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1. WO2020139462 - POWER GENERATION USING PRESSURE DIFFERENTIAL BETWEEN A TUBULAR AND A BOREHOLE ANNULUS

Publication Number WO/2020/139462
Publication Date 02.07.2020
International Application No. PCT/US2019/059970
International Filing Date 06.11.2019
IPC
E21B 41/00 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
41Equipment or details not covered by groups E21B15/-E21B40/95
E21B 17/00 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
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
H02K 35/02 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
35Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
02with moving magnets and stationary coil systems
H02P 9/02 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
9Arrangements for controlling electric generators for the purpose of obtaining a desired output
02Details
CPC
E21B 34/10
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
10operated by control fluid supplied from outside the borehole
E21B 41/0085
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
41Equipment or details not covered by groups E21B15/00 - E21B40/00
0085Adaptations of electric power generating means for use in boreholes
H02K 35/02
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
35Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
02with moving magnets and stationary coil systems
Applicants
  • BAKER HUGHES, A GE COMPANY, LLC [US]/[US]
Inventors
  • DUGGAN, Andrew
  • HERN, Christopher Ryan
  • EWING, Daniel
Agents
  • DUPHORNE, Darin
  • MURPHY, Keith J.
Priority Data
16/234,93628.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POWER GENERATION USING PRESSURE DIFFERENTIAL BETWEEN A TUBULAR AND A BOREHOLE ANNULUS
(FR) GÉNÉRATION D'ÉNERGIE EN UTILISANT UN DIFFÉRENTIEL DE PRESSION ENTRE UN ÉLÉMENT TUBULAIRE ET UN ESPACE ANNULAIRE DE TROU DE FORAGE
Abstract
(EN)
An apparatus for generating power includes a fluid chamber configured to receive borehole fluid, one or more conductive coils surrounding the fluid chamber, a reciprocating magnetic shuttle disposed in the fluid chamber and dividing the fluid chamber into a first volume and a second volume, a first conduit connected to the first volume, and a second conduit connected to the second volume, the first conduit and the second conduit extending from a tubular conduit to an annulus. The apparatus includes a switching assembly configured to alternate between a first operating state where the first volume is in fluid communication with the annulus and a second operating state where the first volume is in fluid communication with the tubular conduit, to alternate a direction of differential pressure between the first volume and the second volume and cause the magnetic shuttle to move in a reciprocating motion and generate an electric current.
(FR)
L'invention concerne un appareil pour générer de l'énergie, comprenant une chambre de fluide configurée pour recevoir un fluide de trou de forage, une ou plusieurs bobines conductrices entourant la chambre de fluide, une navette magnétique à mouvement alternatif disposée dans la chambre de fluide et divisant la chambre de fluide en un premier volume et un deuxième volume, un premier conduit relié au premier volume, et un deuxième conduit relié au deuxième volume. Le premier conduit et le deuxième conduit s'étendent d'un conduit tubulaire à un espace annulaire. L'appareil comprend un ensemble de commutation configuré pour alterner entre un premier état de fonctionnement, dans lequel le premier volume est en communication fluidique avec l'espace annulaire, et un deuxième état de fonctionnement, dans lequel le premier volume est en communication fluidique avec le conduit tubulaire, pour alterner une direction de pression différentielle entre le premier volume et le deuxième volume et amener la navette magnétique à se déplacer dans un mouvement de va-et-vient et générer un courant électrique.
Also published as
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