EP 0999347 A1 20000510 - Acoustic impulse gun
Title (en)
Acoustic impulse gun
Title (de)
Akkustische Impulsvorrichtung
Title (fr)
Dispositif acoustique d'impulsions
Publication
Application
Priority
US 18479498 A 19981102
Abstract (en)
An acoustic impulse gun (10) and associated methods of transmitting signals to equipment positioned in a subterranean well permits the signals to be transmitted in a safe, economical, convenient and efficient manner. The acoustic impulse gun (10) includes an accumulator (12), which is momentarily placed in fluid communication with the well when fluid pressure is applied to a device (20) interconnected between the accumulator (12) and the well. The device (20) includes a shuttle (32) which displaces relative to an inlet port (16) in fluid communication with the accumulator (12), and a discharge port (18) in fluid communication with the well. Fluid pressure is applied to the device (20) in a pattern by a signal control system, thereby causing the shuttle (32) to successively and rapidly permit fluid pressure pulses to be applied to the well. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 47/18 (2006.01)
CPC (source: EP)
E21B 47/24 (2020.05)
Citation (search report)
- [XY] WO 9845731 A1 19981015 - CARSTENSEN KENNETH J [US]
- [XY] US 4596293 A 19860624 - WALLUSSEK HEINZ [DE], et al
Designated contracting state (EPC)
DE FR GB IE NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99308253 A 19991020; AU 5602299 A 19991022