US 12,281,544 B2
Method of using a magnetic array to strengthen/direct magnetic flux in a downhole flow control valve coupler and power generator
Ryan W. McChesney, Carrollton, TX (US); Stephen Michael Greci, Carrollton, TX (US); and Gordon McLeary, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 6, 2023, as Appl. No. 18/206,233.
Prior Publication US 2024/0410257 A1, Dec. 12, 2024
Int. Cl. E21B 41/00 (2006.01); E21B 43/12 (2006.01)
CPC E21B 41/0085 (2013.01) [E21B 43/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A magnetic coupling mechanism in a downhole flow control tool, comprising:
a first chamber configured to receive i) production fluids or ii) injection fluids;
a first component with a plurality of magnets located within the first chamber, and wherein the plurality of magnets are configured in a Halbach Array;
a second chamber;
a second component with a plurality of magnets located within the second chamber, and wherein the plurality of magnets are configured in a Halbach Array;
wherein the first chamber and the second chamber share a non-magnetic separation;
wherein the first component is magnetically coupled to the second component by a plurality of strong magnetic flux,
wherein the downhole flow control tool comprises a valve body with a flow path, an energy harvesting device, an adjustable valve, and a unit controller,
wherein the flow path comprises a first fluid port within a fluid chamber fluidically coupled to a second fluid port via at least one fluid duct,
wherein the energy harvesting device comprises a generator and a turbine assembly,
wherein the turbine assembly is fluidically coupled to the flow path and located between the second fluid port and the fluid chamber, and
wherein the turbine assembly is configured to induce rotation within the generator.