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31.发明授权公开(公告)号：US10544353B2
公开(公告)日：2020-01-28
申请号：US15956617
申请日：2018-04-18
Applicant: PetroChina Company Limited
Inventor： Gang Guo , Zhongxing Li , Lijun Mu , Zhenfeng Zhao , Kuangsheng Zhang , Xiaojia Xue , Jiang Wu , Kai Li , Huabo Fan , Jin Liu , Xiaoqun Zhou , Cheng Xian
Abstract: A surfactant that changes the wettability of tight sandstone and its preparation method and application. By adding the aqueous phase solution into the oil phase solution, and under the action of the emulsifier, a uniformly dispersed phase is achieved. Then adding initiator, stirring and raising the temperature, reacting the reaction at the temperature to obtain a colorless and transparent liquid, i.e., high polymer. At room temperature, adding fluorocarbon surfactant and biosurfactant and stirring was continued for 4 hours to obtain a surfactant that changes the surface wettability of tight sandstone. The surfactant of the present invention can reduce the oil-water interfacial tension, transform the oil-wet surface into water-wet surface, which reduces the adhesion of oil droplets to rock surface and improves the flowability of crude oil in the original stratum, and improves the recovery of low-permeability reservoir.
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32.发明申请公开(公告)号：US20200018740A1
公开(公告)日：2020-01-16
申请号：US16509348
申请日：2019-07-11
Applicant: PetroChina Company Limited
Inventor： Lianhua Hou , Jinhua Fu , Xia Luo , Xianyang Liu , Lijun Zhang , Shixiang Li , Senhu Lin , Zhi Yang , Qian Zou , Jingwei Cui , Songtao Wu , Jinghong Wang
Abstract: The embodiments of the present disclosure disclose a method, apparatus and system for determining sweet spot region for shale oil in-situ conversion development. The method comprises: determining an output oil and gas potential index according to a Total Organic Carbon (TOC), a Hydrogen Index (HI) and a shale density; determining a heated shale section according to the output oil and gas potential index and corresponding lower limit value of the oil and gas potential index that is determined according to a well arrangement mode and a shale vitrinite reflectance; determining an output quantity according to a thickness and an area of the heated shale section and data of the output oil and gas potential index; determining a Return on Investment (ROI) according to the output quantity and an invested cost; and determining a sweet spot region for shale oil in-situ conversion development by using the ROI.
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公开(公告)号：US20200018145A1
公开(公告)日：2020-01-16
申请号：US16508752
申请日：2019-07-11
Applicant: PetroChina Company Limited
Inventor： Lianhua Hou , Caineng Zou , Suyun Hu , Jinhua Fu , Xianyang Liu , Xia Luo , Jinghong Wang , Lijun Zhang , Senhu Lin , Zhi Yang , Songtao Wu , Jingwei Cui
Abstract: Embodiments of the present disclosure disclose a shale oil in-situ lightening development method, apparatus and system, wherein the method comprises: determining an effective shale interval according to an interval with a total organic carbon greater than a first lower limit value in a target stratum; determining a favorable region for shale oil in-situ lightening development according to a thickness of the effective shale interval and an effective layer thickness ratio, wherein the effective layer thickness ratio includes a ratio of the thickness of the effective shale interval to a thickness of a shale section, and the shale section includes the effective shale intervals and interlayers therebetween. By utilizing the embodiments of the present disclosure, the benefit of the shale oil in-situ lightening development can be improved.
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34.发明申请公开(公告)号：US20190383140A1
公开(公告)日：2019-12-19
申请号：US16255016
申请日：2019-01-23
Applicant: PetroChina Company Limited
Abstract: The present invention provides a method and a device for predicting the change in the water cut rising rate of a water-drive oil reservoir. The method comprises: determining the actual water cut rising rates and water cuts of the oil reservoir, plotting the scatter plot of the actual water cut rising rates and water cuts of the oil reservoir; fitting the scatter plot of the actual water cut rising rates and water cuts of the oil reservoir to a relationship between the water cut rising rate and the water cut, to obtain the initial water cut of the oil reservoir, the degree of recovery of crude oil when the water cut of the oil reservoir is the initial water cut, the ultimate recovery of crude oil when the water cut of the oil reservoir is the water cut limit; and determining the law of change in the water cut rising rate with respect to the degree of recovery and the change in the water cut rising rate in the water-drive oil reservoir. The invention also provides a device for predicting the change in the water cut rising rate of the water-drive oil reservoir. The method and device of the present invention can predict the law of change in the water cut rising rate more correctly by considering the actual oilfield production data.
