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1. WO2020161227 - IMPROVEMENTS IN OR RELATING TO WELL ABANDONMENT AND SLOT RECOVERY

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Publication Number WO/2020/161227
Publication Date 13.08.2020
International Application No. PCT/EP2020/052969
International Filing Date 06.02.2020
IPC
E21B 23/00 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
23Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
E21B 23/04 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
23Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
04operated by fluid means, e.g. actuated by explosion
E21B 34/00 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
34Valve arrangements for boreholes or wells
CPC
E21B 2200/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
2200Special features related to earth drilling for obtaining oil, gas or water
06Sleeve valves
E21B 23/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
E21B 23/006
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
004Indexing systems for guiding relative movement between telescoping parts of downhole tools
006"J-slot" systems, i.e. lug and slot indexing mechanisms
E21B 23/01
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
01for anchoring the tools or the like
E21B 23/04
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
04operated by fluid means, e.g. actuated by explosion
E21B 23/04115
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
04operated by fluid means, e.g. actuated by explosion
0411specially adapted for anchoring tools or the like to the borehole wall or to well tube
04115using radial pistons
Applicants
  • ARDYNE HOLDINGS LIMITED [GB]/[GB]
Inventors
  • WARDLEY, Michael
  • TELFER, George
Agents
  • CAMPBELL, Arlene
Priority Data
1901716.907.02.2019GB
1917316.028.11.2019GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS IN OR RELATING TO WELL ABANDONMENT AND SLOT RECOVERY
(FR) AMÉLIORATIONS APPORTÉES À L'ABANDON DE PUITS ET À LA DÉVIATION PAR RÉCUPÉRATION DE CRÉNEAUX OU ASSOCIÉES À CEUX-CI
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Abstract
(EN) A resettable mechanism and a method of controlled actuation of a hydraulically operated downhole tool to allow selective operation of the downhole tool in a wellbore. The resettable mechanism provides an inner sleeve member which is longitudinally moveable between a first and second position which opens and closes a fluid pathway to at least one actuation port on the downhole tool. Movement of the inner sleeve member is controlled via an indexing mechanism operated by drop balls. An embodiment of a casing recovery system is described wherein a downhole pulling tool is selectively actuated so as to prevent operation of the pulling tool while a hydraulically operated casing cutter is cutting casing.
(FR) Cette invention concerne un mécanisme réarmable et un procédé d'actionnement contrôlé d'un outil de fond de trou à commande hydraulique pour permettre un actionnement sélectif de l'outil de fond de trou dans un puits de forage. Le mécanisme réarmable fournit un élément de manchon interne qui est mobile longitudinalement entre une première et une seconde position qui ouvrent et ferment un trajet de fluide vers au moins un orifice d'actionnement sur l'outil de fond de trou. Le déplacement de l'élément de manchon interne est contrôlé par l'intermédiaire d'un mécanisme d'indexation actionné par boulets de largage. Plus particulièrement, selon un mode de réalisation, l'invention concerne un système de récupération de tubage mettant en œuvre l'actionnement sélectif d'un outil de traction de fond de trou de façon à empêcher le fonctionnement de l'outil de traction pendant qu'un dispositif de coupe de tubage à commande hydraulique découpe du tubage.
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