Huiyun MA

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Permanent packer and extended gas lift method using permanent packer
- Patent number 11,994,011
- Issue date May 28, 2024
- PetroChina Company Limited
- Weilin Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole throttling device based on wireless control
- Patent number 11,946,349
- Issue date Apr 2, 2024
- PetroChina Company Limited
- Jun Xie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for determining volume stability of well cement
- Patent number 11,112,398
- Issue date Sep 7, 2021
- PetroChina Company Limited
- Fuyun Wang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
PERMANENT PACKER AND EXTENDED GAS LIFT METHOD USING PERMANENT PACKER
- Publication number 20220349282
- Publication date Nov 3, 2022
- Sichuan Shengnuo Oil And Gas Engineering Technology Service Co.Ltd
- Weilin Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE THROTTLING DEVICE BASED ON WIRELESS CONTROL
- Publication number 20220205346
- Publication date Jun 30, 2022
- Petrochina Company Limited
- Jun Xie
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHOD FOR DETERMINING VOLUME STABILITY OF WELL CEMENT
- Publication number 20190302092
- Publication date Oct 3, 2019
- Petrochina Company Limited
- Fuyun WANG
- G01 - MEASURING TESTING