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《长春地质学院学报》 1990-03
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PHYSICAL INTERPRETATION OF SEISMIC WAVE'S ATTENUATION WITH NEAR PARABOLA'S MODEL IN SEISMIC SURVEY FREQUENCY'S RANGE

Yang Baojun Zhang Bojun Yang Youfa Yu Dijun(Changchun University of Earth Science) (Daqin9 OH Field)  
Attenuation of seismic wave's propagating through the earth is studied in both theory and practice for tens years. This paper summarized the previous works which contains both attenuation mechanisms and measurements,and pointed out two defects of the works.First,the relation between propagating distance and frequence is studied seldom. Second, it's not sufficient to interprete physically about the field measurements. We have studied the relations between the distance and the frequency by VSP technique.The writers advanced a method of reflection attenuation compensation, used polynomial fitting technigue.and got an attenuation modern of near parabolic kind after computations.Then the results of the measur-ments and computations.were discussed using both front pressure and inherent frequency of vibration,and some interesting results were got.
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