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公开(公告)号：US10508247B2
公开(公告)日：2019-12-17
申请号：US16386872
申请日：2019-04-17
Applicant: China University of Petroleum (East China)
Inventor： Yuanyu Tian , Yingyun Qiao , Juntao Zhang , Jinhong Zhang , Yuan Jiang , Jie Li
Abstract: The invention provides a process of maximizing production of chemical raw materials by gaseous phase catalytic cracking crude oil with multi-stages in milliseconds in combination with hydrogenation, comprising: a high-efficiency atomizing nozzle sprays the preheated crude oil into an upper portion of the downflow modification reaction tube, the produced oil mist is mixed with a high temperature heat carrier flowing downward from a first return controller for pyrolysis in milliseconds and then the pyrolysis products are subject to a gas-solid separation; the coked heat carrier obtained by the separation enters into a modification regeneration reactor to conduct a regeneration reaction, the obtained high temperature heat carrier returns to a top of the downflow reaction tube to participate in circulation, the regeneration gas is subject to heat exchange and then output; the high temperature oil and gas produced by the pyrolysis reaction directly flow into the millisecond cracking reactor and conduct a cracking reaction with the regenerated cracking catalyst and subject to a gas-solid separation; then the cracking catalyst to be regenerated enters the crack regeneration reactor and performs a regeneration reaction and then are subject to a gas-solid separation, the obtained high temperature crack catalyst passes through a second return controller and flows into the millisecond cracking reactor to participate the circulation reaction, the obtained flue gas is subject to heat exchange and then output; the cracked oil and gas produced by the cracking reaction enter into a fractionation tower for separation, thereby obtain the cracked gas, gasoline fraction, diesel fraction, recycle oil and oil slurry; furthermore, the diesel fraction, recycle oil and oil slurry are subject to saturation or open-ring in a hydrogenation reactor, return and mix with crude oil such that the mixture is used as a raw material.
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92.发明申请公开(公告)号：US20190354889A1
公开(公告)日：2019-11-21
申请号：US16476004
申请日：2017-12-20
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Yucai ZHANG , Wenchun JIANG , Huiqin ZHAO , Shandong TU , Xuefang XIE , Xiang LING
Abstract: Disclosed is a method of predicting a failure probability of a brittle material in a high temperature creep state. Based on the prior art, assuming that an uniaxial creep failure strain obeys Weibull Distribution in combination with a natural attribute of random distribution of internal defects of the brittle material, a probability density distribution curve of the uniaxial creep failure strain is obtained by using an uniaxial creep test, and a probability density function of a multiaxial creep failure strain is obtained based on a conversion relationship of uniaxial and multiaxial creep failure strains and further a calculation model of a failure probability is obtained by integration; based on this, a prediction result of a failure probability of the brittle material in the high temperature creep state is obtained by writing a sub-program by using a Fortran language and embedding the sub-program into a finite element software in combination with a creep-damage constitutive equation. This present disclosure solves a technical problem that a reliability prediction cannot be performed for a brittle material in a high temperature creep state in the prior art, and the obtained prediction result is true, accurate, reasonable and reliable.
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公开(公告)号：US20190330518A1
公开(公告)日：2019-10-31
申请号：US16392315
申请日：2019-04-23
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) , CHINA UNIVERSITY OF GEOSCIENCES (BEIJING) , SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE LTD., PETRO CHINA
Inventor： Caili DAI , Mingwei GAO , Mingwei ZHAO , Qing YOU , Guang ZHAO , Yining WU , Yongpeng SUN , Lin LI , Yifei LIU , He LIU , Xin WANG , Baoshan GUAN
Abstract: A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.
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公开(公告)号：US20190321833A1
公开(公告)日：2019-10-24
申请号：US16055321
申请日：2018-08-06
Inventor： Chunxi Lu , Sihong Gao , Yiping Fan , Dandan Zhang , Min Dai , Lijun Zhou
Abstract: A separation device, comprising: a third-stage cyclone housing, a separating unit, and a granule recycle and regeneration unit, wherein, the separating unit is disposed inside the third-stage cyclone housing and comprises: a cyclone separator and a moving bed coupled to each other; the granule recycle and regeneration unit comprises: a riser, a spouted bed regenerator, and a regeneration pipe connecting the spouted bed regenerator with the moving bed; the spouted bed regenerator has upper and lower ends opposing to each other, wherein, the upper end of the spouted bed regenerator is provided with a sleeve which opens downwardly, the sleeve divides an interior of the spouted bed regenerator into a fountain area and an annular gap area, and a regenerating gas outlet which is in communication with the annular gap area is provided on a side wall of the spouted bed regenerator. A centrifugal separation and intercepting filtration of the moving granular bed to fine particles can separate fine particles under low pressure drop, and can continuously separate the captured dust particles and the moving bed granules ensuring a sustainable recycling of the moving bed granules.
