申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
KAMIYA, AKIRA;VANNUFFELEN, STEPHANE;KADER, KAMAL;CHEN, HUA;MATSUMOTA, HISATOSHI |