Microseismic data noise suppression method and system, storage medium and seismic information processing equipment

Abstract

The invention discloses a microseismic data noise suppression method and system, a storage medium and seismic information processing equipment, belongs to a microseismic data processing technology, and aims to solve the problems that all noise cannot be eliminated and effective signals are lost in an existing method. According to the technical key points, a detector is used for collecting microseismic data of a target block; dividing the obtained microseismic data into a training set, a verification set and a test set in proportion, inputting the training set data into the time attention mechanism mutual information generative adversarial network model for learning, and outputting a microseismic noise suppression pre-training model; inputting verification set data into the trained model, and verifying model parameters by using a signal-to-noise ratio to obtain an optimal micro-seismic noise suppression model hyper-parameter combination; testing the optimal hyper-parameter combination by using test set data, and obtaining a final micro-seismic noise suppression model; and inputting the field micro-seismic data into the final micro-seismic noise suppression model to obtain de-noised micro-seismic data, thereby realizing noise suppression of the micro-seismic data.

Description

technical field [0001] The invention relates to a noise suppression method and system for microseismic data, a storage medium and seismic information processing equipment, and belongs to the technical field of data processing of microseismic data. Background technique [0002] In recent years, my country's conventional oil and gas exploration potential has gradually decreased, but the demand for oil and gas brought about by the rapid development of the country's industry has continued to increase. By 2020, my country's foreign oil dependence has reached 73.5%. The proven reserves of unconventional oil and gas in my country are about 107.5 billion tons, and the development potential is huge. The development of unconventional oil and gas exploration and development is the only way to ensure my country's energy security. Microseismic monitoring technology is a key technology for evaluating the effect of hydraulic fracturing and obtaining parameters such as the orientation, leng...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems mentioned in the background technology: the traditional denoising method is usually based on subjective expert experience guidance when distinguishing effective signals and noises, that is, it is determined that the noise signal only exists in the high-frequency part of the overall signal, then use Low-pass filtering eliminates high-frequency noise

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