Three-dimensional observation system reconstruction method and system

Abstract

The invention provides a three-dimensional observation system reconstruction method and system. The method comprises the following steps of determining the size of a work area and work area azimuth angle information according to work area range parameters, converting the azimuth angle of the work area into a right angle through a coordinate rotation formula and the work area azimuth angle information to obtain a right-angle work area, acquiring right-angle work area shot point information through shot point parameter information and work area range information of the right-angle work area, and converting the shot point information of the right-angle work area into actual shot point information through a coordinate anti-rotation formula, and carrying out seismic data analysis according to the actual shot point information.The brand new observation system information within the given parameter range can be quickly obtained, therefore, data preparation in the links of data regularization, multi-dimensional data interpolation and seismic trace data recovery in the seismic data processing process is flexibly met.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a reconstruction method and system for a three-dimensional observation system. Background technique [0002] The seismic observation system is to endow the actual spatial relationship with the seismic data generated during field acquisition. Specifically, it includes two steps: the first is to directly use the SPS files collected in the field (coordinate information of shot detection points and the receiving relationship of different detection points corresponding to each shot) to calculate various attribute libraries, and then match these attribute libraries with seismic data, The matching mainly uses the field file number and the channel number to uniquely match, so that the seismic data has a real spatial relationship. [0003] However, with the intensification of exploration efforts, the exploration work area is carried out in areas with complex surfaces such a...

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Problems solved by technology

[0003] However, with the intensification of exploration efforts, the exploration work area is carried out in areas with complex surfaces such as mountainous areas and Gobi.

However, the observation points arranged in this way may be quite different from the theoretically designed positions.

And this kind of position deviation makes the data processing process more difficult and reduces the imaging quality of the data

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