论文详情
利用VSP资料研究地层吸收衰减规律
石油物探
1999年 38卷 第No. 4期
阅读：67
查看详情
Title
Using VSP data to study the law of stratigraphic absorption and attenuation
单位
华北石油局第三普查勘探大队物研所,咸阳 71200O
Organization
The Third Brigade of Reconnaissance and Exploration, North China Petroleum Bureau, xianyand 712000
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。
Abstract
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：
零偏VSP;
初至波;
衰减;
吸收;
振幅;
频率;
Keywords:
zero-offset VSP;
first arrival;
attenuation;
absorption;
amplitude;
frequency;
论文详情