing bin size and increasing spatial sampling rate are one of important means for improving resolution. Taking high-resolution acquisition in Yongxin area as an example, the paper analyzed the computational way of current seismic acquisition density index; on the basis of introducing the data quality acquired in the area, analyzed the relationship among bin size, folds and data quality in combination of theoretical analysis with practical data. It is considered by correlation of data quality acquired by different bin array pattern that it is appropriate to use 10m×10m bin size in an area of high-resolution acquisition and to select10m×10m, 15m×15m and 25m×25m bin size for indoor processing of shallow, mid and deep layer respectively.

关 键 词：空间采样密度 面元尺度 分辨率 信噪比 覆盖次数 观测系统 

分 类 号：P631.4[天文地球—地质矿产勘探]