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Geologic body variable attribute interpolation method and system

An interpolation method, a technology of geological bodies, applied in image data processing, instrumentation, design optimization/simulation, etc., can solve problems such as non-conformity, and achieve the effects of rapid attribute modeling, strong practicability, and high modeling efficiency

Active Publication Date: 2020-04-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the attribute modeling software used are based on layers, but only a constant can be used to fill between layers, which is completely inconsistent with the real complex geological structure in the field.

Method used

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  • Geologic body variable attribute interpolation method and system
  • Geologic body variable attribute interpolation method and system
  • Geologic body variable attribute interpolation method and system

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Embodiment

[0108] figure 1 A flow chart of a geological volume variable attribute interpolation method according to an embodiment of the present invention is shown.

[0109] Such as figure 1 As shown, the interpolation method of geological volume change attributes includes:

[0110] Step 1: Load the geological body result data that has been explained within the set work area;

[0111] Step 2: Construct the surface grid model of the geological body according to the control point data of the geological body;

[0112] Among them, the geometric modeling method is used to construct the surface mesh model of complex geological bodies. The geometric modeling methods include: two-dimensional limited Delaunay subsection, surface intersection, surface stitching and complex geological body fast tracking method;

[0113] Step 3: Taking the triangular mesh data of the geometric surface of the block as the limiting condition, regularize the limiting condition, obtain regular limiting points, limiti...

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Abstract

The invention discloses a geologic body variable attribute interpolation method and system. The geologic body variable attribute interpolation method comprises the steps of loading interpreted geologic body result data in a set work area range; constructing a surface grid model of the geologic body according to the control point data of the geologic body; taking the block geometric surface triangular mesh data as a limiting condition, carrying out regularization processing on the limiting condition to obtain regular limiting points, limiting line segments and limiting surfaces, and obtaining aregularized surface mesh model; subdividing the regularized surface mesh model by adopting a three-dimensional limited DELANAY subdivision algorithm to obtain a tetrahedral mesh with topological consistency; and performing attribute interpolation on the tetrahedral mesh by using a gradient-based variable attribute interpolation algorithm to obtain an interpolation result. According to the geologic body variable attribute interpolation method and system, variable attribute interpolation calculation of a complex geologic body is achieved, modeling efficiency is high, practicability is high, thepurpose of quick attribute modeling is achieved, and the geologic body variable attribute interpolation method and system are suitable for parallel calculation of a big data body attribute model.

Description

technical field [0001] The invention belongs to the field of seismic forward modeling attribute modeling, and in particular relates to a geological volume change attribute interpolation method and system. Background technique [0002] Seismic forward modeling technology is widely used in the acquisition, processing and interpretation of seismic exploration, and plays an important role in the design optimization of observation systems, extraction of processing parameters and verification of interpretation schemes. However, the results of seismic forward modeling depend on many aspects such as wavelet selection, observation system definition, attribute modeling and numerical solution of forward modeling. The establishment of a reliable attribute model (including P-wave velocity, S-wave velocity, density, saturation, porosity, etc.) is a crucial and inevitable link in seismic forward modeling and numerical analysis. At present, most of the attribute modeling software used are ...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06T19/00
CPCG06T19/00
Inventor 孟祥宾
Owner CHINA PETROLEUM & CHEM CORP
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