应用于塔东地区满加尔凹陷沙漠的地震资料静校正  

SEISMIC DATA STATIC CORRECTION APPLIED IN MANJIAER SAG DESERT IN EAST TARIM

作　　者：曹福仁 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2015年第2期140-143,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油科技创新基金项目(2011D-5006-0304)

摘　　要：塔里木盆地东部地表的沙丘起伏大,表层结构极为复杂,静校正量求取是确保地震资料成像质量的关键。因此,通过微测井资料建立了表层速度和结构模型,高精度的模型静校正方法解决了低频分量的静校正问题。组合应用折射波的静校正高频分量得到了满加尔凹陷二维地震资料静校正量,在提高地震资料的信噪比和分辨率的同时提高了地震成像精度。The surface of East Tarim Basin is characterized by the great fluctuation change of the sand dunes and extreme complexity of the surficial structures, the acquirement of the static correction is the key to ensuring the imaging quality of the seismic data. Therefore, by means of micro-logging data, the surface velocity and structural models are established; the static correcting method with the help of the high-precision model has resolved the static correction problem of the low-frequency components. At the same time, combined with the static corrected refraction-wave high-frequency components, the static correction volume of 2D seismic data in Manjiaer Sag has been got; the seismic imaging precision is enhanced while the signal-to-noise ratio and resolution is improved for the seismic data.

关 键 词：沙漠地表 静校正 微测井 低频分量 沙丘曲线 

分 类 号：P631[天文地球—地质矿产勘探]