Inventor
AARDALSBAKKE OLUKEMI IBIRONKE
US2 patents
Patents
2 patentsUS7128152B2Oct 31, 2006
Method and apparatus to selectively reduce wellbore pressure during pumping operations
SCHLUMBERGER TECHNOLOGY CORP25 citations89
US7128160B2Oct 31, 2006
Method and apparatus to selectively reduce wellbore pressure during pumping operations
SCHLUMBERGER TECHNOLOGY CORP19 citations81