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1.发明授权公开(公告)号：US11371320B2
公开(公告)日：2022-06-28
申请号：US17296224
申请日：2020-04-24
Inventor： Yang Ju , Jinxin Song , Peng Liu
Abstract: An experimental method and system for simulating the evolution of reservoir fracture stress field, the experimental method comprises the following steps: (S1) preparing horizontal well fracturing model (100); (S2) applying boundary loads and constraints to the horizontal well fracturing model (100); (S3) injecting fracturing fluid or fracturing gas into a fracturing wellbore (130) of the horizontal well fracturing model (100) after loading for fracturing; in a fracturing stage, a photoelastic fringe image of the horizontal well fracturing model (100) is obtained by an optical phase shift method; the fracturing stage comprises an initial state before fracturing fluid or fracturing gas is injected and an end state after fracturing is completed. The experimental method and system can effectively simulate the whole process of horizontal well fracturing, and accurately obtain the variation law of reservoir stress field and its influence on crack propagation during horizontal well fracturing.
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公开(公告)号：US09891178B2
公开(公告)日：2018-02-13
申请号：US15539835
申请日：2016-07-05
Inventor： Yang Ju , Jianqiang Wang , Ruidong Peng , Lingtao Mao , Hongbin Liu
CPC classification number: G01N23/046 , G01N2223/311 , G06T11/005 , G06T2207/10081 , G06T2211/428
Abstract: An industrial CT scanning test system. The test system includes a test base, a multi-axis motion swivel table supported on the test base, a ray generator, an image acquisition device, and a fluid pressure loading device, and further includes a control device. The fluid pressure loading device includes at least one loading cylinder, and in case of performing a scanning experiment, the at least one loading cylinder is placed on a sample stage of the multi-axis motion swivel table together with a sample, and real-time loading of loads in different directions on the sample is performed according to test requirements.
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3.发明授权公开(公告)号：US12169147B2
公开(公告)日：2024-12-17
申请号：US18039993
申请日：2021-11-11
Inventor： Yang Ju , Jiangtao Zheng , Zhangyu Ren , Wenbo Gong
Abstract: Disclosed are a testing system and method under fluid-solid coupling effects. A dynamic stress field during fluid flow, deformation of a porous rock framework, real-time evolution of the stress field and deformation of a fluid-solid interface under fluid-solid coupling effects can be obtained, on the basis of a collected photo-elastic stripe image and a surface deformation image. A stress field of a solid framework and fluid in porous rock, and a strain field of the solid framework and the fluid-solid interface under fluid-solid coupling effects can be visually and quantitatively displayed by means of a display device.
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4.发明授权公开(公告)号：US11414991B2
公开(公告)日：2022-08-16
申请号：US17253126
申请日：2019-06-24
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Jixiong Zhang , Yang Ju , A. J. S. (Sam) Spearing , Meng Li , Nan Zhou , Weiqing Zhang
Abstract: Provided are a system and a method for monitoring bearing compression rate of a filler in a coal mine gob area. An ground information processing system, a vibration source control system, and a monitoring system are arranged on the ground according to a buried depth of the filler in the gob area. The vibration source control system generates vibration, and transmits a signal to the filler. The monitoring system on the ground receives different reflected waves according to different elasticities of the fillers under different compaction degrees. Final data is transmitted to the ground information processing system for data processing. The monitoring of the filler starts when the filler is filled in the gob area; the filler is gradually compacted. The filler is monitored until the thickness of the filler does not change. Finally, a bearing compression rate formula is utilized to calculate the bearing compression rate of the filler.
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5.发明授权公开(公告)号：US10648894B2
公开(公告)日：2020-05-12
申请号：US16477850
申请日：2018-03-23
Inventor： Yang Ju , Zhangyu Ren , Li Wang , Lingtao Mao , Hongbin Liu
Abstract: A method for measuring the dynamic stress field evolution law of a complex heterogeneous structure, comprising: preparing a transparent photosensitive resin model of a complex heterogeneous structure by means of three-dimensional (3D) printing technology to serve as a test piece (S101); placing the test piece in a light path of a circularly polarized light dark field, performing continuous stress loading on the test piece, and recording images (S102); acquiring a plurality of continuously changing full-field stress fringe grayscale images according to videos generated by the image recording (S103); then acquiring grayscale value change sequences of pixel points at each position in the images (S104); and finally, calculating full-field fringe orders under continuous loading conditions according to the relation between the grayscale values and the fringe orders so as to calculate full-field stress values under the continuous loading conditions (S105). Thus, it is possible to extract and quantify the global dynamic stress field evolution law of a complex heterogeneous structure subjected to high exterior load under fixed light field conditions.
