Zhang Xiqing

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Dongying City, CN

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Patents Applicationslast 30 patents

Information Patent Application
AUTOMATED APPARATUS FOR OIL FIELD DRILLING AND WORKOVER OPERATIONS
- Publication number 20240018833
- Publication date Jan 18, 2024
- SHENGLI OILFIELD SHENGJI PETROLEUM EQUIPMENT CO., LTD.
- Xiqing ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
AUTOMATIC SMALL REPAIR OPERATION SYSTEM FOR OIL FIELD
- Publication number 20240018835
- Publication date Jan 18, 2024
- SHENGLI OILFIELD SHENGJI PETROLEUM EQUIPMENT CO., LTD.
- Xiqing ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
PLUNGER FOR LIFITING FLUIDS WITHIN A TUBING STRING
- Publication number 20160237795
- Publication date Aug 18, 2016
- Shenji Oilfield Shengli Petroleum Equipment Co., Ltd.
- Zhang Xiqing
- E21 - EARTH DRILLING MINING