Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing a three-dimensional characteristic model of a porous material sample for analysis of permeability characteristics

A technology of porous materials and three-dimensional features, which is used in the research field of porous materials and media properties to achieve the effect of improving accuracy, accuracy and reliability

Inactive Publication Date: 2015-09-02
OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU INTROVISION RESERCH & DEV
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, core samples typically degrade—disintegrate or deteriorate—over time, presenting a significant shortcoming of traditional core analysis experimental studies

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing a three-dimensional characteristic model of a porous material sample for analysis of permeability characteristics
  • Method for producing a three-dimensional characteristic model of a porous material sample for analysis of permeability characteristics
  • Method for producing a three-dimensional characteristic model of a porous material sample for analysis of permeability characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In the description of the present invention, as an example, the claimed technique is applied to a cylindrical core sample. This clearly cannot be considered as limiting the possible application of the claimed method in any other design and form of porous media, including drill cuttings.

[0036] First, the core is raised to the surface through the spud process and transported to the laboratory, where it is typically sliced ​​into smaller-sized samples for microtomography studies.

[0037] Furthermore, the tomographic study of the sample is performed with sufficient resolution (necessary pixel size of the tomographic image). The result is a set of successive images of the core, each represented by pixels of a different gray scale (from pure white to pure black). Here white corresponds to the highest bulk density and black corresponds to the lowest bulk density.

[0038] The next step is to distinguish areas of uniform density in the material sample. This step can be c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a method for producing a three-dimensional characteristic model of a rock sample for analysis of the spatial and physical characteristics of materials subsequent to the processing of images obtained by means of computer tomography. The method includes producing a three-dimensional tomographic image of a sample of material, identifying areas where the structure of the material is homogeneous, assigning a particular material density value to each such area, assigning a particular porosity value to each pixel, assigning a particular absolute permeability value to each pixel, forming a three-dimensional characteristic model on the basis of the porosity and permeability values of each pixel, and calculating the absolute permeability of the entire sample or of a portion thereof in any direction by means of computational fluid dynamics. The technical result is an increase in the precision and reliability of data obtained regarding the permeability characteristics of a sample of porous material, without the need to employ additional financial and labor resources.

Description

field of invention [0001] The invention relates to the research field of porous materials and medium properties. More specifically, the present invention relates to a method for obtaining a characteristic three-dimensional model of a rock sample, which allows further study of its spatial physical properties based on the processing of computed tomography images. Background technique [0002] Oil and natural gas are stored at various depths in the porous rocks of the Earth's crust. One method used to study oil-producing formations is the examination of cores—cylindrical rock samples obtained during drilling. Rocks have multi-scale heterogeneous structures. Core analysis can solve many important problems in oilfield development: oil reserve evaluation, selection of recovery methods, economic evaluation of oilfield development, etc. [0003] Today, petroleum engineers are confronted with increasingly complex oil fields—carbonate formations, shale oil, etc., which require more...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00G01N23/04G01N15/08
CPCG01N2223/616G01N15/0826G06T17/05G01N2223/649G01N2015/0846G01N2223/419G01N23/046G01N15/088G16C99/00G06F17/10G01V20/00
Inventor E·A·格拉契夫V·G·库里克奥A·P·戈尔比克G·A·卡拉什尼科夫A·A·萨拉托夫A·V·希瓦茨伯格
Owner OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU INTROVISION RESERCH & DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com