Shusheng Li

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Beijing, CN

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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...

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
LIQUEFIED POLYMER FRACTURING FLUID THICKENER AND PREPARATION METHOD...
- Publication number 20140336088
- Publication date Nov 13, 2014
- Yan Zheng
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FLOW CONTROL SCREEN FOR USE IN OILFIELD EXPLOITATION
- Publication number 20120175104
- Publication date Jul 12, 2012
- BEIJING HINEN-HITECH PETROLEUM TECHNOLOGY CO., LTD
- Bailin Pei
- E21 - EARTH DRILLING MINING