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111.发明授权公开(公告)号：US10119065B2
公开(公告)日：2018-11-06
申请号：US15668900
申请日：2017-08-04
Inventor： Qing You , Caili Dai , Yan Zhang , Mingwei Zhao , Yining Wu , Guang Zhao , Yongpeng Sun , Huan Wang , Yifei Liu , Jichao Fang
IPC: C09K8/68 , C07D207/325 , C09K8/86
Abstract: The present invention relates to the field of oilfield chemistry, and discloses a composition for fracturing and displacement and a method for fracturing and displacement of a tight oil reservoir. The composition contains a pyrrolic compound represented by formula (1) and a laurate; in the formula (1), M− is halide ion, R1 is C1-C5 linear or branched alkyl, and R2 is C15-C20 linear or branched alkyl. The composition for fracturing and displacement provided in the present invention has functions of fracturing, solid carrying, imbibition, drainage and oil displacement, so as to maximize the recovery efficiency of tight oil, and attain economic and social benefits by implementing multiple functions with a single composition, saving resources, and reducing cost.
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公开(公告)号：US20180312768A1
公开(公告)日：2018-11-01
申请号：US15881532
申请日：2018-01-26
Applicant: China University of Petroleum-Beijing
Inventor： Yu FAN , Shihua WANG
Abstract: A method for processing an inferior gasoline and a system for processing the same. In the method, 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 alkylated 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 an 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 alkylated 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：US20180280909A1
公开(公告)日：2018-10-04
申请号：US15887399
申请日：2018-02-02
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：US10081604B1
公开(公告)日：2018-09-25
申请号：US15716207
申请日：2017-09-26
IPC: E21B33/13 , E21B43/22 , C07D233/14 , C07D233/20 , C09K8/594 , E21B43/16 , G01N21/35 , G01R33/46
CPC classification number: C07D233/14 , C07D233/20 , C09K8/506 , C09K8/594 , E21B43/164 , G01N2021/3595 , G01R33/46
Abstract: An imidazoline compound, a mobility control system, a plugging agent for gas channelling, and a method for carbon dioxide flooding. The structure of the imidazoline compound is represented by formula (1), in which R is pentadecyl, heptadecenyl, or heptadecyl. A mobility control system that contains the imidazoline compound can interact with carbon dioxide to form a plugging agent for gas channelling, and thereby attains a plugging effect for carbon dioxide channelling in a carbon dioxide flooding process.
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115.发明授权公开(公告)号：US10006845B2
公开(公告)日：2018-06-26
申请号：US14917857
申请日：2015-05-07
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Zhaomin Li , Chao Zhang , Binfei Li , Songyan Li , Jiquan Liu , Quanwei Dong
Abstract: A device for evaluating the foaming property of a gas-soluble surfactant, which comprises a gas source part, an evaluating kettle, a liquid part, and an intermediate container part. The rotation of the evaluating kettle, the gas-soluble surfactant and the supercritical carbon dioxide can be sufficiently and evenly mixed with each other when the solubility of the gas-soluble surfactant in the supercritical carbon dioxide is measured.
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Patent Agency Ranking
公开(公告)号：US09963350B2
公开(公告)日：2018-05-08
申请号：US14648425
申请日：2013-11-28
Inventor： Xiaojun Bao , Yuanyuan Yue , Tiesen Li , Haiyan Liu , Shengbao He , Jianning Yu
CPC classification number: C01B39/40 , B01J20/18 , B01J29/40 , B01J35/002 , C01B39/38
Abstract: The present invention pertains to the field of molecular sieve synthesis, and relates to a synthesis method of ZSM-5 type molecular sieves. In this method, natural minerals, i.e., natural kaolin and natural diatomite, are used as the total silicon source and aluminum source required for the molecular sieve synthesis, and these two natural minerals are calcinated and subjected to acidic (alkaline) treatment before they are mixed at a certain ratio, and then crystallized under hydrothermal conditions to obtain the product, a ZSM-5 type molecular sieve. The ZSM-5 type molecular sieve obtained by the method according to the present invention is a hierarchical porous material having a crystallinity of 70% to 120% as compared to conventional ZSM-5 type molecular sieves synthesized by using pure chemical reagents, and the silica-to-alumina ratio in the molecular sieve product may be adjusted by varying the ratio of the two minerals in the raw materials for the synthesis. According to the present invention, the range of raw materials for the preparation of molecular sieve materials is broadened, and therefore not only the cost for the molecular sieve production is greatly reduced but also the greenness in the production process of the molecular sieve material is significantly improved.
