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公开(公告)号：US10343128B2
公开(公告)日：2019-07-09
申请号：US16239643
申请日：2019-01-04
Applicant: China University of Petroleum (East China)
Inventor： Chunyi Li , Guowei Wang
Abstract: A reaction-regeneration device for catalytic dehydrogenation or/and catalytic cracking of alkanes comprises a reaction device and a regeneration device. The reaction device comprises a reactor and a disengager, and the disengager is located at an upper part of the reactor. The reactor comprises a tapering section, and diameters of cross sections of the tapering section gradually decrease from bottom to top. Secondary conversion of alkenes caused by back-mixing is reduced, and thus the yield and selectivity to alkenes are increased.
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公开(公告)号：US10337267B1
公开(公告)日：2019-07-02
申请号：US16122656
申请日：2018-09-05
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Zhiyuan Wang , Shaowei Pan , Baojiang Sun , Jianbo Zhang , Jing Yu
Abstract: The invention relates to the field of stratum drilling, and in particular to a control method and a control device for drilling operations. The control method comprises: detecting whether an overflow occurs in a well; controlling the wellhead back pressure based on a preset bottom hole pressure when no overflow occurs in the well, in order to keep the bottom hole pressure stable; and performing a shut-in operation and controlling the wellhead back pressure based on the increase in fluid discharge returned from an annulus of the well when an overflow occurs in the well, so as to keep the bottom hole pressure stable and prevent the gas in the stratum from continuing to invade into the drilling fluid during the process that the overflow drilling fluid is discharged from the bottom of the well. The control method and control device make it possible to prevent drastic fluctuation of the wellhead back pressure caused by the expansion of the invaded gases during the discharge thereof during the drilling operation, thereby realizing the stable control of the wellhead back pressure.
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103.发明申请公开(公告)号：US20190178046A1
公开(公告)日：2019-06-13
申请号：US16045249
申请日：2018-07-25
Applicant: CHINA UNIVERSITY OF PETROLEUM (East China) , CIMC OFFSHORE ENGINEERING RESEARCH INSTITUTE CO. LTD.
Inventor： Zhiyuan WANG , Youqiang LIAO , Baojiang SUN , Dahui LIU , Yao TENG , Yu CHEN
Abstract: The present invention relates to the field of drilling, and provides an anti-settling apparatus and a method and apparatus for checking the same, and an apparatus for preventing settlement of a well. The anti-settling apparatus of the present invention is installed in the wellhead region of the well during drilling to prevent the well from settlement. The anti-settling apparatus generally includes: an anti-settling base having an opening corresponding to the wellhead formed at the center thereof, the anti-settling base being disposed in the wellhead region during drilling; and an interlocking member 5 disposed at the opening to connect and fix a casing provided in the well with the anti-settling base. The apparatus for preventing settlement of a well comprises the anti-settling apparatus and checking method for the anti-settling apparatus.
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104.发明申请公开(公告)号：US20190153809A1
公开(公告)日：2019-05-23
申请号：US16242099
申请日：2019-01-08
Applicant: China University of Petroleum - Beijing
Inventor： Yiqun Zhang , Ya Liu , Gensheng Li , Zhongwei Huang , Huaizhong Shi , Xianzhi Song , Mao Sheng , Lu Ji
Abstract: An energy-gathered bundle type nesting plugging and wall reinforcing device and an application thereof in karst cave plugging. The energy-gathered bundle type nesting plugging and wall reinforcing device comprises an external slotted metal pipe (1) and an internal nesting blasting tool, wherein the slotted metal pipe (1) has spiral slits (2) or straight slits (3) cut on a pipe wall thereof; the nesting blasting tool is a mandrel (5) having a surface provided with a plurality of explosive grooves (4) in which explosives are placed; the slotted metal pipe (1) is disposed to sleeve the mandrel (5) and fixed, with a movable fit therebetween. The present invention can solve the difficulty that the plugging material cannot easily reside to form a bridge, and effectively improving the plugging success rate.
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公开(公告)号：US10294409B2
公开(公告)日：2019-05-21
申请号：US16155101
申请日：2018-10-09
Applicant: China University of Petroleum (East China) , Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company
Inventor： Guang Zhao , Caili Dai , Haien Yang , Ping Yi , Yuyang Li , Jiaping Tao , Yahui Lv , Xue Yao , Qing You
Abstract: The invention provides a modified graphite particle system for strengthening a polymer/binary/ternary composite oil displacement system. The modified graphite particle system comprises the following components: 1-5 parts by mass fraction dispersed graphite particles, 0.2-0.6 parts by mass fraction dispersant, 0.1-0.5 parts by mass fraction wettability modifier, and deionized water that accounts for the remaining content, based on 100 parts by total mass fraction of the components. In addition, the present invention also provides a preparation and a use of the modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system. The modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system can be used to improve mobility regulation ability and oil displacement efficiency in an injection stage, enhance injection pressure in a follow-up water displacement stage, and increase the oil displacement effect of the composite oil displacement system to the greatest extent.