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公开(公告)号：US20190316049A1
公开(公告)日：2019-10-17
申请号：US16386872
申请日：2019-04-17
Applicant: China University of Petroleum (East China)
Inventor： Yuanyu Tian , Yingyun Qiao , Juntao Zhang , Jinhong Zhang , Yuan Jiang , Jie Li
IPC: C10G67/02
Abstract: The invention provides a process of maximizing production of chemical raw materials by gaseous phase catalytic cracking crude oil with multi-stages in milliseconds in combination with hydrogenation, comprising: a high-efficiency atomizing nozzle sprays the preheated crude oil into an upper portion of the downflow modification reaction tube, the produced oil mist is mixed with a high temperature heat carrier flowing downward from a first return controller for pyrolysis in milliseconds and then the pyrolysis products are subject to a gas-solid separation; the coked heat carrier obtained by the separation enters into a modification regeneration reactor to conduct a regeneration reaction, the obtained high temperature heat carrier returns to a top of the downflow reaction tube to participate in circulation, the regeneration gas is subject to heat exchange and then output; the high temperature oil and gas produced by the pyrolysis reaction directly flow into the millisecond cracking reactor and conduct a cracking reaction with the regenerated cracking catalyst and subject to a gas-solid separation; then the cracking catalyst to be regenerated enters the crack regeneration reactor and performs a regeneration reaction and then are subject to a gas-solid separation, the obtained high temperature crack catalyst passes through a second return controller and flows into the millisecond cracking reactor to participate the circulation reaction, the obtained flue gas is subject to heat exchange and then output; the cracked oil and gas produced by the cracking reaction enter into a fractionation tower for separation, thereby obtain the cracked gas, gasoline fraction, diesel fraction, recycle oil and oil slurry; furthermore, the diesel fraction, recycle oil and oil slurry are subject to saturation or open-ring in a hydrogenation reactor, return and mix with crude oil such that the mixture is used as a raw material.
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Patent Agency Ranking
96.发明申请公开(公告)号：US20190277996A1
公开(公告)日：2019-09-12
申请号：US16238409
申请日：2019-01-02
Applicant: CHINA UNIVERSITY OF PETROLEUM - BEIJING
Inventor： LIZHI XIAO , GUANGZHI LIAO , WEI LIU
Abstract: Provided is a radio frequency antenna receiving method and device for a downhole three-dimensional scanning nuclear magnetic resonance imager. The device comprises: an array antenna for receiving an echo signal, an antenna interface circuit, a receiving and amplifying circuit for amplifying the echo signal, an analog-to-digital conversion circuit, a signal collecting circuit and a control circuit, which are sequentially connected; the array antenna comprises N antenna units, where N≥4; four ports of the control circuit are respectively connected to the antenna interface circuit, the receiving and amplifying circuit, the analog-to-digital conversion circuit and the signal collecting circuit so as to control them, and the control circuit is connected to a logging ground acquisition system; the antenna interface circuit selects one antenna unit in the array antenna. The method and device of the present invention can perform signal detection in a circumferentially multi-directional sensitive region.
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97.发明申请公开(公告)号：US20190242225A1
公开(公告)日：2019-08-08
申请号：US16194339
申请日：2018-11-18
Applicant: China University of Petroleum (East China)
Inventor： Zhaomin LI , Shouya WU , Chao ZHANG , Binfei LI , Yuliang SU , Guangzhong LV , Meijia WANG
CPC classification number: E21B43/164 , C09K8/594 , C09K8/74 , E21B47/06
Abstract: A method for extracting tight oil includes the steps of performing several cycles of carbon dioxide huffing-puffing; selecting three adjacent cracks; installing a double-layered concentric oil tubing or two parallel oil tubes in a casing in the horizontal wellbore, and dividing space in the casing into an injection channel, an extraction channel a, and an extraction channel b; communicating the injection channel with the target injection crack; communicating the extraction channel a with the extraction crack a; and communicating the extraction channel b with the extraction crack b; injecting carbon dioxide from the wellbore into the injection channel, directing the crude oil into the extraction crack a and the extraction crack b from both sides of the target injection crack by carbon dioxide flooding and displacement, and extracting the crude oil along the extraction channel a and the extraction channel b.
