申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SAENGER, RICHARD;ROSCOE, BRADLEY, A.;ZHOU, ZILU;STOLLER, CHRISTIAN |
发明人 |
SAENGER, RICHARD;ROSCOE, BRADLEY, A.;ZHOU, ZILU;STOLLER, CHRISTIAN |