Method and device for suppressing external interference waves

Abstract

An embodiment of the invention discloses a method and a device for suppressing external interference waves. The method includes identifying interference sources in research areas and acquiring external interference wave data generated by the identified interference sources; analyzing difference between the external interference wave data and preliminarily acquired effective wave data and judging whether the external interference waves need to be suppressed or not; suppressing the external interference waves when judgment results indicate that the external interference waves need to be suppressed. The device comprises an identifying and acquiring unit, an analyzing and judging unit and a suppressing unit. The method and the device in the embodiment of the invention have the advantage the seismic exploration cost can be reduced by the aid of the method for suppressing the external interference waves.

Description

technical field [0001] The present application relates to the technical field of seismic exploration, in particular to a method and device for suppressing external interference waves. Background technique [0002] External interference waves are an inevitable type of external interference waves in seismic exploration. It is also called ambient noise and refers to disturbances caused by various external factors that exist in the recording without seismic excitation. [0003] External interference waves have long been the enemy of seismic exploration. The existence of external interference waves will not only reduce the signal-to-noise ratio of seismic data, but also affect the quality of seismic data processing. [0004] Before the implementation of high-density seismic exploration technology, in order to reduce the impact of external interference waves on seismic exploration data, all external interference waves are directly suppressed without any analysis of external inte...

AI Technical Summary

Problems solved by technology

However, in today's high-paced and rapid development, it is becoming more and more difficult to implement limited-time operation or shutdown of industrial equipment such as factories, mines, oilfield facilities, etc. The traffic flow on the road is also increasing, and the long-term shutdown of operating equipment will increase the input cost. , will also reduce work efficiency

In addition, with the application of high-density seismic exploration technology, the workload of field seismic exploration data acquisition has increased several times or even dozens of times, which requires more exploration equipment and personnel to collect field seismic exploration data.

If the method of suppressing external interference waves in the prior art is used to directly shut down these exploration equipment that may not need to be shut down during the exploration period, this may reduce the efficiency of data collection and may also increase input costs

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