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98.发明授权公开(公告)号：US10371859B2
公开(公告)日：2019-08-06
申请号：US15989861
申请日：2018-05-25
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Jian Hou , Kang Zhou , Yongge Liu , Qingjun Du , Bo Yu
Abstract: Disclosed is a method for simulation of a microscopic flow of pre-crosslinked gel suspension liquid in a porous medium, including the steps of: establishing a simulation area of the porous medium based on a two-dimensional core CT slice image and subjecting the simulation area to numerical grid discretization; setting initial position and original shape of pre-crosslinked gel particles to generate virtual boundary mark points; marking the type of numeric grid nodes; calculating the force of the fluid on each virtual boundary mark point according to the momentum change of the numerical grid nodes on the boundary of the pre-crosslinked gel particles; calculating the contact force on each virtual boundary mark point using a particle contact action model; calculating the bending recovery force and the stretching recovery force for each virtual boundary mark point based on the current shape and original shape of the pre-crosslinked gel particles; and calculating the velocity and displacement of each virtual boundary mark point based on Newton's second law, wherein the respective virtual boundary mark points are connected to obtain the overall shape and position of the pre-crosslinked gel particles.
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99.发明申请公开(公告)号：US20190224652A1
公开(公告)日：2019-07-25
申请号：US16237857
申请日：2019-01-02
Applicant: China University of Petroleum-Beijing
Inventor： Haiyan Liu , Lina Zhang , Xiaojun Bao
IPC: B01J29/00 , B01J21/16 , B01J29/85 , B01J29/40 , B01J21/04 , B01J21/12 , B01J21/08 , B01J37/00 , B01J37/30 , B01J35/08 , B01J35/02 , B01J37/02 , B01J37/06 , B01J37/04 , B01J37/08 , B01J37/03 , C07C1/24
Abstract: The present invention relates to a composite catalytic material of SAPO-34/ZSM-5@kaolin microspheres and its preparation and use, the method comprises the steps of: 1) processing kaolin into kaolin microspheres, and baking them to obtain activated kaolin microspheres; 2) mixing the activated kaolin microspheres obtained in step 1), water, a phosphorus source, and a template agent to prepare a gel; 3) mixing the gel obtained in step 2) and a ZSM-5 molecular sieve, and carrying out aging, crystallization, and separation to obtain a composite material of SAPO-34/ZSM-5@kaolin; 4) subjecting the composite material obtained in step 3) to ammonium exchange treatment and baking, to obtain the composite catalytic material of SAPO-34/ZSM-5@kaolin microspheres. The present invention not only greatly shortens the preparation route for the catalyst and reduces the cost of catalyst preparation, but also allows adjustment of the fractions of SAPO-34 and ZSM-5 molecular sieves in the composite material by adjustment of the synthesis conditions.
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100.发明申请公开(公告)号：US20190219649A1
公开(公告)日：2019-07-18
申请号：US16238369
申请日：2019-01-02
Applicant: CHINA UNIVERSITY OF PETROLEUM - BEIJING
Inventor： LIZHI XIAO , GUANGZHI LIAO , WEI LIU , YAO WEI , YANGYANG XU
Abstract: Provided is an array antenna driving method and device for a three-dimensional scanning nuclear magnetic resonance imager, wherein each antenna to be operated is driven to transmit a nuclear magnetic pulse signal by receiving a control command sent by a control system; parsing the control command to generate a pulse transmission timing signal and an antenna switching control signal; processing an externally inputted high voltage signal according to the pulse transmission timing signal to output high voltage radio frequency pulses of a plurality of channels; and selecting a high voltage radio frequency pulse of at least one channel and the antenna to be operated in the nuclear magnetic resonance pulse array antenna according to the antenna switching control signal, and superposing the selected high voltage radio frequency pulse. The device of the present invention can improve multi-layer slice information detection of signals in circumferentially different azimuth zones.
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