公开(公告)号：US12188913B1

公开(公告)日：2025-01-07

申请号：US18806721

申请日：2024-08-16

Applicant: Ningbo Institute of Dalian University of Technology

Inventor： Huiyong Liang ,  Xin Lv ,  Shi Shen ,  Lei Yang ,  Xingyu Lu ,  Linan Zhao ,  Shuangqing Zhang

IPC: G01N33/00

Abstract: An in-situ observation device for gas hydrates includes a reactor, which includes a visual tube, a pulling rod, a temperature-controlled seed crystal rod and a spiral adjuster. An upper end and a lower end of the visual tube are respectively equipped with an upper end cap and a lower end cap. The upper end cap defines an air inlet, and the lower end cap defines a liquid inlet. An upper end of the temperature-controlled seed crystal rod is connected to an adjusting flange. The adjusting flange is connected to the spiral adjuster. A lower end of the temperature-controlled seed crystal rod hermetically passes through the upper end cap and is located in the visual tube. The temperature-controlled seed crystal rod defines a cooling liquid channel, and a cooling liquid inlet and a cooling liquid outlet, a seed crystal rod liquid inlet and a seed crystal rod outlet.

公开(公告)号：US11948284B2

公开(公告)日：2024-04-02

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: G06T7/136 ,  G01N23/046 ,  G06T5/30 ,  G06T7/11 ,  G06T17/00

CPC classification number: G06T5/30 ,  G01N23/046 ,  G06T7/11 ,  G06T7/136 ,  G06T17/00 ,  G06T2207/10081

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.