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公开(公告)号：US20190352320A1
公开(公告)日：2019-11-21
申请号：US16412768
申请日：2019-05-15
Applicant: Petrochina Company Limited
Inventor： Jianhui Luo , Yongge Wei , Bin Ding , Jiangwei Zhang , Pingmei Wang , Jin Zhang , Xiangfei Geng , Zheyu Wei , Baoliang Peng , Lipeng He
IPC: C07F11/00
Abstract: The present disclosure provides a single-side modified β-Anderson-type heteropolymolybdate organic derivative having an anionic moiety with a general formula represented by: β-{[RC(CH2O)3]M(OH)3Mo6O18}3−; β represents a non-planar folded structure; R=substituted or unsubstituted phenyl, CnH2nX (n is an integer from 0 to 22; X=H, OH, NH(CH2)3SO3H, NHCH2COOH, NH2, or NO2); M=Cr3+. The single-side modified β-Anderson-type heteropolymolybdate organic derivative can be prepared under hydrothermal conditions.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20190330519A1
公开(公告)日：2019-10-31
申请号：US16254773
申请日：2019-01-23
Applicant: PetroChina Company Limited
Inventor： Lijun MU , Xianwen LI , Hongjun LU , Yong WANG , Bin YAO , Zhenning JI , Suiwang ZHANG , Xiaobing LU , Zhiying DENG , Lei SUI , Erzhen WANG , Zhaojie SONG
Abstract: The present invention provides a chelating agent for reservoir acidification and stimulating injection and its preparation method and application. The raw material composition of the chelating agent comprises: 10.0%-20.0% of methanesulfonic acid, 10.0%-20.0% of methanol, 10.0%-20.0% of polyaspartic acid, 10.0%-15.0% of epoxy succinic acid, 5.0%-10.0% of sodium cetyl sulfonate, 10.0%-15.0% of cetyltrimethylammonium bromide and the balance of water. The present invention also provides a preparation method of the above chelating agent. The chelating agent for reservoir acidification and stimulating injection of the invention is used in an acidizing and stimulating injection process, wherein it can effectively dissolve rock cracks, be used directly without need to be reversed.
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37.发明申请公开(公告)号：US20190292438A1
公开(公告)日：2019-09-26
申请号：US16251609
申请日：2019-01-18
Applicant: PETROCHINA COMPANY LIMITED
Inventor： Tianjiang Wu , Mingke Zheng , Xianwen Li , Haien Yang , Xiaorong Li , Fan Tang , Fangfang Xue , Ronghuan Chen , Rong Zhang , Lijun Zheng , Chunmei Xu , Baoche Liu , Ping Yi , Jiajie Zhu , Weiyu Bi
IPC: C09K8/588
Abstract: The present invention provides a method for in-depth profile control and displacement of low-permeability oil reservoirs, comprising: sequentially injecting a flexible and elastic particle-containing pre-slug, a polymer microsphere-containing main slug and a flexible and elastic particle-containing protective slug into an oil layer, and the three slugs have a volume ratio of total injection amount of 1-2:6-8:1-2. The invention provides a method for in-depth profile control and displacement by using styrene-based flexible and elastic particles in combination with the polyacrylamide polymer microsphere, wherein the flexible elastic particles can block cracks and large pore channels of the oil layer, and the polymer microsphere can displace the remaining oil in the oil layer. In the present invention, different slugs of profile control and displacement system are combined to achieve the objective of blocking cracks and large pore channels, displacing crude oil, and improving oil well recovery.
