WO2004083833-A1 -- GB2334097-A   ;  US4994671-A   SCHLUMBERGER TECH C (SLMB)   SAFINYA K A,  TARVIN J A;  US5892586-A   COMMISSARIAT ENERGIE ATOMIQUE (COMS)   THONY P,  MOLVA E,  FERRAND B;  US5939717-A   SCHLUMBERGER TECHNOLOGY CORP (SLMB)   MULLINS O C;  US6274865-B1   SCHLUMBERGER LTD (SLMB);  SCHLUMBERGER CANADA LTD (SLMB);  SCHLUMBERGER TECHNOLOGY BV (SLMB);  SERVICES PETROL SCHLUMBERGER (SLMB);  SCHLUMBERGER HOLDINGS LTD (SLMB);  SCHLUMBERGER OVERSEAS SA (SLMB);  PRAD RES & DEV BV (PRAD-Non-standard);  SCHLUMBERGER SURENCO SA (SLMB)   MULLINS O C,  SHROER J J;  US6476384-B1   SCHLUMBERGER TECHNOLOGY BV (SLMB);  SERVICES PETROL SCHLUMBERGER (SLMB);  SCHLUMBERGER LTD (SLMB);  SCHLUMBERGER SURENCO SA (SLMB);  PRAD PETROLEUM RES & DEV NV (PRAD-Non-standard);  SCHLUMBERGER CANADA LTD (SLMB);  SCHLUMBERGER OVERSEAS SA (SLMB)   MULLINS O C,  TERABAYASHI T,  KEGASAWA K,  OKUDA I;  EP1604187-B1 -- GB2334097-A   ;  US4994671-A   SCHLUMBERGER TECH C (SLMB)   SAFINYA K A,  TARVIN J A;  US5892586-A   COMMISSARIAT ENERGIE ATOMIQUE (COMS)   THONY P,  MOLVA E,  FERRAND B;  US5939717-A   SCHLUMBERGER TECHNOLOGY CORP (SLMB)   MULLINS O C;  US6274865-B1   SCHLUMBERGER LTD (SLMB);  SCHLUMBERGER CANADA LTD (SLMB);  SCHLUMBERGER TECHNOLOGY BV (SLMB);  SERVICES PETROL SCHLUMBERGER (SLMB);  SCHLUMBERGER HOLDINGS LTD (SLMB);  SCHLUMBERGER OVERSEAS SA (SLMB);  PRAD RES & DEV BV (PRAD-Non-standard);  SCHLUMBERGER SURENCO SA (SLMB)   MULLINS O C,  SHROER J J;  CN1761868-B -- GB2334097-A   ;  US4994671-A   SCHLUMBERGER TECH C (SLMB)   SAFINYA K A,  TARVIN J A;  US5892586-A   COMMISSARIAT ENERGIE ATOMIQUE (COMS)   THONY P,  MOLVA E,  FERRAND B;  US5939717-A   SCHLUMBERGER TECHNOLOGY CORP (SLMB)   MULLINS O C;  US6274865-B1   SCHLUMBERGER LTD (SLMB);  SCHLUMBERGER CANADA LTD (SLMB);  SCHLUMBERGER TECHNOLOGY BV (SLMB);  SERVICES PETROL SCHLUMBERGER (SLMB);  SCHLUMBERGER HOLDINGS LTD (SLMB);  SCHLUMBERGER OVERSEAS SA (SLMB);  PRAD RES & DEV BV (PRAD-Non-standard);  SCHLUMBERGER SURENCO SA (SLMB)   MULLINS O C,  SHROER J J;  WO2003102628-A1