EP 2041390 A1 20090401 - MECHANICAL TRIGGER ARRANGEMENT
Title (en)
MECHANICAL TRIGGER ARRANGEMENT
Title (de)
MECHANISCHE BETÄTIGUNGSANORDNUNG
Title (fr)
SYSTÈME DE DÉCLANCHEMENT MÉCANIQUE
Publication
Application
Priority
- NO 2007000266 W 20070709
- NO 20063252 A 20060713
Abstract (en)
[origin: WO2008016308A1] The present invention relates to an arrangement for the repeated mechanical triggering of various types of downhole equipment, the arrangement comprising a spring element (4) and a string section (1 ). The invention is characterized in that the arrangement comprises a rotary sleeve (7), with turning faces (1 ', 1 "; 2', 2") being provided between the string section (1 ) and the rotary sleeve (7), one set of the turning faces (1 ', 1 ") having an equivalent slope and the other set of turning faces (2', 2") having a different slope, the arrangement being configured to force a relative rotary movement between the string section (1 ) and the rotary sleeve (7) as a premise for an axial movement, with the amount of rotary movement of the rotary sleeve (7) depending on the force being applied to the arrangement, the stiffness of spring (4), as well as the slope of the turning faces (1 \ 1 "; 2', 2"), the arrangement being configured to release the energy stored therein when the rotary sleeve (7) has been rotated by an amount causing the abutment face (3") of the rotary sleeve (7) to no longer be axially abutted against the abutment face (3') of an end piece (6), whereupon the rotary sleeve (5) and the string section (1 ) will be displaced relative to the end piece (6) allowing the spring (4) to release its stored energy.
IPC 8 full level
E21B 4/10 (2006.01); E21B 31/107 (2006.01)
CPC (source: EP US)
E21B 31/107 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2008016308 A1 20080207; CA 2657609 A1 20080207; EP 2041390 A1 20090401; EP 2041390 A4 20150610; NO 20063252 L 20080114; NO 325507 B1 20080526; US 2009301745 A1 20091210
DOCDB simple family (application)
NO 2007000266 W 20070709; CA 2657609 A 20070709; EP 07793918 A 20070709; NO 20063252 A 20060713; US 30919707 A 20070709