【摘要】 本文在简要介绍利用90°相位数据进行地震解释的原理基础上,通过理论合成数据证明了其识别薄层的可行性,并阐明90°相移技术实现过程。在实际地震资料应用中,可利用Wiener-Levinson混相位提取法估算地震数据子波相位,并利用相位转换法将混相位的地震数据转换成零相位,再转换成90°常相位,据此提出了利用90°相位剖面解释岩性地层的思路。通过实际资料的应用,证实了90°相位剖面在岩性解释中识别薄层的优势。更多还原

【Abstract】 This paper briefly describes the principle of 90° phase data interpretation.Through the synthetic data we success to identify seismically thin beds in lithologic interpretation of 90° phase data,and describe the implementing procedure of 90° phase shift method.For real seismic data,we use the Wiener-Levinson mixed phase extraction method to estimate the seismic wavelet phase and use the phase shift method to convert the mixed phase to zero phase,and then convert to 90° phase.Finally we propose an idea to interpret thin beds by application of 90° phase data.Throughr the practical applications,we can confirm the advantage of 90° phase data in thin-bed interpretation.更多还原