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21.发明申请公开(公告)号：US20230008042A1
公开(公告)日：2023-01-12
申请号：US17724944
申请日：2022-04-20
Applicant: Chengdu University of Technology
Inventor： Guoqiang ZENG , Min GU , Qing LI , Chuanhao HU , Xiaofeng YANG , Shimin HU , Jian YANG
Abstract: The present disclosure provides a multi-parameter calibration system for a spectrometer based on a nanosecond light source, including a main channel for outputting nuclear pulse signals, and a coincidence channel for outputting the nuclear pulse signals. Each channel uses current nuclear pulse signals to drive a light-emitting diode (LED) to emit nuclear pulse optical signals, and a simulated scintillator is irradiated to emit nanosecond nuclear pulse optical signals. The present disclosure can respectively test and calibrate multiple parameter performance indexes of the spectrometer throughput baseline restoration spectrometer. The stability of the spectrometer is tested and calibrated through output of certain regular nuclear pulse signals.
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公开(公告)号：US20220342100A1
公开(公告)日：2022-10-27
申请号：US17721531
申请日：2022-04-15
Applicant: CHENGDU UNIVERSITY OF TECHNOLOGY
Inventor： Huaguo WEN , Xin LUO , Cai PENG , Yun LI , Yan WEI
IPC: G01V1/30
Abstract: A method for identifying a reef-shoal reservoir in a faulted lacustrine basin based on a basement structure-paleogeomorphology-seismic facies progressive constraint, including: analyzing a basement structure of a work area; establishing a paleogeomorphology classification standard according to thickness, reflection structure and stratigraphic dip; based on well-seismic calibration and forward modeling, establishing a seismic facies classification standard for reef-shoal facies belts under different paleo-geomorphic conditions, and quantitatively predicting and describing a reservoir in the reef-shoal facies belts using seismic facies-controlled inversion; and according to analysis results of basement structure characteristic, paleogeomorphology classification and seismic facies, establishing a method for predicting a favorable reservoir.
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公开(公告)号：US11465153B2
公开(公告)日：2022-10-11
申请号：US17130788
申请日：2020-12-22
Applicant: CHENGDU UNIVERSITY OF TECHNOLOGY
Inventor： Xingqiao Deng , Zhifei Du , Lun Wang , Chengfu Li
IPC: B02C4/30
Abstract: The present invention relates to an anti-adhesion crushing tool for crushing damp ores. The anti-adhesion crushing tool can effectively improve the current working environment in attapulgite crushing, and is beneficial to effectively improve the anti-adhesion properties of the attapulgite clay.
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公开(公告)号：US20220163866A1
公开(公告)日：2022-05-26
申请号：US17319104
申请日：2021-05-13
Applicant: Chengdu University of Technology
Inventor： Ming YIN , Yongzhi LUO , Xiyue LIN
Abstract: An all-optical optical parametric oscillator includes a laser module, a temperature control module, a plurality of filters and a beam splitter arranged in sequence. A bulk material or waveguide material is arranged in the temperature control module. Both ends of the bulk material are provided with a first OPO cavity mirror M1′ and a second OPO cavity mirror M2′. Each of the first OPO cavity mirror M1′ and the second OPO cavity mirror M2′ is coated with a high-reflectivity film with respect to an OPO signal light and an OPO idler light, and coated with a high-transmittance film with respect to an OPO pump light, a poling fundamental frequency light and a poling frequency doubled light. The temperature of the material is changed by changing the temperature of the temperature control module to realize temperature tuning of wavelength λs of the OPO signal light and wavelength λi of the OPO idler light.
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25.发明授权公开(公告)号：US11333783B2
公开(公告)日：2022-05-17
申请号：US16264662
申请日：2019-01-31
Applicant: Chengdu University of Technology
Inventor： Xuehua Chen , Shuaishuai Jiang , Jie Zhang , Wei Jiang , Bingnan Lv
IPC: G01V1/50
Abstract: A method for estimating the depth-domain seismic wavelets from depth-domain seismic data and synthesizing depth-domain seismic records. The method includes: obtaining depth coordinates and P-wave velocity v and density from well log, calculating a corresponding reflectivity series r; performing constant-velocity depth conversion for a seismic trace S and a reflectivity series r by using a velocity vc as a reference velocity to obtain the converted seismic trace S1 and the converted reflectivity series r1; and estimating a depth-domain seismic wavelet w based on the Gibbs sampling method; synthesizing depth-domain seismic record by using the P-wave v, the reflectivity series r and the estimated depth-domain seismic wavelet w.
