申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;O'KEEFE, MICHAEL;GODEFROY, SOPHIE;ZADEH, NASSER, DILMAGHANI |
发明人 |
O'KEEFE, MICHAEL;GODEFROY, SOPHIE;ZADEH, NASSER, DILMAGHANI |