DOWNHOLE LOW RATE LINEAR REPEATER RELAY NETWORK TIMING SYSTEM AND METHOD - Patent 3114317

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(11)

EP 3 114 317 A1

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(43)	Date of publication:
	11.01.2017 Bulletin 2017/02

(21)	Application number: 14884471.5

(22)	Date of filing: 06.03.2014

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International Patent Classification (IPC):

E21B 47/12^(2012.01)

(86)	International application number:
	PCT/US2014/021356

(87)	International publication number:
	WO 2015/134030 (11.09.2015 Gazette 2015/36)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(71)	Applicants:
	Xact Downhole Telemetry, Inc. Calgary, Alberta T2E 6Y4 (CA) Van Zelm, John-Peter Calgary, AB T2L 1Z4 (CA)

(72)	Inventor:
	VAN ZELM, John-Peter Calgary, AB T2L 1Z4 (CA)

(74)	Representative: Williams Powell
	11 Staple Inn London WC1V 7QH London WC1V 7QH (GB)

(54)	DOWNHOLE LOW RATE LINEAR REPEATER RELAY NETWORK TIMING SYSTEM AND METHOD