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Patent Agency Ranking
公开(公告)号：US20210199535A1
公开(公告)日：2021-07-01
申请号：US16982439
申请日：2019-04-04
Inventor： Jun LIU , Xiaoqiang GUO , Qingyou LIU , Yufa HE , Anchao WEI , Linlin ZENG , Jianxun WANG
IPC: G01M7/02
Abstract: The present invention discloses a testing device and method for simulating longitudinal-transverse-torsional coupled nonlinear vibration of a drill string in deep-water riser-free drilling. The testing device comprises a pool (1), a motor (2) and a hook load adjustment device (3), wherein a guide wheel (4) is provided on the top of the pool (1); a support seat A (5) and a support seat B (6) are fixed on the bottom surface of the pool (1); an organic glass tube (8) is fixed between the support seat A (5) and the support seat B (6); a casing (9) is respectively provided on the top surface of the support seat B (6) and the top surface of the trailer (7); the left end of the plastic tube (10) extends into the organic glass tube (8) along the axis of the organic glass tube (8). The present invention further discloses a simulation method. The present invention has the following beneficial effects: the structure is compact; the longitudinal-transverse-torsion coupled vibration responses of the drill string under different rotating speeds of the drill string, ocean flow rates, flow rates of the drilling fluid, torsional excitations and longitudinal excitations at the bottom of the formation section is simulated, thereby filling up the blank in the riser-free drilling system.
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公开(公告)号：US10989639B1
公开(公告)日：2021-04-27
申请号：US17137388
申请日：2020-12-30
Applicant: Chengdu University of Technology
Inventor： Hao Zhang , Bin Yang , Ying Zhong , Yang Yang , Jiping She , Guanchang Pan , Kun Chang , Xinyang Wang
Abstract: The invention discloses an experimental test method for subcritical propagation rate of rock fractures based on triaxial stress-strain curve, including: Step 1: preparing test sample core for experiment; Step 2: putting core into triaxial rock mechanics test system, applying constant radial confining pressure to core, and applying axial stress in the axial direction until the core is macroscopically damaged; recording experimental parameters of axial stress, strain and corresponding loading time of the core; Step 3: drawing stress-strain curve of the test core according to detection data points of axial stress and axial strain; Step 4: in the stress-strain curve of the test core, starting time and ending time of the subcritical propagation stage of fractures inside the core correspond to the initiation stress σci and damage stress σcd, respectively, and calculating subcritical propagation rate of the subcritical fracture propagation stage of the test core.
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公开(公告)号：US20200158900A1
公开(公告)日：2020-05-21
申请号：US16690050
申请日：2019-11-20
Applicant: Chengdu University of Technology
IPC: G01V1/30
Abstract: The invention relates to petroleum seismic exploration, and more specifically to a method for gas-bearing reservoir characterization using logging information. In the method, logging information is used as a constraint to indirectly characterize the distribution range of the gas-bearing reservoir by determining the upper and lower boundaries. In addition, this method enables the automatic determination of the optimal calculation parameters according to the characteristics of input data, allowing for more accurate results.
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公开(公告)号：US10656292B2
公开(公告)日：2020-05-19
申请号：US15942366
申请日：2018-03-30
Applicant: Chengdu University of Technology
Inventor： Jianbo Yang , Xianguo Tuo , Yi Cheng , Honghui Wang , Lei Wang , Mingzhe Liu
IPC: G01T3/00
Abstract: A water pumping and injecting multi-layered concentric sphere neutron spectrometer includes a neutron detector, a plurality of shells concentrically provided, and a water pumping and injecting device; wherein an innermost shell surrounds a surface of the neutron detector; gaps are formed between adjacent shells for containing liquid; the shells are made of an aluminum material; a valve is arranged on each of the shells except the innermost shell; the water pumping and injecting device is connected to the valve of each of the shells except the innermost shell, so as to input water into the gaps or output the water from the gaps. Compared with conventional neutron spectrometer, weight of the water pumping and injecting multi-layered concentric sphere device and the neutron spectrum detection system of the present invention is greatly reduced, which is conducive to transportation and utilization. Meanwhile, combination of neutron spectrum data measurement and measurement data are increased.
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30.发明申请公开(公告)号：US20190277993A1
公开(公告)日：2019-09-12
申请号：US16264662
申请日：2019-01-31
Applicant: Chengdu University of Technology
Inventor： Xuehua CHEN , Shuaishuai JIANG , Jie ZHANG , Wei JIANG , Bingnan LV
IPC: G01V1/50
Abstract: A method for estimating the depth-domain seismic wavelets from depth-domain seismic data and synthesizing depth-domain seismic records. The method includes: obtaining depth coordinates and P-wave velocity v and density from well log, calculating a corresponding reflectivity series r; performing constant-velocity depth conversion for a seismic trace S and a reflectivity series r by using a velocity v, as a reference velocity to obtain the converted seismic trace S1 and the converted reflectivity series r1; and estimating a depth-domain seismic wavelet w based on the Gibbs sampling method; synthesizing depth-domain seismic record by using the P-wave v, the reflectivity series r and the estimated depth-domain seismic wavelet w.
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