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Patents Grants
last 30 patents
Information
Patent Grant
Energy-gathered bundle type nesting plugging and wall reinforcing d...
Patent number
10,822,913
Issue date
Nov 3, 2020
China University of Petroleum—Beijing
Yiqun Zhang
F42 - AMMUNITION BLASTING
Information
Patent Grant
Auxiliary feeding device for flexible pipe of radial horizontal well
Patent number
10,787,886
Issue date
Sep 29, 2020
China University of Petroleum—Beijing
Zhongwei Huang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrothermal geothermal development method of multilateral well clo...
Patent number
10,401,056
Issue date
Sep 3, 2019
China University of Petroleum—Beijing
Xianzhi Song
E21 - EARTH DRILLING MINING
Information
Patent Grant
Impulse-type underground supercharged jet drilling method and device
Patent number
9,115,541
Issue date
Aug 25, 2015
China University of Petroleum-Beijing (CUPB)
Gensheng Li
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
AUXILIARY FEEDING DEVICE FOR FLEXIBLE PIPE OF RADIAL HORIZONTAL WELL
Publication number
20190264544
Publication date
Aug 29, 2019
CHINA UNIVERSITY OF PETROLEUM-BEIJING
Zhongwei HUANG
E21 - EARTH DRILLING MINING
Information
Patent Application
ENERGY-GATHERED BUNDLE TYPE NESTING PLUGGING AND WALL REINFORCING D...
Publication number
20190153809
Publication date
May 23, 2019
China University of Petroleum-Beijing
Yiqun Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDROTHERMAL GEOTHERMAL DEVELOPMENT METHOD OF MULTILATERAL WELL CLO...
Publication number
20180283735
Publication date
Oct 4, 2018
CHINA UNIVERSITY OF PETROLEUM-BEIJING
Xianzhi SONG
F24 - HEATING RANGES VENTILATING
Information
Patent Application
IMPULSE-TYPE UNDERGROUND SUPERCHARGED JET DRILLING METHOD AND DEVICE
Publication number
20130199849
Publication date
Aug 8, 2013
College of Petroleum Engineering, China University of Petroleum-Beijing (CUPB)
Gensheng LI
E21 - EARTH DRILLING MINING