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1. WO2020117225 - MULTI-PISTON ACTIVATION MECHANISM

Publication Number WO/2020/117225
Publication Date 11.06.2020
International Application No. PCT/US2018/064040
International Filing Date 05.12.2018
IPC
E21B 23/04 2006.01
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 34/06 2006.01
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
06in wells
F15B 15/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08characterised by the construction of the motor unit
14of the straight-cylinder type
CPC
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 34/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
F15B 15/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08Characterised by the construction of the motor unit
14of the straight-cylinder type
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • MAIR, Ryan David
  • REID, Michael Adam
Agents
  • GARDNER, Jason D.
  • BUSSEY, Megan E.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-PISTON ACTIVATION MECHANISM
(FR) MÉCANISME D'ACTIVATION À PISTONS MULTIPLES
Abstract
(EN)
An actuator assembly of a downhole tool may include a high pressure chamber and a low pressure chamber. A pressure applied from the surface to the tool may enter both chambers. The low pressure chamber may include an inlet that restricts the flow of pressure and prevents the pressure within the low pressure chamber from increasing quickly. The high pressure chamber may also include an inlet that restricts the flow of pressure to prevent the pressure within the high pressure chamber from increasing quickly. The inlet of the high pressure chamber may also include a check valve that prevents pressure from bleeding off from the high pressure chamber through the check valve. The pressure within the high pressure chamber may actuate a piston to actuate the tool in response to the pressure applied from the surface falling within a predetermined pressure and time range.
(FR)
La présente invention concerne un ensemble actionneur d'un outil en profondeur de forage qui peut comprendre une chambre à haute pression et une chambre à basse pression. Une pression appliquée à partir de la surface sur l'outil peut entrer dans les deux chambres. La chambre à basse pression peut comprendre une entrée qui limite l'écoulement de pression et empêche la pression à l'intérieur de la chambre à basse pression d'augmenter rapidement. La chambre à haute pression peut également comprendre une entrée qui limite l'écoulement de pression pour empêcher la pression à l'intérieur de la chambre à haute pression d'augmenter rapidement. L'entrée de la chambre à haute pression peut également comprendre une soupape de non-retour qui empêche la pression de sortir de la chambre à haute pression à travers la soupape de non-retour. La pression à l'intérieur de la chambre à haute pression peut actionner un piston pour actionner l'outil en réponse au fait que la pression appliquée à partir de la surface tombe au sein d'une plage de pression et de temps prédéterminée.
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