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Patent Agency Ranking
公开(公告)号：US10564080B2
公开(公告)日：2020-02-18
申请号：US16317815
申请日：2018-04-17
Inventor： Yang Ju , Peng Liu , Hongbin Liu , Yongming Yang
Abstract: A method for measuring a stress field evolution during a CO2 fracturing process is provided, which is adopted to not only transparently display the spatial distribution and propagation morphology of internal fracturing fracture of a three-dimensional physical models, but also obtain internal three-dimensional stress phase diagram in a fracture propagation process by integration of a CT scanning, a digital reconstruction, a 3D printing, a CO2 fracturing experiment, a stress freezing and a photoelastic measurement techniques, thereby realizing transparent display and quantitative characterization of the three-dimensional stress field and its evolution law of a solid matter in the CO2 fracturing process.
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公开(公告)号：US10408721B2
公开(公告)日：2019-09-10
申请号：US16313469
申请日：2017-12-07
Inventor： Yang Ju , Peng Liu , Hongbin Liu , Yongming Yang
Abstract: A device for stress-freezing experiments during fracturing process according to the present application, in which heating and cooling treatment on a specimen under corresponding temperature control according to a preset temperature gradient and a photosensitive curve is performed by a temperature control system, to realize stress-freezing of the specimen; a pressure is applied to a specimen by a true triaxial servo loading system; and corresponding fracturing experiments are performed to the specimen by a fracturing liquid pumping system having an output end arranged in a thermo-controlled oven.
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公开(公告)号：US11307131B2
公开(公告)日：2022-04-19
申请号：US17296998
申请日：2020-04-26
Inventor： Yang Ju , Jiangtao Zheng , Wei Chang , Chaodong Xi
IPC: G01N23/00 , G01N15/08 , G01N23/046
Abstract: A visualization system and method for a multiphase fluids displacement seepage experiment with large viscosity difference in a complex pore structure. The visualization system includes: an injection pump assembly, a visualized complex pore model, a vacuum pressure pump and an image acquisition device; the system and method are printed by a 3D printing device to form the visualized complex pore model with at least two permeability, and displacement fluid mediums of different viscosities are injected into the visualized complex pore model through different injection pumps during an experiment, so that not only is the penetration of the same viscosity in the complex pore structure with different permeability observed, but also the displacement and plugging effect of different viscosities successively entering the complex pore structure with different permeability is realized.
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公开(公告)号：US11261732B2
公开(公告)日：2022-03-01
申请号：US17059477
申请日：2019-06-05
Inventor： Yang Ju , Heping Xie , Yan Zhu , Xiaodong Nie , Yong Zhang
Abstract: A mining machine applicable to fluidized mining and a mining method therefor are provided herein. A microwave transmitting mechanism, a liquid jet drill rod and a cutter-head are arranged at the head of a first excavation device of the mining machine. The ore body in front is first processed by the microwave transmitting mechanism and the liquid jet drill rod to reduce the strength of the ore body, which facilitates subsequent mining of the ore body, lowers the hardness requirements of the cutter-head, and reduces the wearing of the cutter-head. With this mining machine mining the ore body, the mined ores can be directly converted, under the ground, into resources in the easily transportable form, without transporting the ore to the surface for conversion, which saves the cost of transporting the ore to the surface.
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公开(公告)号：US10975694B2
公开(公告)日：2021-04-13
申请号：US16467490
申请日：2018-03-23
Inventor： Yang Ju , Heping Xie , Yong Zhang , Yan Zhu , Feng Gao , Xiaodong Nie , Changbing Wan , Jinxin Song , Chang Lu , Hongbin Liu , Zhangyu Ren
Abstract: A mine field layout method suitable for fluidized mining of coal resources is provided. A main shaft and an air shaft are provided in the mine field, the bottom of the main shaft is located in the shallow horizontal coal seam zone, and the bottom of the air shaft is located in the deep horizontal coal seam zone. The horizontal main roadways are arranged at two boundaries along the strike of the coal seam, and inclined main roadways are arranged at two boundaries along the dip direction of the coal seam. Connecting roadways are located inside the mine field and are in communication with the horizontal main roadways. In the coal mining stage, the coal resources can be converted into the fluidized energy product and/or electricity by an unmanned automatic mining machine.
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