479 patents
Page 14 of 24
Utility
Tool for opening sliding sleeve
15 Feb 22
A sliding sleeve opening tool includes an engaging element, a ball seat and a guiding head connected in sequence, as disclosed herein.
Zhenwei Gan, Bin Qi, Zhimin Hou, Shunqu Hu, Wei Zhao, Zhi Xie, Qiang Wang, Tao Liu, Jian Pan, Wenfeng Pang
Filed: 13 Jan 17
Utility
Phenol Derivative, and Preparation Process and Use Thereof
10 Feb 22
Xiaowei CHEN, Kecheng WEI, Yuxiang LIANG
Filed: 16 Oct 19
Utility
Composite catalyst and preparation method therefor
8 Feb 22
Disclosed is a composite catalyst, comprising carbon in a continuous phase and Raney alloy particles in a dispersed phase.
Wei Dai, Shuliang Lu, Haibin Jiang, Guoqing Wang, Xiaohong Zhang, Hui Peng, Jinliang Qiao
Filed: 20 Apr 20
Utility
Method and System for Removing Carbon Dioxide from Reaction Gas, and Use Thereof
3 Feb 22
The present invention discloses a method for removing carbon dioxide from a reaction gas.
Xiangyun Wang, Haitao Li, Ye Zhang, Li Xu, Yunsheng Zhao, Xiaolian Wu, Pinhua Yu
Filed: 22 Sep 21
Utility
Anionic-cationic-nonionic Surfactant, Production and Use Thereof
3 Feb 22
Yingcheng LI, Songyuan GU, Weidong ZHANG, Xinning BAO, Ou SHA, Zhiqin SHEN, Yiqing YANG, Xiaodong ZHAI
Filed: 15 Oct 21
Utility
Device for jet packing and fracturing and tubular column comprising same
1 Feb 22
A device for perforating, packing, and fracturing and a tubing string comprising the device are disclosed, wherein the device comprises an upper connector, a nozzle sleeve, a mandrel, a packer, a lower connector, a first inner sleeve provided inside the upper connector, and a second inner sleeve provided inside the nozzle sleeve, further wherein the upper connector is provided with a fracturing hole, and a nozzle is provided at the nozzle sleeve.
Zhenwei Gan, Bin Qi, Zhimin Hou, Shunqu Hu, Wei Lei, Chen Chen, Zhi Xie, Qiang Wang, Wei Zhao, Yijun Zhou
Filed: 13 Jan 17
Utility
Acrylamide Copolymer and Preparation Method Therefor and Use Thereof
27 Jan 22
Fangyuan ZHAO, Zhuo YI, Xiaochun WANG, Jie YANG
Filed: 17 Dec 19
Utility
Carbon-coated transition metal nanocomposite material, preparation and application thereof
18 Jan 22
A carbon-coated transition metal nanocomposite material includes carbon-coated transition metal particles having a core-shell structure.
Junfeng Rong, Genghuang Wu, Jingxin Xie, Mingsheng Zong, Weiguo Lin, Peng Yu, Hongbo Ji
Filed: 27 Jul 18
Utility
Method for controlling a drilling system
18 Jan 22
A drilling system that includes a mud pump disposed on an earth surface and a drill string with a bottom hole assembly (BHA) in a borehole.
Jun Han, Sheng Zhan, Fengtao Hu, Jinhai Zhao
Filed: 11 Jul 20
Utility
Method for controlling MWD tool in bottom hole assembly
18 Jan 22
A method for controlling a MWD tool in a bottom hole assembly in a borehole includes the steps of installing a plurality of firmware in the MWD tool, turning a mud pump on an earth surface ON or OFF according to a pre-determined sequence; determining a mud flow in the borehole to be ON or OFF so as to form a binary signal; and sending the binary signal to the MWD tool.
Jun Han, Sheng Zhan, Fengtao Hu, Jinhai Zhao
Filed: 11 Jul 20
Utility
Porous Composite Material Capable of Generating Electric Arc in Microwave Field, Preparation Method therefor, and Use thereof
13 Jan 22
A porous composite material capable of generating an arc in a microwave field includes an inorganic porous framework and a carbon material loaded on the inorganic porous framework.
