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Patents Grants
last 30 patents
Information
Patent Grant
Low-density, high-strength degradable temporary pugging agent and t...
Patent number
11,053,427
Issue date
Jul 6, 2021
PetroChina Company Limited
Baoqiang Lv
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
On-line diverting acid for continuous injection into water injectio...
Patent number
10,961,442
Issue date
Mar 30, 2021
PetroChina Company Limited
Lijun Mu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Chelating agent for reservoir acidification and stimulating injecti...
Patent number
10,876,043
Issue date
Dec 29, 2020
PetroChina Company Limited
Lijun Mu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Pressure-reducing and injection-enhancing anti scaling agent for lo...
Patent number
10,800,963
Issue date
Oct 13, 2020
PetroChina Company Limited
Lei Sui
E21 - EARTH DRILLING MINING
Information
Patent Grant
Surfactant that changes the wettability of tight sandstone and its...
Patent number
10,544,353
Issue date
Jan 28, 2020
PetroChina Company Ltd.
Gang Guo
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Intelligent test system and method for multi-segment fractured hori...
Patent number
9,605,531
Issue date
Mar 28, 2017
PetroChina Company Limited
Hong Xin
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
CHELATING AGENT FOR RESERVOIR ACIDIFICATION AND STIMULATING INJECTI...
Publication number
20190330519
Publication date
Oct 31, 2019
Petrochina Company Limited
Lijun MU
E21 - EARTH DRILLING MINING
Information
Patent Application
INJECTION STIMULATION AGENT FOR WATER INJECTION WELL AND THE PREPAR...
Publication number
20190316031
Publication date
Oct 17, 2019
Petrochina Company Limited
Lijun Mu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
On-Line Diverting Acid For Continuous Injection Into Water Injectio...
Publication number
20190276730
Publication date
Sep 12, 2019
Lijun Mu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Diverting Agent For Diversion Acidizing In Water Injection Wells An...
Publication number
20190276731
Publication date
Sep 12, 2019
Lijun Mu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
LOW-DENSITY, HIGH-STRENGTH DEGRADABLE TEMPORARY PUGGING AGENT AND T...
Publication number
20190136116
Publication date
May 9, 2019
Petrochina Company Limited
Baoqiang LV
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SURFACTANT THAT CHANGES THE WETTABILITY OF TIGHT SANDSTONE AND ITS...
Publication number
20190031945
Publication date
Jan 31, 2019
Petrochina Company Limited
Gang Guo
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PRESSURE-REDUCING AND INJECTION-ENHANCING ANTI-SCALING AGENT FOR LO...
Publication number
20180187067
Publication date
Jul 5, 2018
Petrochina Company Limited
Lei SUI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
CHELATING AGENT AND PREPARATION METHOD AND USE THEREOF
Publication number
20180187069
Publication date
Jul 5, 2018
Petrochina Company Limited
Zhiying Deng
C07 - ORGANIC CHEMISTRY
Information
Patent Application
INTELLIGENT TEST SYSTEM AND METHOD FOR MULTI-SEGMENT FRACTURED HORI...
Publication number
20160003031
Publication date
Jan 7, 2016
Petrochina Company Limited
Hong Xin
E21 - EARTH DRILLING MINING