沙漠区表层Q值求取及补偿方法研究  

Research on calculating and compensation methods of Q value in desert area surface

作　　者：宋智强[1] 刘斌[1] 陈吴金[1] 张丽娜[1] 崔岗[1] 

机构地区：[1]中国石化地球物理公司胜利分公司,山东东营257100

出　　处：《油气藏评价与开发》2013年第4期8-11,共4页Petroleum Reservoir Evaluation and Development

摘　　要：西部沙漠区含油气丰富,是目前重要的勘探区块。沙漠区主要的采集问题是资料分辨率的问题,是沙漠区采集的瓶颈,而提高分辨率的关键是表层的吸收衰减问题。因此,研究沙漠区表层吸收衰减的补偿问题对于提高资料成像质量具有重要意义。根据沙漠区微测井资料的特点,选用频谱比法获得准确的沙漠表层Q值,有效补偿了由表层严重吸收衰减所带来的分辨率的降低。The western desert area rich in oil and gas is an important exploration block at present. The main collection problem of desert area is resolution, and the key problem of how to improve the resolution is the surface absorption decay. So that, to study the surface absorption decay compensation problems in desert areas has great significance for improving the data imaging quality. According to the characteristics of micro logging data in desert area, selection of frequency spectrum ratio method to obtain accurate desert surface Q value effectively compensate for the decreased resolution caused by serious absorption decay.

关 键 词：Q值 沙漠区 吸收衰减 分辨率 补偿 频率 

分 类 号：P631.4[天文地球—地质矿产勘探]