Stratum space distribution feature determination method and device and electronic equipment

Through single-aircraft seismic data analysis, the location of virtual seismic source points and the formation characteristics are determined, the accuracy and cost of determining the spatial distribution characteristics of the stratigraphic in the existing technology are solved, and rapid and accurate exploration of the middle and deep strata are achieved.

CN119716986APending Publication Date: 2025-03-28SHENHUA MENGXI COAL CHEM CO LTD +2
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Patent Information

Application Number
CN202411883586.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing method for determining the spatial distribution characteristics of stratigraphics has problems such as low accuracy, long construction period and high cost, which is especially difficult to apply in the exploration of middle and deep strata.

Method used

By obtaining single-aircraft seismic data from the target exploration area, picking up the non-zero offset distance of the target strata, computing the location data of the virtual earthquake source point, determining the inclination angle, azimuth angle and imaging point position set of the target strata, and then obtaining the spatial distribution characteristics of the target strata.

Benefits of technology

It realizes rapid and accurate prediction of the spatial distribution characteristics of large-inclined formations, reduces construction cycle and cost, and is suitable for exploration of middle and deep strata.

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Abstract

The invention provides a formation space distribution characteristic determination method and device and electronic equipment, and relates to the technical field of seismic exploration, and the method comprises the steps: obtaining the single-shot seismic data, shot points and the position data of each detection point of a target exploration area, and picking the non-zero offset travel time of a target formation from the single-shot seismic data; calculating position data of a virtual seismic source point based on a seismic reflection law and non-zero offset travel time; determining an inclination angle, an azimuth angle and a stratum plane expression of the target stratum based on the position data of the virtual seismic source point and the shot point; determining an imaging point position set on the target stratum based on the position data of the virtual seismic source point, the position data of each detection point and the stratum plane expression, and further determining an imaging result of the target stratum; and taking the inclination angle, the azimuth angle and the imaging result of the target stratum as spatial distribution characteristics of the target stratum. The technical problems of low accuracy, long construction period and high cost of an existing stratum space distribution feature determination method are effectively relieved.
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