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1. WO2012060713 - DEVICE TO OPERATE DOWNHOLE EQUIPMENT

Publication Number WO/2012/060713
Publication Date 10.05.2012
International Application No. PCT/NO2011/000301
International Filing Date 21.10.2011
Chapter 2 Demand Filed 20.08.2012
IPC
E21B 47/18 2012.01
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
47Survey of boreholes or wells
12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
14using acoustic waves
18through the well fluid
E21B 47/12 2012.01
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
47Survey of boreholes or wells
12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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
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 34/063
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
063Valve or closure with destructible element, e.g. frangible disc
E21B 47/18
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
14using acoustic waves
18through the well fluid ; , e.g. mud pressure pulse telemetry
Applicants
  • TCO AS [NO]/[NO] (AllExceptUS)
  • BRANDSDAL, Viggo [NO]/[NO] (UsOnly)
Inventors
  • BRANDSDAL, Viggo
Agents
  • ACAPO AS
Priority Data
2010148721.10.2010NO
Publication Language English (EN)
Filing Language Norvegian (NO)
Designated States
Title
(EN) DEVICE TO OPERATE DOWNHOLE EQUIPMENT
(FR) DISPOSITIF D'ACTIONNEMENT POUR ÉQUIPEMENT DE FOND
Abstract
(EN)
There is provided A device for conveying a pressure pulse for activating fluid- activated equipment in a pipe (12/27), wherein the device is characterized in that the pipe (27) comprises a flexible membrane (24) which isolates the fluid F1 in the fluid conveying pipe from a fluid F2 in another canal which is in fluid communication with the equipment, wherein the membrane, on account of its elasticity, conveys pressure changes (pressure pulses) in the fluid P1 in the pipe (12) to the fluid P2 in the other canal (30). Beneficially, the other canal (30) is fluidically coupled to a chamber (26) wherein the membrane (24) is located, and the membrane (a bellows) (24) is threaded to an exterior of the pipe section (27) and arranged in a chamber-forming (26) seat of the section of pipe (27), wherein the wall of the section of pipe includes a number of penetrating bored holes for providing fluid connection from the fluid F1 having a pressure P1 in the pipe (27) radially out towards the membrane lying against the outer wall. The membrane (24) is beneficially a sleeve-formed bellows, and the chamber forms a ring-formed arrangement surrounding the section of pipe, and the wall of the pipe comprises a number of penetrating bored holes completely around the pipe.
(FR)
Cette invention concerne un dispositif de transmission d'une impulsion de pression pour actionner un équipement à actionnement hydraulique dans un tuyau (12/27). Ledit dispositif est caractérisé en ce que le tuyau (27) comprenant une membrane souple (24) qui isole le fluide F1 circulant dans le tuyau de circulation de fluide, d'un fluide F2 circulant dans un autre canal qui est en communication fluidique avec l'équipement. Du fait de son élasticité, ladite membrane transmet les variations de pression (impulsions de pression) du fluide P1 circulant fans le tuyau (12) au fluide P2 circulant dans l'autre canal (30). Avantageusement, l'autre canal (30) est à accouplement hydraulique avec une chambre (26) dans laquelle est disposée la membrane (24), et la membrane (un soufflet) (24) est vissée sur un extérieur de la section de tuyau (27) et agencée dans un siège formant chambre (26) de la section de tuyau (27). La paroi de la section de tuyau comprend un certain nombre de trous débouchants alésés assurant une communication fluidique ente le fluide F1 présentant une pression P1 dans le tuyau (27) radialement vers l'extérieur vers la membrane qui repose contre la paroi extérieure. Avantageusement, ladite membrane (24) est un soufflet en forme de manchon et la chambre forme un agencement annulaire entourant la section de tuyau. De plus, la paroi du tuyau comprend un certain nombre de trous débouchants alésés sur la périphérie tout entière du tuyau.
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