Title:
CT IMAGE-BASED THREE-DIMENSIONAL MODELING METHOD FOR PORE-FILLING TYPE HYDRATE DEPOSITS
Document Type and Number:
WIPO Patent Application WO/2022/000628
Kind Code:
A1
Abstract:
A CT image-based three-dimensional modeling method for pore-filling type hydrate deposits. An image stack is obtained by CT scanning an indoor remodeled rock core or on-site in-situ rock core without hydrate; the image stack is divided into a matrix skeleton image stack and a pore image stack by means of grayscale threshold adjustment; then by means of image morphological processing, such as corrosion, expansion and image subtraction operation of the pore image stack, a series of pore-filling type hydrate image stacks with different saturations are constructed; and then a series of pore-filling type hydrate deposit digital rock core image stacks with different saturations are formed by means of image subtraction and stitching operations, so as to provide a relatively real three-dimensional model for numerical simulation of basic physical properties of a natural gas hydrate reservoir.
Inventors:
SONG YONGCHEN (CN)
LI YANGHUI (CN)
WU PENG (CN)
SUN XIANG (CN)
LIU WEIGUO (CN)
ZHAO JIAFEI (CN)
YANG MINGJUN (CN)
YANG LEI (CN)
LING ZHENG (CN)
LI YANGHUI (CN)
WU PENG (CN)
SUN XIANG (CN)
LIU WEIGUO (CN)
ZHAO JIAFEI (CN)
YANG MINGJUN (CN)
YANG LEI (CN)
LING ZHENG (CN)
Application Number:
PCT/CN2020/103682
Publication Date:
January 06, 2022
Filing Date:
July 23, 2020
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
G06T17/00; G06T7/11
Domestic Patent References:
| WO2012118868A2 | 2012-09-07 |
Foreign References:
| CN103325137A | 2013-09-25 | |||
| CN110132818A | 2019-08-16 | |||
| CN109887083A | 2019-06-14 | |||
| CN107991212A | 2018-05-04 | |||
| CN105223315A | 2016-01-06 | |||
| CN107067379A | 2017-08-18 |
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