申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;PATEL, DINESH, R.;ROSS, DONALD W.;VENERUSO, ANTHONY F.;CENS, FABIEN F.;LOVELL, JOHN R.;MCKAY, IAN, S. |
发明人 |
PATEL, DINESH, R.;ROSS, DONALD W.;VENERUSO, ANTHONY F.;CENS, FABIEN F.;LOVELL, JOHN R.;MCKAY, IAN, S. |