EP 1812679 A1 20070801 - DEVICE FOR CUTTING A DOWNHOLE OBJECT
Title (en)
DEVICE FOR CUTTING A DOWNHOLE OBJECT
Title (de)
VORRICHTUNG ZUM SCHNEIDEN EINES BOHRLOCKOBJEKTS
Title (fr)
DISPOSITIF POUR DECOUPER UN OBJET SOUTERRAIN
Publication
Application
Priority
- GB 2005004373 W 20051114
- GB 0425117 A 20041113
- US 7011405 A 20050302
- GB 0512994 A 20050625
Abstract (en)
[origin: WO2006051317A1] An improved valve for sealing a wellbore and method of use, in particular for prevention of well blow outs. In one embodiment, the apparatus is designed to seal a well (11) through rotation of rams (15A, 15B). The rams may be actuated to seal the well (11) without having to work against full well pressure as fluid volumes in the apparatus housing (12), which also contains the rams (15A, 15B), are preserved. This functionality allows the apparatus to be constructed with smaller dimensions than existing prior art blow out prevention valves aiding handling and manoeuvrability. The improved valve according to one embodiment also has a mechanism that guides a wireline or a pipe being run in the wellbore to the centre of the bore and allows a seal to be formed around the wireline or pipe.
IPC 8 full level
E21B 29/02 (2006.01); E21B 29/08 (2006.01)
CPC (source: EP GB)
E21B 29/02 (2013.01 - GB); E21B 29/04 (2013.01 - EP GB); E21B 29/08 (2013.01 - GB); E21B 33/061 (2013.01 - EP GB)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006051317 A1 20060518; EP 1812679 A1 20070801; EP 1812680 A1 20070801; EP 1812680 B1 20100113; GB 0709283 D0 20070620; GB 0709293 D0 20070620; GB 2434821 A 20070808; GB 2435375 A 20070822; GB 2435375 B 20090107; GB 2435375 C 20090107; WO 2006051324 A1 20060518
DOCDB simple family (application)
GB 2005004366 W 20051114; EP 05809167 A 20051114; EP 05811288 A 20051114; GB 0709283 A 20070515; GB 0709293 A 20051114; GB 2005004373 W 20051114