EP 3721047 B1 20231227 - A DEVICE FOR FORMING A BARRIER IN AN ANNULUS OF A WELL
Title (en)
A DEVICE FOR FORMING A BARRIER IN AN ANNULUS OF A WELL
Title (de)
VORRICHTUNG ZUR FORMUNG EINER BARRIERE IN EINEM RINGRAUM EINES BOHRLOCHS
Title (fr)
DISPOSITIF POUR FORMER UNE BARRIÈRE DANS UN ANNEAU D'UN PUITS
Publication
Application
Priority
- NO 20171955 A 20171207
- NO 2018050297 W 20181129
Abstract (en)
[origin: WO2019112438A1] A device (1) for forming a barrier in an annulus (5) of a well (11). The device comprises an injection tool (20) adapted to introduce a polymeric hardening liquid in through an opening in the annulus (5), and a pump unit (26) adapted to provide pressure to said liquid so that the liquid is introduced into the opening in the annulus with a controllable pressure. The device comprises a control unit (30) adapted to control the pump unit (26) so that said liquid is provided into the opening with an initial pressure at a start-up phase of introducing the liquid into the opening and a final pressure at a close-down phase of introducing the liquid into the opening, wherein the final pressure is higher than the initial pressure.
IPC 8 full level
E21B 33/13 (2006.01); E21B 23/04 (2006.01); E21B 33/138 (2006.01)
CPC (source: EP NO US)
E21B 23/0419 (2020.05 - EP); E21B 27/02 (2013.01 - EP US); E21B 33/12 (2013.01 - NO); E21B 33/13 (2013.01 - EP NO); E21B 33/138 (2013.01 - EP NO US); E21B 33/14 (2013.01 - NO US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019112438 A1 20190613; DK 3721047 T3 20240318; EP 3721047 A1 20201014; EP 3721047 A4 20210707; EP 3721047 B1 20231227; NO 20171955 A1 20190610; NO 344114 B1 20190909; US 2021172283 A1 20210610
DOCDB simple family (application)
NO 2018050297 W 20181129; DK 18885475 T 20181129; EP 18885475 A 20181129; NO 20171955 A 20171207; US 201816769724 A 20181129