US 12,276,181 B1
Power generation for wellbore devices
Michael Linley Fripp, Singapore (SG); Stephen Michael Greci, Carrollton, TX (US); and Kanishk Parmar, Singapore (SG)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Nov. 6, 2023, as Appl. No. 18/502,555.
Int. Cl. E21B 41/00 (2006.01)
CPC E21B 41/0085 (2013.01) 17 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an electrical power generation apparatus configured to generate electrical power using a flow of fluid flowing through a fluid passageway of a conduit configured as part of a wellbore tubing, the electrical power generation apparatus comprising:
a flow restrictor configured to be deployable to extend into the conduit and interact with a flow of fluid passing through the fluid passageway, the flow restrictor configured to generate a pressure differential between a first opening and a second opening that are both in fluid communication with the fluid passageway and a cavity within the electrical power generation apparatus;
a sleeve that is position within the conduit, the sleeve moveable along a longitudinal axis of the conduit between a first position and a second position, wherein when in the first position the sleeve is configured to hold the flow restrictor in a retracted position such that the flow restrictor is not extended into the fluid passageway, and wherein when in the second position the sleeve is configured to allow the flow restrictor to extend into the fluid passageway and to interact with a flow of fluid that is flowing through the fluid passageway; and
a mechanical drive mechanism positioned within the cavity and coupled to an electrical generator, the mechanical drive mechanism configured to convert a flow of fluid passing through the cavity into a mechanical rotational movement of an input shaft coupled to the electrical generator, the electrical generator configured to generate electrical power when the input shaft of the electrical generator is rotated by the mechanical drive mechanism.