地震资料高分辨率处理技术应用

Seismic data high resolution processing technique and its application.

为了适应储层预测技术的发展需求,有必要在高分辨率三维地震采集的基础上,做好高分辨率处理,主要技术包括:高精度静校正、高保真去噪、保幅处理、子波一致性、高精度速度分析和成像等技术。实践表明,运用高分辨率处理技术,可以显著提高地震资料的保真度、信噪比和分辨率,基本满足精细储层预测的要求。

With the oil-field exploration maturity increasing, seismic data interpretation requires better imaged data from processing and higher field quality data from acquisition. The routine seismic data processing techniques can hardly meet the needs of high resolution seismic data processing and interpretation, as a result seismic data have to be processed with new high resolution processing workflow. Regarding the characteristics of the local seismic data and the oilfield E&P requirements, high precision static correction, high-fidelity de-noising, amplitude-preserved processing, wavelet consistency and high precision velocity analysis and imaging and other techniques were suggested in this paper. Those new techniques were used in the seismic data processing for the old data, as a result the fidelity, signal to noise ratio and the resolution for the old processed data were greatly improved, the satisfied results were achieved.