An observation scheme optimization method based on uniformity index
By optimizing the seismic acquisition and observation scheme and calculating observation schemes with different point-to-line distance ratios, the problem of insufficient uniformity in coverage density optimization was solved, the signal-to-noise ratio and resolution of seismic data were improved, and the needs of oil and gas exploration and development were met.
CN120214902BActive Publication Date: 2026-06-23CHINA NAT PETROLEUM CORP +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NAT PETROLEUM CORP
- Filing Date
- 2023-12-25
- Publication Date
- 2026-06-23
Smart Images
Figure CN120214902B_ABST
Abstract
The present application relates to oil and gas seismic exploration data acquisition technical field, specifically to the observation scheme optimization method based on uniformity index. The method comprises the following steps: S10, collecting and arranging the observation parameters of the optimization scheme; S20, optimizing the design of the observation scheme parameters to obtain N optimization observation schemes; S30, calculating the noise removal response value corresponding to the N optimization observation schemes; S40, calculating the noise suppression response value corresponding to the N optimization observation schemes; S50, based on the noise removal response value and the noise suppression response value corresponding to the N optimization observation schemes, calculating the denoising response value corresponding to the N optimization observation schemes; S60, calculating the pre-stack time migration response value corresponding to the N optimization observation schemes; S70, based on the signal-to-noise ratio spectrum and the effective high frequency of the N optimization observation schemes, combining the index requirements of the target layer signal-to-noise ratio and the highest frequency, selecting the final scheme from the N optimization observation schemes.
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