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公开(公告)号：US20220179018A1
公开(公告)日：2022-06-09
申请号：US17681289
申请日：2022-02-25
Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING
Inventor： Lizhi XIAO , Sihui LUO , Guangzhi LIAO , Zhengduo WANG , Yongheng FAN
Abstract: A nuclear magnetic resonance coil array and a decoupling method thereof, and a nuclear magnetic resonance detection device. The coil array includes: a coil resonant unit and a decoupling network unit, where the coil resonant unit includes multiple coil resonant circuits; the decoupling network unit includes multiple decoupling circuits; where a coil resonant circuit includes a coil and a resonant capacitor; the resonant capacitor in each coil resonant circuit is connected in parallel with the coil; the coils in each coil resonance circuit are equally spaced on a circumference; a decoupling circuit is provided between a positive terminal and a negative terminal of adjacent coils, respectively; each coil is connected to an antenna switching circuit of a nuclear magnetic resonance detection device at the same time.
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公开(公告)号：US11326450B2
公开(公告)日：2022-05-10
申请号：US17345904
申请日：2021-06-11
Applicant: China University of Petroleum (Beijing)
Inventor： Guancheng Jiang , Xiongjun Wu , Lili Yang , Yinbo He , Tengfei Dong , Xiaohu Quan , Chunyao Peng , Xuwu Luo , Bin Tan , Jun Cai , Xing Liang , Zhiliang You , Yong Wang , Bin Li , Yongbin Guo , Shen Guan
IPC: G06N3/08 , G01V99/00 , E21B49/08 , E21B49/00 , E21B47/003 , G06N3/04 , G06Q10/04 , G06Q50/02 , G01V1/28 , G06Q10/06 , E21B43/00 , G06F7/60 , E21B43/16 , E21B41/00
Abstract: The embodiments of the invention provide an intelligent prediction method and apparatus for reservoir sensitivity, belonging to the technical field of reservoir sensitivity prediction. The method includes: acquiring a reservoir sensitivity influence factor item related to a reservoir sensitivity result to be predicted and numerical values of corresponding reservoir sensitivity influence factors; determining a corresponding type of database according to the reservoir sensitivity influence factor item; determining whether numerical values of reservoir sensitivity influence factors corresponding to core parameters in the numerical values of the reservoir sensitivity influence factors include a first upper boundary value or a first lower boundary value; and using, according to whether the first upper boundary value or the first lower boundary value is included, different intelligent sensitivity prediction models to calculate the reservoir sensitivity result to be predicted.
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公开(公告)号：US20220055004A1
公开(公告)日：2022-02-24
申请号：US17153180
申请日：2021-01-20
Applicant: China University of Petroleum-Beijing
Inventor： Chunxi LU , Jiantao LI , Xiuying YAO
IPC: B01J8/18
Abstract: The present disclosure discloses a fluidized bed cooler with regional coordination enhancement, comprising a shell, a catalyst inlet, an interior of the shell is divided into a catalyst inlet influence region, a dilute phase region, a dense phase region and a gas distributor influence region; a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet, and a regional particle distributor is provided at the catalyst inlet; the dense phase region is provided with a plurality of dense phase baffle plates, and the dilute phase region is provided with a plurality of dilute phase baffle plates; and the gas distributor influence region is provided with double gas distributors. The fluidized bed cooler simultaneously well solves the low internal stability and the low heat exchange efficiency of the fluidized bed cooler, thereby realizing the stable and efficient operation of the fluidized bed cooler.
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公开(公告)号：US11136265B1
公开(公告)日：2021-10-05
申请号：US17008071
申请日：2020-08-31
Applicant: China University of Petroleum (Beijing)
Inventor： Yiqiang Li , Wenbin Gao , Zheyu Liu , Deng Pan , Yanjuan Li
Abstract: The present disclosure relates to the technical field of artificial cores, in particular to a preparation method of artificial sandstone and/or conglomerate core based on lithology and permeability control. The method comprises the following steps: mixing and molding sand particles and a cementing agent in sequence, and further adding a curing agent for performing solidification to prepare the artificial sandstone and/or conglomerate core; wherein composition of the sand particles is determined according to properties of the artificial sandstone and/or conglomerate core comprising lithology and permeability. The present disclosure combines the properties of the artificial sandstone and/or conglomerate core with the proportion of the sand particles, particularly regulates and controls the composition of the sand particles according to the lithology and permeability of the artificial sandstone and/or conglomerate core, thereby performing precise control on the artificial sandstone and/or conglomerate core.
