申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;CHEN, KUO-CHIANG;DESTREMAU, AXEL M.;LARSON, ERIC;EL-KHAZINDAR, YASSER |
发明人 |
CHEN, KUO-CHIANG;DESTREMAU, AXEL M.;LARSON, ERIC;EL-KHAZINDAR, YASSER |