Seismic data amplitude compensation method and system capable of relatively maintaining amplitude
Through time-frequency analysis and filtering technology, the frequency bands of seismic data are subdivided, the amplitude compensation data curve is calculated and the amplitude compensation is performed, which solves the problem of inaccurate amplitude recovery in the existing technology, and the accurate compensation and stability improvement of the amplitude of seismic data is achieved.
CN119916444APending Publication Date: 2025-05-02PETROCHINA CO LTD
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Patent Information
- Application Number
- CN202311423095.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-30
- Publication Date
- 2025-05-02
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Figure CN119916444A_ABST
Abstract
The invention relates to a seismic data amplitude compensation method and system capable of keeping amplitude relatively. Belongs to the technical field of geophysical exploration, an amplitude compensation curve is solved through data of a specific frequency band of seismic data, then amplitude compensation processing is performed on original data, reasonability of a physical process is considered, slow change of data amplitude from shallow to deep is reflected, and a data foundation is laid for subsequent processing such as frequency compensation. Serious amplitude distortion of processing results such as arc drawing caused by follow-up frequency compensation, deep energy dramatic increase, migration imaging and overlarge deep amplitude is avoided, the requirement for the follow-up amplitude fidelity processing process is met, the result is good and stable, and the accuracy and stability of amplitude compensation are improved.
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