Xianwen Li

Person

Beijing City, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Method for lowering oil pipe in gas well without well-killing, solu...
- Patent number 11,313,192
- Issue date Apr 26, 2022
- PetroChina Company Ltd.
- Xianwen Li
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Injection stimulation agent for water injection well and the prepar...
- Patent number 10,975,294
- Issue date Apr 13, 2021
- PetroChina Company Ltd.
- Lijun Mu
- E21 - EARTH DRILLING MINING
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
Method for in-depth profile control and displacement of low-permeab...
- Patent number 10,920,127
- Issue date Feb 16, 2021
- PetroChina Company Limited
- Tianjiang Wu
- 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...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR LOWERING OIL PIPE IN GAS WELL WITHOUT WELL-KILLING, SOLU...
- Publication number 20200040682
- Publication date Feb 6, 2020
- PetroChina Company Ltd.
- Xianwen Li
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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
METHOD FOR IN-DEPTH PROFILE CONTROL AND DISPLACEMENT OF LOW-PERMEAB...
- Publication number 20190292438
- Publication date Sep 26, 2019
- Petrochina Company Limited
- Tianjiang Wu
- E21 - EARTH DRILLING MINING
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...

Person

Patents Grantslast 30 patents

Method for lowering oil pipe in gas well without well-killing, solu...

Injection stimulation agent for water injection well and the prepar...

On-line diverting acid for continuous injection into water injectio...

Method for in-depth profile control and displacement of low-permeab...

Chelating agent for reservoir acidification and stimulating injecti...

Patents Applicationslast 30 patents

METHOD FOR LOWERING OIL PIPE IN GAS WELL WITHOUT WELL-KILLING, SOLU...

CHELATING AGENT FOR RESERVOIR ACIDIFICATION AND STIMULATING INJECTI...

INJECTION STIMULATION AGENT FOR WATER INJECTION WELL AND THE PREPAR...

METHOD FOR IN-DEPTH PROFILE CONTROL AND DISPLACEMENT OF LOW-PERMEAB...

On-Line Diverting Acid For Continuous Injection Into Water Injectio...

Diverting Agent For Diversion Acidizing In Water Injection Wells An...