Huawen SHU

Follow

Person

Dongying, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for tripping oil pipe and system for automatic well workover
- Patent number 9,732,570
- Issue date Aug 15, 2017
- China Petroleum and Chemical Corporation
- Minxuan Wang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for Tripping Oil Pipe and System for Automatic Well Workover
- Publication number 20150197997
- Publication date Jul 16, 2015
- China Petroleum and Chemical Corporation
- Minxuan WANG
- E21 - EARTH DRILLING MINING