Adjacent shot interference suppressing method and device for independent simultaneous sweeping seismic data of seismic vibrators

A technology for seismic data and interference suppression, which is applied in the field of geophysical exploration and can solve the problems of aliasing and low accuracy of seismic data.
CN104597499AActive Publication Date: 2015-05-06BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2015-05-06

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Abstract

The invention discloses an adjacent shot interference suppressing method and device for independent simultaneous sweeping seismic data of seismic vibrators. The adjacent shot interference suppressing method includes that separating non-common shot point gather seismic data from ISS seismic data of the seismic vibrators; carrying out vector median filtering on the separated non-common shot point gather seismic data to obtain non-common shot point gather seismic data performed with adjacent shot interference suppressing; separating common shot point gather seismic data from the non-common shot point gather seismic data performed with the adjacent shot interference suppressing. The adjacent shot interference suppressing method and device for the independent simultaneous sweeping seismic data of the seismic vibrators solve the technical problem of low seismic data precision of the prior art, realize to effectively eliminate the adjacent shot interference in the ISS seismic data and enable the seismic data precision to be improved.
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Description

technical field

[0001] The invention relates to the technical field of geophysical exploration, in particular to a method and device for suppressing adjacent shot interference of seismic data of independent simultaneous scanning (ISS) seismic data of a vibroseis. Background technique

[0002] During the acquisition process of ISS seismic data, multiple groups of vibroseis are operated independently and synchronously excited, and the seismic wavefields generated by synchronous excitation of multiple groups of vibroseis are recorded into a master record through continuous observation. acquired. This method of acquiring seismic data from a vibroseis ISS greatly reduces the amount of seismic data and improves the efficiency of acquiring seismic data.

[0003] However, during the acquisition of ISS seismic data with vibrators, the seismic wavefields generated by the synchronous excitation of vibrators will interfere and alias with each other, resulting in low accuracy of seismic...

Claims

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