申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
POTAPENKO, DMITRIY IVANOVICH;RAMSEY, LELAND;LESKO, TIMOTHY M.;WILLBERG, DEAN M.;LAFFERTY, THEODORE B.;STILL, JOHN W. |