沙漠区静校正技术研究  

Study on static correction technology in desert area

作　　者：康智清 万应明 严晓霞 孟佩文 蔡存军 Kang Zhiqing;Wan Yingming;Yan Xiaoxia;Meng Peiwen;Cai Cunjun(Sinopec Petroleum Engineering Geophysics Co.,Ltd.,North China Branch,Zhengzhou 450018)

机构地区：[1]中石化石油工程地球物理有限公司华北分公司,河南郑州450018

出　　处：《石化技术》2020年第3期61-62,共2页Petrochemical Industry Technology

摘　　要：沙漠地区内通常遍布绵延起伏的沙丘,且海拔高差较大。表层沙丘的极不稳定导致静校正问题非常棘手,如何解决本地区的静校正问题成为了整个资料处理过程中的一大难点。本方法在利用微测井模型的基础上,研究采用沙丘静校正和折射静校正结合的方法来解决长波长静校正问题,同时采用多次迭代有效波剩余静校正来解决短波长静校正问题。通过这种综合静校正技术的应用,从而有效地解决本地区的静校正问题,提高了叠加成像的质量和信噪比,为后期的资料解释提供可靠的地震成果资料。The desert area is usually covered with rolling sand dunes,and the altitude difference is large.The instability of surface sand dunes leads to a very difficult problem of static correction.How to solve the problem of static correction in this area has become a major difficulty in the whole data processing process.Based on the microlog model,this method combines sand dune static correction and refraction static correction to solve the long wave static correction problem,and uses multiple iterations of effective wave residual static correction to solve the short wave static correction problem.Through the application of this comprehensive static correction technology,the problem of static correction in this area can be effectively solved,It improves the quality and SNR of stack imaging,and provides reliable seismic data for later data interpretation.

关 键 词：沙丘静校正 折射静校正 微测井 剩余静校正 近地表模型 

分 类 号：P631.4[天文地球—地质矿产勘探]