Haibin JIANG, Jinliang QIAO, Xiaohong ZHANG, Wenlu LIU, Zhihai SONG, Guicun QI, Jianming GAO, Chuanlun CAI, Binghai LI, Xiang WANG, Jinmei LAI, Yue RU, Hongbin ZHANG, Peng HAN, Wenqing HUANG, Jiangru ZHANG, Yating ZHAO, Chao JIANG, Shuqi SUN, Zhaoyan GUO, Song CHEN
Filed: 27 Sep 19
Utility
Continuous Operation Method for Microwave High-Temperature Pyrolysis of Solid Material Comprising Organic Matter
13 Jan 22
A continuous operation method is employed for the microwave high-temperature pyrolysis of a solid material containing an organic matter.
Haibin JIANG, Jinliang QIAO, Xiaohong ZHANG, Wenlu LIU, Jianming GAO, Guicun QI, Zhihai SONG, Jinmei LAI, Chuanlun CAI, Binghai LI, Xiang WANG, Yue RU, Hongbin ZHANG, Peng HAN, Jiangru ZHANG, Chao JIANG, Zhaoyan GUO
Filed: 27 Sep 19
Utility
Aluminophosphate molecular sieve SCM-18, its preparation and application thereof
6 Jan 22
An aluminophosphate molecular sieve SCM-18 has a schematic chemical composition, expressed on a molar basis, of Al2O3.n P2O5, in which wherein n represents a phosphorus to aluminum molar ratio, and is in a range of about 0.8-1.2.
Weimin YANG, Zhiqing YUAN, Jiawei TENG, Wenhua FU, Songlin LIU
Filed: 19 Sep 19
Utility
Silicoaluminophosphate molecular sieve, its preparation and application thereof
6 Jan 22
A novel silicoaluminophosphate molecular sieve has a schematic chemical composition, expressed on a molar basis, of mSiO2.Al2O3.nP2O5, in which m represents the molar ratio of SiO2 to Al2O3 and is in a range of about 0.005-0.15, and n represents the molar ratio of P2O5 to Al2O3 and is in a range of about 0.7-1.1.
Weimin YANG, Zhiqing YUAN, Jiawei TENG, Wenhua FU, Songlin LIU
Filed: 19 Sep 19
Utility
Method of flue gas denitrification
4 Jan 22
A method for flue gas denotation includes the step of, in the presence of ammonia, enabling flue gas in a denitration reactor to pass through a plurality of catalyst beds from the bottom to the top to participate in a denitration reaction.
Xin Li, Shuhe Liu, Tianzhu Han, Mingxing Wang
Filed: 31 Aug 17
Utility
Heat transfer tube and cracking furnace using the same
4 Jan 22
A heat transfer tube includes a twisted baffle arranged in an inner wall of the tube.
Guoqing Wang, Lijun Zhang, Xianfeng Zhou, Junjie Liu, Zhiguo Du, Yonggang Zhang, Zhaobin Zhang, Cong Zhou
Filed: 26 Dec 18
Utility
Computer-implemented Method and System for Removing Low Frequency and Low Wavenumber Noises to Generate an Enhanced Image
30 Dec 21
A method and a system for implementing the method are disclosed wherein the source wavelet, input parameter models, and seismic input data may be obtained from a non-flat surface, sometimes mild, or foothill topography as well as the shot and receiver lines might not necessarily be straight, and often curve to avoid obstacles on the land surface.
Yongzhong Wang
Filed: 30 Jun 20
Utility
Computer-implemented Method for High Speed Multi-source Loading and Retrieval of Wavefields Employing Finite Difference Models
30 Dec 21
A method for efficiently injecting sources and retrieving receiver wavefields using finite difference models for wavefield simulations on a GPU, when the source and receiver are not on numerical grid points, and therefore arbitrarily located.
Changhua Zhang
Filed: 30 Jun 20
Utility
Alumina supporter material and preparation method thereof, hydrogenation catalyst and residual oil hydrogenation processing
28 Dec 21
The supporter material for catalyst includes a main body alumina and a rod-shaped alumina.
Honghai Ji, Huicheng Zhang, Fengxiang Ling, Shaojun Wang, Zhiqi Shen, Weiya Yang, Lihua Wang
Filed: 26 Oct 18
Utility
Liquid-solid Radial Moving Bed Reaction Device and Solid Acid Alkylation Method
23 Dec 21
Lifeng HU, Shuandi HOU, Junyi MAO, Zhenxing ZHU, Xiaojin TANG, Zheng LIU, Yongxiang LI, Zhihai ZHAO
Filed: 29 Oct 19