EP 4248059 A1 20230927 - SINGLE TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT
Title (en)
SINGLE TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT
Title (de)
REPARATURVERFAHREN FÜR EINE RINGFÖRMIGE EINZELAUSLÖSERDICHTUNG UND ZUGEHÖRIGE AUSRÜSTUNG
Title (fr)
PROCÉDÉ DE RÉPARATION DE JOINT ANNULAIRE EN UNE SEULE FOIS ET ÉQUIPEMENT ASSOCIÉ
Publication
Application
Priority
- GB 202018390 A 20201123
- GB 202111408 A 20210806
- GB 2021053017 W 20211122
Abstract (en)
[origin: WO2022106848A1] A single trip method of repairing a leaking annular seal located within an annulus that encircles an oil/gas wellbore tubular body, examples of such seals including annular packers or cement seals. The method comprises providing deflector within a wellbore tubular body adjacent to one or more openings in the wall of the tubular body. Alloy beads are then deployed downhole via the tubular body so that the alloy beads are deflected via said openings into the annulus where they accumulate on top of the annular seal. The alloy is then heated to form an alloy plug above the annular seal. The present invention also provides an annular seal repair tool assembly for use in the repair method of the present invention.
IPC 8 full level
E21B 33/13 (2006.01); E21B 29/02 (2006.01)
CPC (source: EP US)
E21B 29/02 (2013.01 - US); E21B 31/08 (2020.05 - US); E21B 33/13 (2013.01 - EP US); E21B 36/008 (2013.01 - US); E21B 29/00 (2013.01 - 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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022106848 A1 20220527; AU 2021382394 A1 20230629; EP 4248059 A1 20230927; US 2023417121 A1 20231228
DOCDB simple family (application)
GB 2021053017 W 20211122; AU 2021382394 A 20211122; EP 21815638 A 20211122; US 202118038204 A 20211122