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Title:
CT IMAGE-BASED THREE-DIMENSIONAL MODELING METHOD FOR CEMENTED HYDRATE SEDIMENT
Document Type and Number:
WIPO Patent Application WO/2022/000627
Kind Code:
A1
Abstract:
A CT image-based three-dimensional modeling method for a cemented hydrate sediment. An indoor remodeled core or field in-situ core that does not contain a hydrate is subjected to CT scanning, the core is divided into a matrix skeleton image stack and a pore image stack via a gray threshold, a series of image stacks of cemented hydrates having different saturations are constructed by performing image morphology processing such as dilation, erosion, and an image subtraction operation on the matrix skeleton image stack, and then, a series of digital core image stacks of cemented hydrate sediments having different saturations are formed by means of an image subtraction operation and a stitching operation, thereby providing a relatively real three-dimensional model for numerical simulation work of basic physical properties of a 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)
Application Number:
PCT/CN2020/103667
Publication Date:
January 06, 2022
Filing Date:
July 23, 2020
Export Citation:
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Assignee:
UNIV DALIAN TECH (CN)
International Classes:
G01V5/00; G01N23/046; G06T7/55
Foreign References:
CN108763711A2018-11-06
CN103325137A2013-09-25
CN105487121A2016-04-13
CN102222359A2011-10-19
CN106324002A2017-01-11
CN109697752A2019-04-30
CN107449707A2017-12-08
CN109448104A2019-03-08
CN108303360A2018-07-20
JP2011242231A2011-12-01
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