Three-dimensional space target geologic body tracking method based on visualization

Abstract

The invention provides a three-dimensional space target geologic body tracking method based on visualization and belongs to the field of three-dimensional earthquake reservoir prediction and evaluation. The method comprises the steps that a time window is used for cutting a target layer, and a set of position face slices of the target layer are obtained; optimization is conducted on earthquake attributes of the position face slices, and the earthquake attributes representing the form of the target geologic body are taken as optimization attributes; the existing range of the geologic body on the plane is sketched based on the optimization attributes, and then a data similarity principle is used for tracking the target geologic body to obtain a polygon area of the geologic body; a geologic body model is established after interpretation of all the position face slices is completed, and finally three-dimensional visualization display is conducted on the established geologic body model. By means of the three-dimensional space target geologic body tracking method based on visualization, detailed description can be conducted on the target geologic body based on three-dimensional earthquake data, and the space occurrence of the target geologic body is displayed through three-dimensional visualization and used for guiding earthquake data interpretation and well drilling track design.

Description

technical field [0001] The invention belongs to the field of three-dimensional seismic reservoir prediction and evaluation, and specifically relates to a visualization-based three-dimensional space target geological body tracking method, which tracks (describing) the spatial distribution of the target geological body through three-dimensional visualization, and provides important information for drilling trajectory design. reference materials. Background technique [0002] Visualization technology is a comprehensive technology that integrates computer data processing, image display and many other cutting-edge technologies. With the help of advanced display technology of graphics workstation, it is possible to carry out all-round perspective on seismic data volume, which is not only a means of quality monitoring, but also can It is used to display and describe many underground geological features, whether it is complex structures or changes in stratum sedimentary reservoirs, ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and to provide a visualization-based three-dimensional space target geological body tracking method, aiming at the low precision of describing the target geological body in the three-dimensional visualization of conventional seismic data, and it is difficult to describe the thickness of sand bodies Small, fast lateral changes, low porosity, and low permeability reservoirs are limited in application, improve the description accuracy of the target geological body, make full use of the data display function of 3D visualization of seismic data, and reveal the spatial endowment of the target geological body The storage status provides important reference materials and data for the interpretation of seismic data and the design of later drilling trajectories.

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