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公开(公告)号：US09845249B2
公开(公告)日：2017-12-19
申请号：US14902423
申请日：2013-12-02
Applicant: China University of Petroleum-Beijing
Inventor： Haiyan Liu , Xinyan Sun , Xiaojun Bao , Gang Shi
IPC: C01B39/26
CPC classification number: C01B39/265 , C01B39/26
Abstract: The present invention provides a method for preparing a mordenite, which is a method for preparing the mordenite through a hydrothermal crystallization by using natural aluminosilicate minerals as total silicon sources and total aluminum sources, comprising the steps of: subjecting the natural aluminosilicate minerals to activation treatment which is an activation by sub-molten salt and an activation by thermal treatment; selecting and mixing the activated natural aluminosilicate minerals according to the silicon-to-aluminum ratio of the targeted mordenite, adding thereto deionized water, sodium hydroxide, crystal seed, a templating agent to obtain a reaction mixture; adjusting the reaction mixture by using an inorganic acid to have a pH of 10-13, and then aging it at 40-80° C. for 6-24 hours; and subjecting the aged reaction mixture to hydrothermal crystallization, and then filtering, washing, drying and calcinating the crystallized product to obtain the mordenite. The method for preparing a mordenite provided in the present invention enlarges the sources of raw materials for a molecular sieve, has a low cost and a simple process route, and can largely reduce the cost for synthesizing a molecular sieve.
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公开(公告)号：US09790417B1
公开(公告)日：2017-10-17
申请号：US15489193
申请日：2017-04-17
Applicant: CHINA UNIVERSITY OF PETROLEUM (BEIJING)
Inventor： Guancheng Jiang , Yinbo He , Fan Liu , Lili Yang , Xianmin Zhang , Deli Gao , Xianzhu Wu , Guangchang Ma , Gang Qu , Li Zhao , Haifang Sun , Wei Ou'yang , Junbin Chen , Jienian Yan , Liexiang Han , Chunyao Peng
CPC classification number: C09K8/12 , C09K8/035 , C09K2208/10 , C09K2208/12
Abstract: The present invention relates to the well drilling field in petrochemical industry, and discloses a high-density water-based drilling fluid suitable for horizontal shale gas wells comprising a nano-plugging agent, a bionic wall bracing agent, a bionic shale inhibitor, a filler, an emulsifier, and an amphiphobic wettability reversal agent, wherein, the nano-plugging agent is modified silicon dioxide nano-particle, and its modifying group includes a modifying copolymer chain; the bionic wall bracing agent is carboxymethyl chitosan with a dopamine-derived group grafted on its main chain; the bionic shale inhibitor is composed of structural units of arginine and structural units of lysine; the filler consists of calcium carbonate of 1,600-2,500 mesh, calcium carbonate of 1,050-1,500 mesh, and calcium carbonate of 500-1,000 mesh at a weight ratio of 1:0.55-6:0.55-6; and the amphiphobic wettability reversal agent is a dual-cation fluorocarbon surfactant. The drilling fluid provided herein is suitable for use in shale gas mining.
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公开(公告)号：US09745501B1
公开(公告)日：2017-08-29
申请号：US15466032
申请日：2017-03-22
Applicant: CHINA UNIVERSITY OF PETROLEUM (BEIJING)
Inventor： Guancheng Jiang , Shuanglei Peng , Yinbo He , Zhengqiang Deng , Lili Yang , Fan Liu , Deli Gao , Xinliang Li , Yawei Shi , Kai Wang , Chunlei Wang , Guangchang Ma , Li Zhao , Gang Qu
CPC classification number: C09K8/32 , C08F293/005 , C09K8/035 , C09K2208/34
Abstract: The present invention relates to the well drilling field in petroleum industry, in particular to an additive composition suitable for viscosity reduction of oil-based drilling fluids, an oil-based drilling fluid and use thereof. The double-block copolymer mainly consists of a block A and a block B, wherein, the block A is composed of structural units represented by formula (1), the block B is composed of structural units represented by formula (2), and the number-average molecular weight of the block A is 1,500-10,000. The double-block copolymer provided in the present invention can be used as a viscosity reducer in oil-based drilling fluids, especially can be used as a viscosity reducer in high-density clay-free oil-based drilling fluids, and can greatly decrease the apparent viscosity and plastic viscosity of oil-based drilling fluids in high-temperature and high-pressure reservoir while maintaining appropriate shearing force, so as to increase the drilling rate and reduce drilling difficulties.
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公开(公告)号：US09725658B2
公开(公告)日：2017-08-08
申请号：US14296387
申请日：2014-06-04
Inventor： Gang Wang , Jinsen Gao , Chunming Xu , Baojian Shen , Hongliang Wang
CPC classification number: C10G11/18 , C10G11/02 , C10G11/04 , C10G2300/107 , C10G2300/1077 , C10G2400/02 , C10G2400/04 , C10G2400/30
Abstract: The present invention provides a method for processing low-grade heavy oil, comprising: providing a riser-bed reactor; preheating the low-grade heavy oil and injecting it into the riser reactor to react with solid catalyst particles at the temperature of 550-610° C.; oil-gas, after reacting with the solid catalyst particles in the riser reactor, being introduced into the fluidized bed reactor to continue to react at temperature of 440-520° C. and weight hourly space velocity of 0.5-5 h−1; and the oil-gas, after reacting in the fluidized bed reactor, being separated from coked solid catalyst particles carried therein, and the separated oil-gas being introduced into a fractionation system. The method can effectively remove carbon residues, heavy metals, asphaltenes and other impurities from the low-grade heavy oil, and obtain high liquid product yield in a simple process.
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