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A Method for 3D Modeling of Petrophysical Structure

A technology of 3D modeling and physical properties, applied in the field of geological engineering, can solve the problems of 3D modeling accuracy and low efficiency

Active Publication Date: 2021-07-20
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method for three-dimensional modeling of petrophysical structures that can solve the problem of low accuracy and low efficiency of three-dimensional modeling of petrophysical structures in the prior art

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  • A Method for 3D Modeling of Petrophysical Structure
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  • A Method for 3D Modeling of Petrophysical Structure

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with accompanying drawing:

[0059] Such as figure 1 As shown in , it is a flow chart of the method for three-dimensional modeling of petrophysical structure of the present invention.

[0060] The method for three-dimensional modeling of petrophysical structure of the present invention comprises the following steps:

[0061] S1. Obtain geophysical logging data and borehole spatial information data, and establish a three-dimensional data field of underground petrophysical properties.

[0062] Specifically, the geophysical logging data is the petrophysical parameter data, and the spatial coordinate system is established for the petrophysical parameter data through the borehole spatial information data. Petrophysical parameter data include wave velocity, density, porosity, resistivity, etc.; drilling spatial information data include drilling coordinates, hole depth, inclinometer, etc.

[0063] The meth...

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Abstract

The invention discloses a method for three-dimensional modeling of petrophysical properties, which comprises taking geophysical logging data and borehole spatial information data to establish a three-dimensional data field of underground petrophysical properties; selecting a petrophysical parameter value or a combination of parameter values ​​to determine The value range of physical parameter values; the data in the three-dimensional data field is mapped to the state value of the grid node; the state values ​​of the adjacent eight grid nodes are combined into a hexahedron, and the corresponding body structure is selected according to the state value of the hexahedral grid node The index value of the type; calculate the intersection point of the isosurface of the petrophysical parameter value combination and the edge of the hexahedron; connect the edge intersection points according to the corresponding volume configuration, and create the contour surface of the petrophysical three-dimensional structure model. The invention can solve the problem of low accuracy and efficiency of three-dimensional modeling of petrophysical structure in the prior art, and has high accuracy, fast measurement speed and large range.

Description

technical field [0001] The invention relates to the field of geological engineering, in particular to a method for three-dimensional modeling of petrophysical structures. Background technique [0002] 3D modeling has always been a technical hotspot and difficult issue in the research of engineering, geology, and mining industries. When studying various complex geological structures underground, according to limited rock physical parameters, constructing a three-dimensional space attribute model of underground geological bodies is an important means of rock structure analysis. There have been many scholars and research literature on related technical issues. research and discussion. [0003] Among them, the three-dimensional modeling of petrophysical structure is mainly aimed at the underground petrophysical parameters obtained by various geological data, geophysical data, logging data and other methods, to establish a three-dimensional physical property space physical prope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 简兴祥
Owner CHENGDU UNIVERSITY OF TECHNOLOGY