申请人 |
SOFITECH N.V.;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;HUGHES, TREVOR;JONES, TIMOTHY, GARETH, JOHN;TUSTIN, GARY, JOHN;ZHOU, JIAN |
发明人 |
HUGHES, TREVOR;JONES, TIMOTHY, GARETH, JOHN;TUSTIN, GARY, JOHN;ZHOU, JIAN |