Method and device for conducting reservoir prediction and based on earth surface consistency deconvolution

Abstract

The invention provides a method and a device for conducting reservoir prediction and based on earth surface consistency deconvolution. The method includes collecting earthquake records formed by reflection earthquake signals from underground, generating a target function according to the earthquake records, conducting earth surface consistency deconvolution on the earthquake records to obtain shot point components and demodulator probe components, conducting minimum phase processing on the shot point components and the demodulator probe components to obtain minimum phase shot detection response, acquiring earthquake records free of non-geological factors according to the target function and the minimum phase shot detection response, mapping an earthquake section image according to the earthquake records free of the non-geological factors, comprehensively interpreting the earthquake section image to obtain a reservoir prediction result. The method and device removes effect of collection and earth surface factors on the earthquake records, improves real underground structure reflection capability of earthquake files and further improves reservoir prediction accuracy.

Description

technical field [0001] The present invention relates to the technical field of geophysical exploration, in particular to the processing technology of seismic data in oil and gas exploration, specifically a method and equipment for predicting reservoirs based on surface consistent deconvolution. Background technique [0002] Seismic exploration is an exploration method that uses artificial seismic technology to detect underground structures. It artificially excites seismic waves in a certain way, and the geophone receives reflection signals from the ground. Oil and gas reservoir prediction for subsurface structures. [0003] The main research content of seismic data interpretation is to analyze and predict the structural form of underground medium and reservoir physical properties according to the reflection characteristics of seismic data. In actual seismic exploration, the change of seismic reflection characteristics is not only affected by geological factors such as under...

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Problems solved by technology

However, because this method does not solve the two key problems of the objective function estimation of the actual seismic records and the minimum phasing affected by non-geological factors, the actual seismic records cannot be processed.

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