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38.发明授权公开(公告)号：US10258965B2
公开(公告)日：2019-04-16
申请号：US14964204
申请日：2015-12-09
Applicant: PetroChina Company Limited
Inventor： Xiaodong Yang , Yanfeng Liu , Sheng Hu , Chunmei Yu , Hongling Chu , Xinmiao Wang , Shanbin Gao , Bin Xie , Famin Sun , Wencheng Zhang , Jintao Guo , Quanguo Zhang , Lili Jiang , Xiaofeng Wang , Yuanyuan Ji , Ran Sun , Yuxiao Feng , Xianjun Wu , Guojia Zhang , Tan Zhao , Wenyong Liu , Rui Li , Ruifeng Li , Cheng Tang
IPC: B01J23/40 , B01J23/44 , B01J37/02 , B01J37/08 , C10G45/52 , B01J35/00 , B01J35/10 , B01J37/28 , B01J37/00
Abstract: The present invention relates to a method for preparing a sulfur-resistant catalyst for aromatics saturated hydrogenation, comprising the steps of: preparing noble metal impregnation solutions from a noble metal and deionized water or an acid solution; impregnating a carrier with the impregnation solutions sequentially from high to low concentrations by incipient impregnation; homogenizing, drying, and calcinating to obtain the sulfur-resistant catalyst for aromatics saturated hydrogenation. The catalyst for aromatics saturated hydrogenation prepared by the method according to the present invention is primarily used in processing low-sulfur and high-aromatics light distillate, middle distillate, atmospheric gas oil, and vacuum gas oil. The method according to the present invention is advantageous in that the catalyst for aromatics saturated hydrogenation exhibits good hydrofining performance, superior aromatics saturation performance, high liquid yield of products, as well as excellent desulfurization and sulfur-resistance, and the catalyst has remarkable effects in use and a great prospect of application.
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39.发明授权公开(公告)号：US10252255B2
公开(公告)日：2019-04-09
申请号：US14964348
申请日：2015-12-09
Applicant: PetroChina Company Limited
Inventor： Xiaodong Yang , Chunmei Yu , Yanfeng Liu , Sheng Hu , Zhihua Zhang , Famin Sun , Wencheng Zhang , Jintao Guo , Wenyong Liu , Xinmiao Wang , Shanbin Gao , Bin Xie , Jinxian Jiang , Yuhe Yang , Rui Li , Guojia Zhang , Lili Jiang , Tan Zhao , Dongqing Wang , Jingying Zhao , Quanguo Zhang , Ruifeng Li , Shengbo Sun , Hong Li , Cheng Tang
Abstract: Disclosed are a method for preparing a noble metal hydrogenation catalyst comprising preparing a carrier from a molecular sieve having a 10-member ring structure and/or an amorphous porous material; preparing a noble metal impregnation solution; and preparing noble metal impregnation solutions in a concentration gradient ranging from 0.05 to 5.0 wt % with deionized water, and sequentially impregnating the carrier with the impregnation solutions from low to high concentrations during the carrier impregnation process, or preparing a noble metal impregnation solution at a low concentration ranging from 0.05 to 0.5 wt % and impregnating the carrier by gradually increasing the concentration of the noble metal impregnation solution to 2.0 to 5.0 wt % in the impregnation process, followed by homogenization, drying, and calcination, as well as a noble metal hydrogenation catalyst, use thereof, and a method for preparing lubricant base oil.
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40.发明申请公开(公告)号：US20190048106A1
公开(公告)日：2019-02-14
申请号：US16161894
申请日：2018-10-16
Applicant: PetroChina Company Limited
Inventor： Mingge Zhang , Dianjun Li , Shuo Wang , Hongming Li , Yuan Yuan , Jianjun Yi , Tianxu Sun , Jing Mao , Lin Men , Qigu Huang , Runcong Zhang , Jing Wang , Yanpei Nie
IPC: C08F4/646 , C08F4/649 , C08F10/02 , C08F10/06 , C08F210/16
Abstract: The present invention relates to an olefin coordination polymerization catalyst and a preparation method and application thereof. The olefin polymerization catalyst consists of a primary catalyst mainly prepared from a magnesium compound, a transition metal halide, a C2-C15 alcohol and an electron donor in a molar ratio of 1:1-40:0.01-10:0.001-10, and a co-catalyst which is an organoaluminum compound; and the molar ratio of the transition metal halide to the co-catalyst is 1:10-500. The catalyst of the present invention has a good particle morphology, and a spherical shape, and the catalyst particles do not stick to the vessel wall; the catalyst has high activity and excellent hydrogen regulation performance, and the melt index MFR of polyethylene may be adjusted within 0.01 g/10 min-550 g/10 min; and the catalyst is applicable in slurry polymerization process, loop reactor polymerization process, gas phase polymerization process or combined polymerization process.
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