Shiwei Niu

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Chengdu, CN

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Patents Applicationslast 30 patents

Information Patent Application
PDC Drill Bit with Swing Self-adaptive Cushion Structure
- Publication number 20240229563
- Publication date Jul 11, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Yingxin YANG
- E21 - EARTH DRILLING MINING
Information Patent Application
TORQUE-ADAPTIVE IMPACT TOOL SUITABLE FOR PDC BIT
- Publication number 20240175323
- Publication date May 30, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Shiwei Niu
- E21 - EARTH DRILLING MINING