EP 1069244 A3 20020703 - Method and apparatus for monitoring a downhole vibrator
Title (en)
Method and apparatus for monitoring a downhole vibrator
Title (de)
Verfahren und Vorrichtung zur Steuerung eines Tiefenrüttlers
Title (fr)
Méthode et dispositif pour contrôler un vibrateur de fond de trou
Publication
Application
Priority
DE 19930885 A 19990705
Abstract (en)
[origin: EP1069244A2] The method involves using a depth vibrator (11), which is inserted and withdrawn in the ground from an unbalanced mass vibrating about a vertical longitudinal axis. The unbalanced mass is suspended by a pipe screwed to a joint coupling and by a steel cable running in the pipe, which is guided through the pipe. The unbalanced mass is driven with alternating rotation directions, and is varied with time. An Independent claim is included for a depth vibrator for use with the method.
IPC 1-7
IPC 8 full level
E02D 3/054 (2006.01)
CPC (source: EP)
E02D 3/054 (2013.01)
Citation (search report)
- [DXA] DE 2629485 A1 19770120 - KOOTEN BV V
- [DA] DE 2948403 A1 19810604 - FRITZ POLLEMS KG SPEZIALTIEFBA [DE]
- [DA] DE 3205099 A1 19830609 - BILFINGER BERGER BAU [DE]
- [A] DE 19628769 A1 19961212 - BUL SACHSEN GMBH [DE]
- [A] EP 0436954 A1 19910717 - SEIKO KOGYO KABUSHIKI KAISHA [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1069244 A2 20010117; EP 1069244 A3 20020703; EP 1069244 B1 20050928; AT E305537 T1 20051015; DE 19930885 A1 20010201; DE 19930885 C2 20030424
DOCDB simple family (application)
EP 00114397 A 20000705; AT 00114397 T 20000705; DE 19930885 A 19990705