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公开(公告)号：US20220230326A1
公开(公告)日：2022-07-21
申请号：US17415621
申请日：2020-07-23
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Yanghui LI , Peng WU , Xiang SUN , Weiguo LIU , Jiafei ZHAO , Mingjun YANG , Lei YANG , Zheng LING
Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for cementing hydrate sediment based on a CT image. Indoor remolding rock cores or in situ site rock cores without hydrate can be scanned by CT; a sediment matrix image stack and a pore image stack are obtained by gray threshold segmentation; then, a series of cementing hydrate image stacks with different saturations are constructed through image morphological processing of the sediment matrix image stack such as dilation, erosion and image subtraction operation; and a series of digital rock core image stacks of the cementing hydrate sediment with different saturations are formed through image subtraction operation and splicing operation to provide a relatively real 3D model for the numerical simulation work of the basic physical properties of a reservoir of natural gas hydrate.
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公开(公告)号：US20210003517A1
公开(公告)日：2021-01-07
申请号：US16968818
申请日：2019-11-18
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Yanghui LI , Peng WU , Weiguo LIU , Jiafei ZHAO , Mingjun YANG , Yu LIU , Lei YANG
IPC: G01N23/046
Abstract: The present invention provides a CT triaxial test apparatus for hydrate-bearing sediment, and belongs to the technical field of fundamental physical property measurement of geotechnical engineering. In the apparatus, aiming at the defects of the invention “a visual test apparatus for mechanical characteristics of natural gas hydrate-bearing sediment”, the CT triaxial test apparatus for hydrate-bearing sediment is redesigned and optimized, on the premise of obtaining static and dynamic mechanical characteristics and creep characteristics of a hydrate reservoir, the stability of the triaxial apparatus during rotation due to scanning, the temperature control accuracy of a hydrate-bearing sample, and the X-ray penetration performance of the pressure chamber of the triaxial apparatus are improved, an optimal CT imaging effect is obtained, and powerful hardware support is provided to ascertain the reservoir deformation mechanism during hydrate decomposition.
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公开(公告)号：US20220156901A1
公开(公告)日：2022-05-19
申请号：US17416028
申请日：2020-07-23
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Yanghui LI , Peng WU , Xiang SUN , Weiguo LIU , Jiafei ZHAO , Mingjun YANG , Lei YANG , Zheng LING
IPC: G06T5/30 , G06T17/00 , G01N23/046 , G06T7/11 , G06T7/136
Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for pore-filling hydrate sediment based on a CT image. Indoor remolding rock cores or in situ site rock cores without hydrate can be scanned by CT; a sediment matrix image stack and a pore image stack are obtained by gray threshold segmentation; then, a series of pore-filling hydrate image stacks with different saturations are constructed through image morphological processing of the pore image stack such as erosion, dilation and image subtraction operation; and a series of digital rock core image stacks of the pore-filling hydrate sediment with different saturations are formed through image subtraction operation and splicing operation to provide a relatively real 3D model for the numerical simulation work of the basic physical properties of a reservoir of natural gas hydrate.
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公开(公告)号：US20250034995A1
公开(公告)日：2025-01-30
申请号：US18784963
申请日：2024-07-26
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Lei YANG , Mingjun YANG , Yu LIU , Lanlan JIANG , Dawei GUAN , Lunxiang ZHANG , Yi ZHANG , Yanghui LI , Zheng LING , Tao YU , Bingbing CHEN , Peng WU
Abstract: The present disclosure relates to the field of CO2 geological sequestration, and provides a whole-process multi-parameter monitoring device and method for simulating CO2 geological sequestration and use thereof. A large-scale reactor body is developed, and a geological reservoir at a depth of 800 to 3000 meters is simulated. A modular built-in model device is researched and developed, a multi-type and variable-structure reservoir remodeling technology is developed, and mutual coupling of modules can be achieved. The design idea of separating the pressure reactor from the built-in sample model is adopted in the device. The confining pressure, the pore pressure, the temperature gradient, and the axial load of the device can be independently controlled through a temperature control mechanism and a loading mechanism respectively, so that the restoration of the state of in-situ stresses in the reservoir is realized.
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