Time-lapse seismic baseline data acquisition shotpoint position error analysis method, device, medium and equipment
By scanning and matching shot lines and connecting lines, correcting shot point numbering errors, and calculating shot point errors, the problem of inaccurate shot point error calculation in time-shifted earthquakes was solved, improving the repeatability evaluation of seismic data and the accuracy of shot point location.
Patent Information
- Application Number
- CN202610454375.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are not accurate enough in calculating shot point errors in time-shifted earthquakes, especially in the case of supplementary or inclined shot lines. This leads to inaccurate evaluation of seismic data repeatability and insufficient estimation of the number of pre-drawn shot lines and connecting lines, affecting parameter selection.
By scanning the actual shot lines, the direction, number, and offset of the previously drawn shot lines and connecting lines are determined. The intersection points are calculated to determine the shot point locations. The repeatability of shot points is evaluated by combining the average error. The number of shot lines and connecting lines is determined by using the avg(d)-ofs curve characteristics. Shot point numbering errors are corrected, and shot points are matched to calculate the error.
It improves the accuracy of repeatability evaluation of seismic data, provides a basis for decision-making in marine time-shifted seismic acquisition, and is applicable to the evaluation of shot point positioning accuracy in conventional marine towed cable 3D seismic acquisition.
Smart Images
Figure CN122410618A_ABST