Mountainous region three-dimensional seismic exploration excitation point location optimization method and device

Abstract

The invention provides a mountainous region three-dimensional seismic exploration excitation point location optimization method and device. The method comprises the steps: obtaining coordinates and elevations of a theoretical excitation point position and coordinates, elevations and terrain slope position types of all sample points in a preset range with the theoretical excitation point location as the center; calculating the contribution rate of each sample point according to the coordinate and elevation of each sample point and the coordinate and elevation of the theoretical excitation point; and according to the terrain slope type and the contribution rate of each sample point, selecting a same point as an excitation point position after the theoretical excitation point position is optimized, considering the terrain slope type and reaching an expected target when the excitation point position is optimized, and taking all sample points in a preset range taking the theoretical excitation point position as a center as selection objects when the point is selected. The relation between the distance between the two point positions before and after point selection and the improvement amplitude is considered, and the problem that the attribute nonuniformity of an observation system is increased due to the fact that the point position offset is too large or unnecessary offset is solved.

Description

technical field [0001] The invention relates to the technical field of onshore petroleum seismic exploration, in particular to a method and device for optimizing excitation points of three-dimensional seismic exploration in mountainous areas. Background technique [0002] In the field data acquisition stage of 3D seismic exploration in mountainous areas, the location of the theoretically designed excitation point is usually optimized based on the needs of reducing construction difficulty and improving the quality of seismic data. [0003] At present, there are two main methods for optimizing the location of excitation points in mountainous 3D seismic exploration: [0004] (1) Manual point selection method: Near the theoretically designed excitation point, the location of the excitation point is selected according to subjective judgment after manual observation of the topography. The realization process is as follows: first, the technicians responsible for point selection ar...

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Problems solved by technology

[0006] In view of this, the present invention provides a method and device for optimizing excitation points in mountainous three-dimensional seismic exploration, electronic equipment, and a computer-readable storage medium. In mountainous seismic exploration with harsh construction environments and poor seismic data quality, comprehensive consideration is given to reducing construction time. Difficulty, improving data quality, reducing point offset, and improving construction efficiency, etc., select the location of the excitation point to meet the production needs, and solve the problem that the optimization points based on ground elevation and slope cannot fully reflect the excitation conditions and construction conditions The advantages and disadvantages of the selected points cannot achieve the expected goal, and the relationship between the distance between the two points before and after the point selection and the improvement range is not considered, which may easily cause excessive point offset or unnecessary offset, resulting in the observation system property problems such as increased inhomogeneity of the

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