On the interpretation method research and application of crosswell seismic data
井间地震资料精细解释方法研究与应用

The fine interpretation methods for crosswell seismic data have been researched that are learned from the surface seismic technology to make full use of the high resolution abilitity. The characteristics have been analyzed in the depth domain, the spectrum analysis has been done in the time domain with the time-depth transform. The crosswell seismic data have been reset with a low pass filter and a spacing of surface seismic group interval and the similarity with the surface seismic data have been set up. According to the synthetic seismograms calibration, the crosswell seismic reflection characteristics can be confirmed, then the seismic interface can be interpreted in combination with the similarity. The seismic instantaneous attribute and time-frequency attribute have been used to analyze the sedimentary environment, and the impedance inversion have been adapted to get the distribution of sand-mud interbeded. With these methods and logging data contrast, the sand distribution between wells has been determined, the problem of connectivity and thickness variation between wells can be resolved and the better effect is obtained in application.