公开(公告)号：US09347301B2

公开(公告)日：2016-05-24

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: E21B43/247 ,  E21B43/26 ,  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。

公开(公告)号：US09488560B2

公开(公告)日：2016-11-08

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：US10006887B2

公开(公告)日：2018-06-26

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 ,  G01N29/04 ,  G01N29/22

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.

公开(公告)号：US09494502B2

公开(公告)日：2016-11-15

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.

Abstract translation: 一种用于固定岩石样品的装置，该装置包括：下夹具和上夹具。 下夹具包括：连接到底部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，第一螺旋弹簧，第一中心位置限位机构和 第二个中心位置限制机制。 下端盖包括：第一样品固定槽和第一连接段。 上夹具包括：连接到顶部装载基座的上连接器，用于固定样品的上端盖，与上连接器和上端盖连接的上链，第二螺旋弹簧，第三中心位置限制机构 ，以及第四中心位置限制机构。 上端盖包括第二样品固定槽和第二连接段。

公开(公告)号：US10018595B2

公开(公告)日：2018-07-10

申请号：US15016354

申请日：2016-02-05

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Jianliang Pei ,  Huining Xu ,  Lu Wang

IPC: G01N29/14 ,  G01N29/22

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

Abstract: A 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 arrange the installation bases on the fixing frame. The fixing frame is an assembled loop-shaped frame and includes between two and four frame members and corresponding fixing structures; and the frame members are assembled into an integrated loop-shaped frame by the fixing structures. 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.

公开(公告)号：US09714891B2

公开(公告)日：2017-07-25

申请号：US15015150

申请日：2016-02-04

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Huining Xu ,  Lu Wang ,  Yangmengdi Xu ,  Hang Zou ,  Zhiwei Zhou ,  Yue Zhuo

IPC: G01N3/04 ,  G01N3/10 ,  G01N33/24 ,  G01N3/08

CPC classification number: G01N3/04 ,  G01N3/08 ,  G01N3/10 ,  G01N33/24 ,  G01N2203/0017 ,  G01N2203/0048 ,  G01N2203/0405 ,  G01N2203/0411 ,  G01N2203/0447

Abstract: A device for fixing a rock sample, 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 spiral spring, 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 second spiral spring, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.

公开(公告)号：US09500574B2

公开(公告)日：2016-11-22

申请号：US15015156

申请日：2016-02-04

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Yang Ju ,  Jianliang Pei ,  Huining Xu ,  Lu Wang ,  Yangmengdi Xu ,  Hang Zou

IPC: G01N3/08

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

Abstract: A rock sample fixing device with a three-jaw chuck for cyclic tension and compression testing 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: 具有用于循环张力和压缩测试的三爪卡盘的岩石样品固定装置，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：US10018594B2

公开(公告)日：2018-07-10

申请号：US15016315

申请日：2016-02-05

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Lu Wang ,  Huining Xu ,  Jianping Zuo ,  Yangmengdi Xu ,  Hang Zou ,  Zhiwei Zhou ,  Yue Zhuo

IPC: G01N29/14 ,  G01N29/22

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

Abstract: A 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 an integrated loop-shaped frame. Each of the installation bases is a cylinder structure which 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. The installation mechanisms are adapted to automatically and axially adjust positions of the installation bases. The installation mechanisms are four in number. The four installation mechanisms are disposed on a same section plane of the fixing frame and every two installation mechanisms are oppositely disposed.

公开(公告)号：US09574980B2

公开(公告)日：2017-02-21

申请号：US15013988

申请日：2016-02-02

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Yong Xiang ,  Huining Xu ,  Yangmengdi Xu ,  Hang Zou ,  Zhiwei Zhou ,  Yue Zhuo

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N33/24 ,  G01N2203/0017 ,  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.

Abstract translation: 一种用于固定岩石样品的装置，该装置包括：下夹具和上夹具。 下夹具包括：连接到底部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，第一螺旋弹簧，第一中心位置限位机构和 第二个中心位置限制机制。 下端盖包括：第一样品固定槽和第一连接段。 上夹具包括：连接到顶部装载基座的上连接器，用于固定样品的上端盖，与上连接器和上端盖连接的上链，第二螺旋弹簧，第三中心位置限制机构 ，以及第四中心位置限制机构。 上端盖包括第二样品固定槽和第二连接段。