关键词: 井间地震资料, 深-时转换模型, 宽频带标定, 波阻抗反演, 储层精细描述

Abstract: The conventional inversion for time domain is unfavorable to cross-hole seismic data in depth domain. An appropriate velocity model for depth-time conversion was constructed. The data can be converted from depth domain to time domain. The inversion result obtained in the time domain can be converted back to depth domain for reservoir interpretation. The constraint model for wave impedance of cross-hole seismic data was developed. The depth-time conversion of wave impedance profile in the time domain was made, and the wave impedance profile of cross-hole seismic data in the depth domain was obtained. The converted wave impedance profile and the seismic data in depth domain can be directly used to analyze reservoir property.

Key words: cross-hole seismic data, depth and time conversion mode, wide frequency band synthetic calibration, impedance inversion, accurate reservoir description