(19)

(11)

EP 1 194 792 A1

(12)

(43) Date of publication: 10.04.2002 Bulletin 2002/15 (21) Application number: 00938033.8 (22) Date of filing: 02.06.2000

(51) International Patent Classification (IPC)7: G01V 3/30, E21B 47/01 (86) International application number: PCT/US0015/118 (87) International publication number: WO 0104/662 (18.01.2001 Gazette 2001/03)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 09.07.1999 US 143065 P 20.07.1999 US 144710 P (71) Applicant: Honeywell International Inc. Morristown, NJ 07962-9806 (US)	(72) Inventors: FRASER, Edward, C. Cupertino, CA 95014 (US) MORE, Henry Los Altos, CA 94024-5601 (US) (74) Representative: Hucker, Charlotte Jane  Gill Jennings & EveryBroadgate House,7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)