申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LTD |
发明人 |
BENNETT, NICHOLAS;HALDORSEN, JAKOB, BRANDT UTNE;YAMAMOTO, HIROAKI;HIRABAYASHI, NOBUYASU;ENDO, TAKESHI;COATES, RICHARD, TIMOTHY |