EP 2565372 B1 20140226 - Apparatus and method for penetrating cement surrounding a tubular
Title (en)
Apparatus and method for penetrating cement surrounding a tubular
Title (de)
Vorrichtung und Verfahren zum Eindringen einer Zementeinfassung eines Rohrs
Title (fr)
Appareil et procédé pour faire pénétrer du ciment autour d'un tuyau
Publication
Application
Priority
EP 11179388 A 20110830
Abstract (en)
[origin: EP2565372A1] Apparatus and method for penetrating cement (300) surrounding a tubular (200) cemented to a formation (400). The apparatus comprises a bore (10) through the tubular wall (200), and an intermediate fluid channel (102) in an insert (100) within the bore. An inner sleeve (120) may be disposed on the interior surface of the tubular wall (200). The inner sleeve (120) is movable between a closed position wherein fluid connection between the interior of the tubular and the bore is prevented, and an open position wherein fluid connection between the interior of the tubular and the bore is allowed. An abrasive and/or etching fluid is supplied through the channel (102) to remove cement and/or the insert (100) or piston assembly.
IPC 8 full level
E21B 43/112 (2006.01)
CPC (source: EP)
E21B 43/112 (2013.01)
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)
EP 2565372 A1 20130306; EP 2565372 B1 20140226; DK 2565372 T3 20140512; PL 2565372 T3 20140829
DOCDB simple family (application)
EP 11179388 A 20110830; DK 11179388 T 20110830; PL 11179388 T 20110830