Wanchai Ratanasirigulchia

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Shaped charge loading tube for perforating gun
- Patent number 7,159,657
- Issue date Jan 9, 2007
- Schlumberger Technology Corporation
- Wanchai Ratanasirigulchia
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Shaped Charge Loading Tube for Perforating Gun
- Publication number 20050211467
- Publication date Sep 29, 2005
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Wanchai Ratanasirigulchia
- E21 - EARTH DRILLING MINING