申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SUAREZ-RIVERA, ROBERTO;HANDWERGER, DAVID A.;SODERGREN, TIMOTHY L. |
发明人 |
SUAREZ-RIVERA, ROBERTO;HANDWERGER, DAVID A.;SODERGREN, TIMOTHY L. |