EP 0584998 B1 19961120 - Method and device for detecting pressure pulses
Title (en)
Method and device for detecting pressure pulses
Title (de)
Verfahren und Einrichtung zum Erfassen von Druckstössen
Title (fr)
Procédé et appareil pour détecter des impulsions de pression
Publication
Application
Priority
- GB 9217069 A 19920812
- US 96064292 A 19921014
Abstract (en)
[origin: EP0584998A2] A method of detecting mud pulses in a flowing stream of mud comprises monitoring the pressure change as the pulse-containing stream passes between two regions of the conduit of different cross-sectional area. A device for use in such a method comprises a body (12) defining a through bore for passing drilling mud therethrough, first and second regions in the bore, the second region having a greater cross-sectional area than the first, and means (18) for sensing the difference in pressure between the mud in the first and second regions. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 47/18 (2012.01)
CPC (source: EP)
E21B 47/18 (2013.01)
Designated contracting state (EPC)
DK FR GB NL
DOCDB simple family (publication)
EP 0584998 A2 19940302; EP 0584998 A3 19950301; EP 0584998 B1 19961120; DK 0584998 T3 19961209; NO 932861 D0 19930811; NO 932861 L 19940214
DOCDB simple family (application)
EP 93306313 A 19930810; DK 93306313 T 19930810; NO 932861 A 19930811