Drawing method for isoline containing reverse fault

Abstract

The invention provides a drawing method for an isoline containing a reverse fault, which comprises the following steps: dividing the inner and peripheral data of the polygon of a fault; carrying out triangulation to data by a space gridding algorithm to obtain a final triangulation network; and tracking the isoline for the final triangulation network. A structural map drawn with the method has the advantages of good effect and high precision, the footwall information of the reverse fault can be drawn, and the drawing problem of the structural mp containing the reverse fault can be effectivelysolved.

Description

technical field [0001] The invention relates to the fields of seismic data acquisition, processing and interpretation, and more specifically, relates to a method for drawing contour lines with reverse faults. Background technique [0002] Contour diagram is a kind of graphics widely used in engineering and technical fields such as petroleum exploration and development, mining, geology, geophysics, geochemistry and meteorology. The so-called contour map is the process of interpolating a large number of discrete geometric or physical values ​​with certain regularity on a two-dimensional plane and converting points with the same value into graphics. [0003] Contour map is the most important and most commonly used map. Many scholars at home and abroad have done a lot of research on it, but the contour map obtained by various software is usually unsatisfactory. On the one hand, this is due to the limited and uneven distribution of known information; on the other hand, there are...

AI Technical Summary

Problems solved by technology

[0003] Contour map is the most important and commonly used map. Many scholars at home and abroad have done a lot of research on it, but the contour map obtained by various software is usually unsatisfactory

On the one hand, this is due to the limited and uneven distribution of known information; on the other hand, there are often many faults, especially reverse faults, in the study area, making the structure very complicated.

This makes it very difficult for the computer to automatically draw contour maps

At present, the contour drawing software used in my country's petroleum geophysical exploration is mostly imported from abroad, but when the faults in the research area are complex, especially when reverse faults exist, it is often impossible to draw a contour map that satisfies geologists , this is because the traditional contour drawing can only draw contours without reverse faults, that is, the contours do not overlap in space; if you want to draw overlapping contours, you have to draw the hanging wall first, and then Draw the lower part of the wall, and then manually overlap

This is very inconvenient for engineering to draw contour maps

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