公开(公告)号：US20190331566A1

公开(公告)日：2019-10-31

申请号：US16396689

申请日：2019-04-28

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Jianliang PEI ,  Lu WANG ,  Wenxi FU ,  Xiaozhang LEI ,  Dongjie XUE ,  Yufeng WEI

IPC: G01N3/02 ,  G01N3/18 ,  G01N3/12 ,  F16C19/10 ,  F16C19/52 ,  F16C35/06

Abstract: A bearing system for rock mechanics test under high temperature and high pressure multi-field coupling includes a force sensor lifting seat and a jack. The force sensor lifting seat includes a connecting disk connected with the jack, a support disk, and an operation channel. A groove dented downwards is arranged on the connecting disk, the support disk is disposed in the groove and freely propped upon the connecting disk; through holes of the connecting disk and the support disk form a control operation channel; and a limiting device is arranged for preventing an MTS triaxial force sensor from disengaging from the support disk. A bolt hole of the force sensor can be aligned with a mounting hole on a solid steel column by rotating the connecting disk for convenient and accurate bolting.

公开(公告)号：US20190331569A1

公开(公告)日：2019-10-31

申请号：US16396772

申请日：2019-04-29

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Jianliang PEI ,  Wenxi FU ,  Jianhui DENG ,  Zhide WU ,  Huining XU ,  Lu WANG ,  Fei WU

IPC: G01N3/06 ,  G01N3/18 ,  G01N33/24

Abstract: A rock damage mechanics test system for high temperature and high pressure deep earth environment includes an MTS triaxial test machine and a control system connected therewith. The MTS triaxial test machine is composed of a rigid frame, a high temperature and high pressure triaxial chamber, and a triaxial chamber base. The control system includes a workstation for data processing and a manual controller for controlling the workstation and a master controller. The system improves mounting and dismounting efficiency of an MTS triaxial force sensor, enhances reliability of lifting and solves the problem of aligning holes during the force sensor mounting process, thus improving the mounting efficiency.

公开(公告)号：US20180372893A1

公开(公告)日：2018-12-27

申请号：US16015235

申请日：2018-06-22

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Lu WANG ,  Huining XU ,  Jianliang PEI ,  Jun ZHENG ,  Wenxi FU ,  Xiaozhang LEI ,  Jianhui DENG

IPC: G01V1/16 ,  G01V1/18

Abstract: The invention discloses a rock damage acoustic monitoring system including an acoustic emission sensor installed in a borehole of a monitored rock mass and a ground workstation. The acoustic emission sensor is composed of an acoustic emission probe and a probe installation mechanism for installing the acoustic emission probe and a transmission mechanism for transmitting the probe installation mechanism. The probe installation mechanism includes a shell, a probe sleeve installed in the shell, an end cap fixed on the upper end surface of the probe sleeve, and a piston hydro-cylinder arranged between the top of the inner wall of the shell and the end cap. The present invention realizes the control of the moving direction of the shell and the probe sleeve by the piston hydro-cylinder component and the hydraulic pump.

公开(公告)号：US20180372690A1

公开(公告)日：2018-12-27

申请号：US16016829

申请日：2018-06-25

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Huining XU ,  Jianliang PEI ,  Lu WANG ,  Chunping WANG ,  Xiaozhang LEI ,  Wenxi FU ,  Jianhui DENG

IPC: G01N29/14 ,  G01N29/24 ,  E21B49/00

Abstract: The present invention discloses an acoustic emission sensor, including an acoustic emission probe, a probe installation mechanism, and a transmission mechanism transmitting a combination of the acoustic emission probe and the probe installation mechanism to a setting position in a borehole of a monitored rock mass; the probe installation mechanism includes a shell, a probe sleeve, a spring sleeve, a spring, and a fixed pulley component; the probe sleeve is installed in the guide cylinder of the shell, the spring sleeve is fixed on two sides of the probe sleeve, the spring is installed inside the spring sleeve; one end of the first rope in the fixed pulley component is fixedly connected to the end cap in the upper end surface of the probe sleeve through the fixed pulley mounted on the top of the inner wall of the shell.

公开(公告)号：US20180364377A1

公开(公告)日：2018-12-20

申请号：US16008044

申请日：2018-06-14

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Jianliang PEI ,  Lu WANG ,  Huining XU ,  Xiaozhang LEI ,  Wenxi FU ,  Jianhui DENG

IPC: G01V1/16 ,  G01V1/18

Abstract: A test system for a microseismic test of rock mass fractures provided by the present invention includes at least one microseismic sensor, a push rod provided at two ends of the microseismic sensor through a connecting mechanism for feeding the microseismic sensor into a monitoring hole , an introducing mechanism mounted on the push rod for introducing the microseismic sensor into the monitoring hole, a hydraulic system providing support hydraulic oil for the microseismic sensor, a microseismic monitoring computer connected with the signal of microseismic sensor through; the microseismic sensor includes a microseismic probe, a holding component holding the microseismic probe, a support plate and a hydraulic support mechanism; the connecting mechanism can make the push rod swing relative to the microseismic sensor, and the introducing mechanism is three-rollers introducing mechanism.

