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OVT域叠前偏移衰减多次波 被引量:33

Multiple attenuation by prestack migration in the OVT domain
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摘要 本文在研究炮检距向量片(OVT)技术过程中,发现OVT域叠前偏移具有衰减多次波的能力,并利用高精度地震资料道距小、采样点密的特点,抽取了炮检距向量片,通过实例对比分析对OVT域叠前偏移衰减多次波的原因进行了探讨。用排除法初步论证了OVT道集具有比共炮检距道集更大的炮检距范围,这是OVT偏移衰减多次波能力的关键因素。 Through research on the OVT,we have found that prestack migration in the OVT domain can suppress multiples. Using high density seismic data(small trace interval),we extract offset vector tiles and analyze reasons of multiple attenuation by prestack migration in the OVT domain.We conclude that the main roles of multiple attenuation by prestack migration in the OVT domain is that the OVT gathers have larger offset range than common offset gathers.
出处 《石油地球物理勘探》 EI CSCD 北大核心 2013年第A01期36-41,202+5-6,共6页 Oil Geophysical Prospecting
基金 中国石油股份重大专项"塔里木油田勘探开发关键技术研究"(2010E2108)资助
关键词 多次波 炮检距向量片 叠前偏移 multiples,offset vector tile,prestack migration
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