申请人 |
SCHLUMBERGER TECHNOLOGY BV;SCHLUMBERGER LOGELCO INC.;PETROLEUM RESEARCH AND DEVELOPMENT N.V.;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER SEACO INC.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER DE PERFILAJES ELECTRONICOS, S.A.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER SERVICES LIMITED;SCHLUMBERGER SURENCO S.A.;WU, ZHIPENG;XIE, CHENG-GANG;KUHN DE CHIZELLE, YAN |
发明人 |
WU, ZHIPENG;XIE, CHENG-GANG;KUHN DE CHIZELLE, YAN |