公开(公告)号：US20160231286A1

公开(公告)日：2016-08-11

申请号：US15016326

申请日：2016-02-05

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Yang JU ,  Jianliang PEI ,  Lu WANG ,  Huining XU ,  Yangmengdi XU ,  Feng DAI ,  Wenxi FU

IPC: G01N29/14

CPC classification number: G01N29/14 ,  G01N29/043 ,  G01N29/223 ,  G01N2291/0232

Abstract: An adjustable fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to install the installation bases on the fixing frame. The fixing frame is a rectangular frame, and at least a pair of opposite frame walls of four frame walls is provided with installation slots adapted to install the installation mechanisms. The installation slots positioned at different frame walls are in a same cross section of the rectangular frame. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.

Abstract translation: 一种用于岩石损伤测试的声发射测试传感器的可调节固定装置，该装置包括：固定框架; 安装基座分别操作以容纳声发射测试传感器; 固定组件，用于将声发射测试传感器固定在安装基座中; 以及安装机构，用于将安装基座安装在固定架上。 固定框架是矩形框架，并且四个框架壁的至少一对相对的框架壁设置有适于安装安装机构的安装槽。 位于不同框架壁处的安装槽位于矩形框架的相同横截面中。 每个安装基座都是圆筒结构。 气缸结构包括：对应于每个声发射测试传感器的外边缘的空腔，以及包括用于引出每个传感器的导线的间隙的壁。

公开(公告)号：US20160231215A1

公开(公告)日：2016-08-11

申请号：US15015151

申请日：2016-02-04

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Yang JU ,  Jianliang PEI ,  Huining XU ,  Lu WANG ,  Fei WU ,  Wenxi FU

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N3/32 ,  G01N2203/0405 ,  G01N2203/0447

Abstract: A rock sample fixing device with position-limit spring components for cyclic tension and compression tests including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.

Abstract translation: 具有循环张力和压缩试验的位置限制弹簧部件的岩石样品定影装置，包括：下夹具和上夹具; 所述下夹具包括连接到测试机底部的装载基座的下连接器，用于固定样本的下端盖，连接下连接器和下端盖的下链，第一中心位置限位机构， 第二中心位置限制机构和第一液压机构; 上夹具包括连接到测试机顶部的装载基座的上连接器，用于固定样本的上端盖，连接上连接器和上端盖的上链，第三中心位置限位机构， 第四中心位置限制机构和第二液压机构。

公开(公告)号：US20160231213A1

公开(公告)日：2016-08-11

申请号：US15015082

申请日：2016-02-03

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Yang JU ,  Jianliang PEI ,  Lu WANG ,  Huining XU ,  Fei WU

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N2203/0405 ,  G01N2203/0447

Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, and a second central position-limit mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, and a fourth central position-limit mechanism. The upper end cap includes a second sample fixing groove and a second connecting segment.

公开(公告)号：US20140326450A1

公开(公告)日：2014-11-06

申请号：US14335935

申请日：2014-07-20

Applicant: SICHUAN UNIVERSITY

Inventor： Feng GAO ,  Heping XIE ,  Fubao ZHOU ,  Yang JU ,  Lingzhi XIE ,  Yingke LIU ,  Yanan GAO ,  Jianfeng LIU ,  Ru ZHANG

IPC: E21B43/16

CPC classification number: E21B43/168 ,  E21B43/24 ,  E21B43/247 ,  E21B43/26

Abstract: A pneumatic fracturing method for exploiting shale gas, the method including: 1) applying a compressed gas for a first period of time at a first pressure to a shale formation; 2) applying the compressed gas for a second period of time at a second pressure to the shale formation; and 3) repeating steps 1) and 2) to produce fissures in the shale formation. A temperature of the compressed gas is at least 80° C. A maximum pressure of the compressed gas is at least 25 megapascal, and a minimum pressure of the compressed gas is between ¼ and ⅓ of the maximum pressure.

Abstract translation: 一种开采页岩气的气压破碎方法，该方法包括：1）将第一次压缩的压缩气体以第一压力施加到页岩层; 2）将压缩气体以第二压力施加到页岩层; 和3）重复步骤1）和2）在页岩层中产生裂缝。 压缩气体的温度为至少80℃。压缩气体的最大压力为至少25兆帕，压缩气体的最小压力为最大压力的1/4和1/3。