Title:
METHOD FOR PREDICTING COAL POROSITY AND PERMEABILITY PARAMETERS BASED ON FRACTAL THEORY AND CT SCANNING
Document Type and Number:
WIPO Patent Application WO/2020/215524
Kind Code:
A1
Abstract:
A method for predicting coal porosity and permeability parameters based on fractal theory and CT scanning, comprising: first, performing a CT scan experiment on coal samples to acquire two-dimensional CT slices of the coal samples; using three-dimensional reconstruction software to accurately perform three-dimensional reconstruction of the actual pore and fissure structure of the samples, respectively obtaining three-dimensional pore and fissure structure models of six coal samples, and calculating the microscopic parameters of the coal samples; then using the Matlab program to import the three-dimensional pore and fissure structure data, and calculating the three-dimensional volume fractal dimensions of each coal sample; finally, combining the pore and fissure structure parameters obtained by the CT three-dimensional reconstruction with a tortuosity fractal mathematical model to obtain tortuosity fractal dimensions of three-dimensional space, and obtain the fitting function of porosity and permeability to fractal dimensions, to thereby accurately predict porosity and permeability.
More Like This:
| WO/2019/170312 | COMPUTER TOMOGRAPHY SYSTEM AND COMPUTER TOMOGRAPHIC METHOD |
| JP2023119868 | BATTERY INSPECTION DEVICE FOR VEHICLE |
| WO/2021/242415 | DUAL ROBOT CONTROL SYSTEMS FOR NON-DESTRUCTIVE EVALUATION |
Inventors:
WANG GANG (CN)
CHENG WEIMIN (CN)
SHEN JUNNAN (CN)
LIU ZHEN (CN)
NI GUANHUA (CN)
LIU YIXIN (CN)
SUN LULU (CN)
LIU ZHIYUAN (CN)
QIN XIANGJIE (CN)
CHENG WEIMIN (CN)
SHEN JUNNAN (CN)
LIU ZHEN (CN)
NI GUANHUA (CN)
LIU YIXIN (CN)
SUN LULU (CN)
LIU ZHIYUAN (CN)
QIN XIANGJIE (CN)
Application Number:
PCT/CN2019/098777
Publication Date:
October 29, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
G01N23/046; G01N15/08
Foreign References:
| CN108763711A | 2018-11-06 | |||
| CN106979918A | 2017-07-25 | |||
| CN107817199A | 2018-03-20 | |||
| CN105510204A | 2016-04-20 | |||
| EP3358339A1 | 2018-08-08 |
Other References:
ZHANG, JIARUI ET AL.: "Three-dimensional Multi-fractal Characteristics of Reconstruction Soil Pore at Opencast Coal Mine Dump based on CT Scanning", CHINESE JOURNAL OF SOIL SCIENCE, vol. 48, no. 4, 31 August 2017 (2017-08-31), pages 786 - 793, ISSN: 0564-3945
YAN JI-WEI, YAO HUI-FANG, LI WEI, KANG ZHI-QIN, FENG ZENG-CHAO: "Pore Structure and Fractal Characteristics of Coals by MCT Technology", CHINA MINING MAGAZINE, vol. 24, no. 6, 30 June 2015 (2015-06-30), pages 151 - 156, ISSN: 1004-4051
YAN JI-WEI, YAO HUI-FANG, LI WEI, KANG ZHI-QIN, FENG ZENG-CHAO: "Pore Structure and Fractal Characteristics of Coals by MCT Technology", CHINA MINING MAGAZINE, vol. 24, no. 6, 30 June 2015 (2015-06-30), pages 151 - 156, ISSN: 1004-4051
Attorney, Agent or Firm:
QINGDAO ZHIDILINGCHUANG PATENT AGENCY CO., LTD (CN)
Download PDF: