公开(公告)号：US12085100B2

公开(公告)日：2024-09-10

申请号：US18012665

申请日：2022-08-22

Applicant: SICHUAN UNIVERSITY

Inventor： Ru Zhang ,  Zetian Zhang ,  Zhilong Zhang ,  Li Ren ,  Chendi Lou ,  Kun Xiao ,  Anlin Zhang ,  Qijun Hao ,  Lanbin Zhang

IPC: F15B15/14 ,  F15B15/22

CPC classification number: F15B15/1428 ,  F15B15/1447 ,  F15B15/226 ,  F15B15/1414 ,  F15B15/1466

Abstract: A bottom cylinder for a high-temperature and high-pressure environment simulator of a high-fidelity corer is provided. The bottom cylinder includes a cylinder barrel. The bottom of the cylinder barrel is provided with a cylinder base. The piston is provided inside the cylinder barrel and divides an inner cavity of the cylinder barrel into a rodless cavity and a rod cavity. The piston is provided with a piston rod. The outer wall of the cylinder barrel is provided with an oil inlet hole communicated with the rodless cavity, an oil outlet hole communicated with the rod cavity, and a reserved hole. The lower end surface of the piston is provided with a first buffer ring, and the upper surface of the cylinder base is provided with a second buffer ring mated with the first buffer ring. The bottom cylinder is applied to the simulator for oil and gas resource exploitation.

公开(公告)号：US12252942B2

公开(公告)日：2025-03-18

申请号：US18035762

申请日：2022-09-23

Applicant: SICHUAN UNIVERSITY

Inventor： Zetian Zhang ,  Heping Xie ,  Ru Zhang ,  Ling Chen ,  Yihang Li ,  Heng Gao ,  Jianan Li ,  Wei Huang ,  Li Ren ,  Kun Xiao ,  Weiqiang Ling ,  Chendi Lou

IPC: E21B19/24

Abstract: A rolling and sliding adaptive device for guiding and fixing a drill pipe includes a mounting platform, where the mounting platform is provided with a through hole for the drill pipe to pass through. Multiple rolling and sliding support mechanisms are arranged around the through hole. The rolling and sliding support mechanisms each include a support seat. The support seat is provided with a contact element telescopic and swingable on the support seat. A telescopic drive mechanism is provided between the contact element and the support seat. The contact elements on the multiple rolling and sliding support mechanisms form a funnel-shaped structure with a large upper part and a small lower part around the through hole. The rolling and sliding adaptive device is used on a deep in-situ high-fidelity coring calibration platform for accurate positioning of an assembly process of a multi-section drill pipe bin.

公开(公告)号：US12131104B2

公开(公告)日：2024-10-29

申请号：US18442107

申请日：2024-02-15

Applicant: Sichuan University ,  Zhengzhou University

Inventor： Zhengmeng Hou ,  Yanli Fang ,  Jianhua Liu ,  Liangchao Huang ,  Jianwei Tang ,  Li Ren

IPC: G06F30/23 ,  E21B41/00 ,  G06F111/10

CPC classification number: G06F30/23 ,  E21B41/0057 ,  E21B2200/20 ,  G06F2111/10

Abstract: The disclosure relates to the field of underground salt cavern energy storage, and discloses a coupling numerical simulation method for site selection of an underground salt cavern hydrogen storage, which specifically comprises the following. Geological data of an area where the salt cavern hydrogen storage is to be established is obtained. A three-dimensional model is established and grid meshing is performed. An initial coupling field is established and balanced based on the geological model, and then excavation simulation of the salt cavern hydrogen storage is performed. A geological model after excavation and related parameter values thereof are imported into TOUGH2MP software, a stress model in FLAC3D software is coupled with hydraulic and thermal models in the TOUGH2MP software to simulate a stress, hydraulic, and thermal coupling behavior process of rock layers around the salt cavern hydrogen storage in the area, and a coupled simulation result is obtained.

公开(公告)号：US12130646B2

公开(公告)日：2024-10-29

申请号：US18034401

申请日：2022-12-22

Applicant: SICHUAN UNIVERSITY

Inventor： Zetian Zhang ,  Heping Xie ,  Ru Zhang ,  Yihang Li ,  Jianan Li ,  Ling Chen ,  Mingzhong Gao ,  Wei Huang ,  Li Ren ,  Chendi Lou ,  Kun Xiao ,  Weiqiang Ling ,  Zhilong Zhang

IPC: G05D27/02 ,  G05D16/20

CPC classification number: G05D27/02 ,  G05D16/2066

Abstract: A real-time temperature-pressure detection and rapid processing system for a calibration platform, comprises an inner return pipe, and a water supply pipe is provided therein with an inner water supply pipe. An outer wall of the inner water supply pipe is connected with an inner wall of the water supply pipe through multiple springs. An outer wall of the inner return pipe is connected with an inner wall of a return pipe through multiple springs. The return pipe and the water supply pipe are made of a thermosetting polymer material. The multiple springs, the inner water supply pipe, and the inner return pipe are covered with a heat conducting material. The system further includes a temperature-pressure detection assembly. The assembly includes multiple infrared sensors arranged at two sides of the return pipe and the water supply pipe, a booster pump, a heater, and infrared sensors connected with a control unit.

公开(公告)号：US12128512B2

公开(公告)日：2024-10-29

申请号：US18031357

申请日：2022-09-23

Applicant: SICHUAN UNIVERSITY

Inventor： Heping Xie ,  Ru Zhang ,  Zetian Zhang ,  Ling Chen ,  Mingzhong Gao ,  Zhilong Zhang ,  Yang Yang ,  Jianan Li ,  Wei Huang ,  Li Ren ,  Yihang Li ,  Kun Xiao ,  Weiqiang Ling ,  Chendi Lou ,  Heng Gao

IPC: B23P19/04 ,  B23P19/10 ,  E21B41/00 ,  G01M99/00 ,  E21B25/00

CPC classification number: B23P19/04 ,  B23P19/10 ,  E21B41/00 ,  G01M99/008 ,  E21B25/00 ,  Y10T29/49895

Abstract: An assembly method for a deep in-situ high-fidelity coring calibration platform includes the following steps: S1: fixing a core bin assembly subsystem on a preset ground foundation and fixing a simulator of a core bin on a mounting base plate of the core bin assembly subsystem; S2: driving a cylinder and driving the mounting base plate to move to a preset position; S3: driving a servo motor and controlling two clips to move close to each other; S4: fixing a drill pipe bin assembly subsystem on the ground foundation; S5: assembling multiple sections of a drill pipe bin in turn; aligning and connecting a bottom of the drill pipe bin to the simulator, and aligning and communicating the top of the drill pipe bin with the lower part of an adaptive drill pipe guide structure; and S6: driving the adaptive drill pipe guide structure to perform accurate positioning.

公开(公告)号：US20240289521A1

公开(公告)日：2024-08-29

申请号：US18442107

申请日：2024-02-15

Applicant: Sichuan University ,  Zhengzhou University

Inventor： Zhengmeng Hou ,  Yanli Fang ,  Jianhua Liu ,  Liangchao Huang ,  Jianwei Tang ,  Li Ren

IPC: G06F30/23 ,  E21B41/00 ,  G06F111/10

CPC classification number: G06F30/23 ,  E21B41/0057 ,  E21B2200/20 ,  G06F2111/10

Abstract: The disclosure relates to the field of underground salt cavern energy storage, and discloses a coupling numerical simulation method for site selection of an underground salt cavern hydrogen storage, which specifically comprises the following. Geological data of an area where the salt cavern hydrogen storage is to be established is obtained. A three-dimensional model is established and grid meshing is performed. An initial coupling field is established and balanced based on the geological model, and then excavation simulation of the salt cavern hydrogen storage is performed. A geological model after excavation and related parameter values thereof are imported into TOUGH2MP software, a stress model in FLAC3D software is coupled with hydraulic and thermal models in the TOUGH2MP software to simulate a stress, hydraulic, and thermal coupling behavior process of rock layers around the salt cavern hydrogen storage in the area, and a coupled simulation result is obtained.

公开(公告)号：US12071820B2

公开(公告)日：2024-08-27

申请号：US18031628

申请日：2022-08-22

Applicant: SICHUAN UNIVERSITY

Inventor： Ru Zhang ,  Heping Xie ,  Zetian Zhang ,  Li Ren ,  Zhilong Zhang ,  Yihang Li ,  Weiqiang Ling ,  Heng Gao

IPC: E21B19/16 ,  E21B49/02 ,  G01M99/00 ,  G01N3/12 ,  G09B25/02

CPC classification number: E21B19/165 ,  G01M99/002 ,  G01N3/12 ,  E21B49/02 ,  G01N2203/0232 ,  G01N2203/0266 ,  G09B25/02

Abstract: A high-temperature and high-pressure simulator for a deep in-situ environment is provided. The simulator includes a high-fidelity sample chamber, where a lower end of the high-fidelity sample chamber is provided with a bottom cylinder. A lower end of the bottom cylinder is provided on a base. A piston rod of the bottom cylinder extends into the high-fidelity sample chamber, and an upper end of the piston rod is provided with a rock sample seat. An upper end of the high-fidelity sample chamber is provided with a rock sample cap. The top of the high-fidelity sample chamber is sealed by an end cap of the high-fidelity sample chamber. An upper end of the end cap of the high-fidelity sample chamber is provided with a multi-section coring drill chamber. The uppermost section of the coring drill chamber is connected to a lift cylinder.