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公开(公告)号：US11034876B1
公开(公告)日：2021-06-15
申请号：US17153260
申请日：2021-01-20
Applicant: China University of Petroleum (Beijing)
Inventor： Yinbo He , Guancheng Jiang , Tengfei Dong , Lili Yang , Wuquan Li , Haiyang Liu , Xiaoqing Li , Xuwu Luo , Li Zhao , Xianbin Huang , Jingping Liu , Jingen Deng
IPC: C09K8/24 , C08F220/58 , C08F228/02 , C08F212/14
Abstract: The invention discloses a calcium-resistant zwitterionic polymer, a preparation method and an application thereof, and a water-based drilling fluid containing the polymer as a dispersing agent, wherein the polymer contains a structural unit A, a structural unit B and a structural unit C, and the structural unit A is at least one selected from the group consisting of structural units with a structure shown in a formula (11), a structure shown in a formula (12) and a structure shown in a formula (13); the structural unit B is a structural unit with a structure shown in a formula (2); the structural unit C is at least one selected from the group consisting of structural units having a structure represented by formula (31) and a structure represented by formula (32); the weight-average molecular weight of the polymer is 350,000 to 600,000.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20210122851A1
公开(公告)日：2021-04-29
申请号：US17084262
申请日：2020-10-29
Applicant: China University of Petroleum (Beijing)
Inventor： Lili YANG , Guancheng JIANG , Xiao YANG , Tengda WANG , Yawei SHI
Abstract: The present disclosure relates to the field of drilling fluid, and particularly relates to an ionic liquid shale inhibitor for drilling fluid, and a preparation method and an application thereof. The method comprises the following steps: subjecting the imidazole-based ionic liquid to a polymerization reaction in water environment under an inert atmosphere, the produced polymer is used as an ionic liquid shale inhibitor for drilling fluid. The ionic liquid shale inhibitor for drilling fluid has the advantages of desirable inhibition effect, good compatibility, strong high-temperature resistance, simple preparation method and low cost.
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公开(公告)号：US20210087483A1
公开(公告)日：2021-03-25
申请号：US17028957
申请日：2020-09-22
Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING
Inventor： JINSEN GAO , YUMING ZHANG , XINGYING LAN , CHENGXIU WANG , XIAOGANG SHI
Abstract: A method for heavy oil lightening and synthesis gas production and a device thereof are provided, where the method uses a cracking/gasification coupled reactor, which internally has a cracking section and a gasification section that communicate with each other, and includes the following steps: feeding a heavy oil material into the cracking section to implement a cracking reaction, to produce a light oil gas and a coke; the coke being carried by the coke powders and descending into the gasification section to implement a gasification reaction, to produce a synthesis gas; at least performing a first stage gas-solid separation, collecting coke powder particles and dividing them into two parts; performing an oil and gas fractionation on a purified oil and gas product output by the gas-solid separation system, and collecting a light oil product and a synthesis gas product.
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78.发明授权公开(公告)号：US10823651B2
公开(公告)日：2020-11-03
申请号：US15965869
申请日：2018-04-28
Applicant: China University of Petroleum-Beijing (CUPB)
Inventor： Guangqing Zhang , Yuanyuan Wang , Yongwang Jiang , Cankun Lin
Abstract: The present invention provides a supercritical carbon dioxide core fracturing holder under pore pressure saturation, including a holding sleeve; a left end sleeve and a right end sleeve are correspondingly embedded at the two end ports of the holding sleeve, and a fixed plug is docked to the left end sleeve; a moving plug movably passes through the right end sleeve, and a piston ring is formed on the outer side face of the moving plug; a sealing rubber sleeve for holding a test sample is disposed; two axial fluid injection pipelines are correspondingly disposed within the fixed plug and the moving plug; and an axial displacement measuring device is disposed between the outer end of the right end sleeve and the moving plug, and a fluid injection chamber is formed between the inner wall of the holding sleeve and the outer side face of the sealing rubber sleeve.
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公开(公告)号：US10822561B2
公开(公告)日：2020-11-03
申请号：US15885686
申请日：2018-01-31
Applicant: China University of Petroleum-Beijing
Inventor： Yu Fan , Shihua Wang
Abstract: The present disclosure provides a method for producing a clean gasoline and a system for producing the same, the method includes: a full range gasoline is subjected to a directional sulfur transfer reaction, then is cut to obtain a light gasoline fraction, a medium gasoline fraction and a heavy gasoline fraction; the light gasoline fraction is treated to obtain an esterified light gasoline; the medium gasoline fraction is treated to obtain a raffinate oil and an extracted oil; the raffinate oil is treated to obtain an esterified medium gasoline; the heavy gasoline fraction is mixed with the extracted oil to obtain a mixed oil, and a one-stage hydrodesulfurization reaction, a two-stage hydrodesulfurization reaction, H2S-removal and a hydrocarbon isomerization/aromatization reaction are carried out successively to obtain a treated heavy gasoline; blending the esterified light gasoline, the esterified medium gasoline and the treated heavy gasoline to obtain a clean gasoline.
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公开(公告)号：US20200183033A1
公开(公告)日：2020-06-11
申请号：US16536402
申请日：2019-08-09
Applicant: China University of Petroleum (Beijing)
Inventor： Pinbo Ding , Bangrang Di , Jianxin Wei
IPC: G01V1/30
Abstract: The present disclosure provides a horizontal fracture prediction method, device and equipment. The method comprises: acquiring primary wave velocities and shear wave velocities of first and second incidence angle directions of seismic waves at a target fracture location, wherein a first incidence angle is smaller than a second incidence angle, and the incidence angles are included angles between propagation directions of the seismic waves and a surface normal direction of a target fracture; calculating a first primary wave/shear wave velocity ratio and a first shear wave splitting (SWS) coefficient of the first incidence angle direction; calculating a second primary wave/shear wave velocity ratio of the second incidence angle direction; and determining that the target fracture is a horizontal fracture under the condition that the first SWS coefficient is smaller than a first preset value and a ratio of the first primary wave/shear wave velocity ratio to the second primary wave/shear wave velocity ratio is smaller than a second preset value. According to embodiments of the present disclosure, whether the target fracture is the horizontal fracture or not is determined through calculating the primary wave/shear wave velocity ratio and the first SWS coefficient of the first incidence angle direction and the primary wave/shear wave velocity ratio of the second incidence angle direction, so that effective data are provided for exploration and development of coal-bed gas and shale gas.
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