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Patent Agency Ranking
公开(公告)号：US10287172B2
公开(公告)日：2019-05-14
申请号：US15527969
申请日：2014-11-19
Inventor： Xiaojun Bao , Yuanyuan Yue , Jinbiao Yang , Haiyan Liu , Pei Yuan
Abstract: The present invention provides a preparation method of Beta molecular sieve, comprising: activating a mineral having low silica-to-alumina ratio and a mineral having high silica-to-alumina ratio, respectively, wherein the mineral having low silica-to-alumina ratio is activated via a sub-molten salt medium, and the mineral having high silica-to-alumina ratio is activated via means of high-temperature calcination; mixing the activated minerals with sodium chloride, potassium chloride, water and template agent for hydrothermal crystallization, wherein the charged amounts of the raw materials satisfies a molar ratio of: 0.03-0.18 Na2O: 0.01-0.03 K2O: 0.1-0.4 (TEA)2O: 1 SiO2: 0.01-0.5 Al2O3: 12-40 H2O; cooling the crystallized product and removing the mother liquor by filtration, washing the resulting filter cake with water to neutral and drying it to obtain the Beta molecular sieve.
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公开(公告)号：US20190134590A1
公开(公告)日：2019-05-09
申请号：US16239643
申请日：2019-01-04
Applicant: China University of Petroleum (East China)
Inventor： Chunyi LI , Guowei WANG
CPC classification number: B01J8/28 , B01J8/0055 , B01J8/0065 , B01J8/24 , B01J2208/00991 , C07C4/06 , C07C5/333 , C10G3/00
Abstract: A reaction-regeneration device for catalytic dehydrogenation or/and catalytic cracking of alkanes comprises a reaction device and a regeneration device. The reaction device comprises a reactor and a disengager, and the disengager is located at an upper part of the reactor. The reactor comprises a tapering section, and diameters of cross sections of the tapering section gradually decrease from bottom to top. Secondary conversion of alkenes caused by back-mixing is reduced, and thus the yield and selectivity to alkenes are increased.
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公开(公告)号：US20180365356A1
公开(公告)日：2018-12-20
申请号：US15737008
申请日：2017-09-15
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Wenchun Jiang , Lei Ge , Yucai Zhang , Jianming Gong , Shandong Tu , Xuefang Xie
IPC: G06F17/50
CPC classification number: G06F17/5018 , G06F17/5036 , G06F17/5086 , G06F2217/80
Abstract: A design method for creep-fatigue strength of a plate-fin heat exchanger. The method includes preliminarily designing the plate-fin heat exchanger according to its service requirements, making a primary stress assessment for the plate-fin heat exchanger, calculating the equivalent mechanical and thermophysical parameters of the plate-fin heat exchanger core to satisfy the allowable stress requirement, performing a thermal fatigue analysis for the plate-fin heat exchanger based on these parameters and then calculating the fatigue life and creep life of the plate-fin heat exchanger to accomplish the comprehensive design of the plate-fin heat exchanger in the high-temperature service. The design method provides an effective method for the high temperature design of the plate-fin heat exchanger.
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公开(公告)号：US20180334611A1
公开(公告)日：2018-11-22
申请号：US15668273
申请日：2017-08-03
Applicant: China University of Petroleum(East China) , Research Institute of Petroleum Exploration & Development
Inventor： Caili DAI , Mingwei ZHAO , He Liu , Yining Wu , Guang Zhao , Yongpeng Sun , Xuepeng Wu
IPC: C09K8/68 , C07C233/05 , C07C57/145 , C07C57/13 , C07C57/46 , C07C309/04
CPC classification number: C09K8/68 , C07C57/13 , C07C57/145 , C07C57/46 , C07C233/05 , C07C309/04
Abstract: The present invention relates to the fracturing field, and discloses a water solution, a clean fracturing fluid, and a method for fracturing reservoir. The water solution contains organic acid amidopropyl dimethylamine, an additive, and water, wherein, the additive is at least one of salicylate, cis-butenedioic acid, o-phthalic acid, dodecyl sulfonate, p-toluene sulfonate, and benzoate. The water solution has high carbon dioxide response performance, a clean fracturing fluid that contains the water solution has superior cyclic utilization performance, and the fracturing fluid can solve the problems of conventional fracturing fluids used in fracturing stimulation of oil and gas reservoirs, including incomplete gel breaking, severe damages to the reservoir, and severe contamination of flow-back fluid, etc.
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110.发明申请公开(公告)号：US20180333692A1
公开(公告)日：2018-11-22
申请号：US16047365
申请日：2018-07-27
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Chao Zhang , Zhaomin Li , Peng Wang , Qian Sun , Quanwei Dong
CPC classification number: B01F11/02 , B01F5/0691 , B01F5/10 , B01F5/106 , B01F11/0258 , B01F15/00136 , B01F15/00396 , B01F15/00993 , B01F15/0243 , B01F15/0247 , B01F15/066 , B01F2215/0081 , C09K8/38 , C09K8/473 , C09K8/94 , C09K2208/10
Abstract: An apparatus for preparing compound dispersoids of hydrophobic nanoparticles and surfactants, comprises a water supply pipeline, a compounding mixing pipeline and an aggregating pipeline; the compounding mixing pipeline comprises an ultrasonic dispersion instrument and a liquid storage tank connected in series into a loop, and a second plunger pump allowing unidirectional circulation of materials is arranged between the ultrasonic dispersion instrument and the liquid storage tank; the water supply pipeline is connected to the top of the ultrasonic dispersion instrument; and the aggregating pipeline is connected to a discharge end of the liquid storage tank.
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