利用VSP资料研究地层吸收衰减规律  

Using VSP data to study the law of stratigraphic absorption and attenuation

作　　者：李淑宁 刘荣 金东民 

机构地区：[1]华北石油局第三普查勘探大队物研所

出　　处：《石油物探》1999年第4期114-119,共6页Geophysical Prospecting For Petroleum

摘　　要：利用零偏VSP初至波在不同接收点频谱绝对值，展示了井所在地区地震波在地下的传播规律。根据各测点初至波频率、振幅的变化情况得出地层对地震波的吸收规律，并且利用初至波的分频曲线求得地层品质因数Q值。The laws of seismic wave propagation in the subsurface and seismic wave attenuation bystrata are studied by using the absolute value of frequency spectrum along with the vanations of frequencyand amplitude for zero-offset VSP first arrivals at different receiving point. Using the lrequency-divisioncurve of first arrivals, the quality factor of strata is also derived.

关 键 词：VSP 地层吸收衰减 地震波 油气勘探 地震勘探 

分 类 号：P631.443[天文地球—地质矿产勘探] P618.130.8[天文地球—地质学]