US 12,448,849 B2
Power delivery system for pulsed power drilling
Nagaraja K. Pai, Houston, TX (US); Boguslaw Wiecek, Houston, TX (US); and Ana Beatriz Martins Aguiar, Rio de Janeiro (BR)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc, Houston, TX (US)
Filed on Jul. 26, 2023, as Appl. No. 18/359,761.
Prior Publication US 2025/0034946 A1, Jan. 30, 2025
Int. Cl. E21B 7/15 (2006.01); E21B 17/02 (2006.01); E21B 41/00 (2006.01)
CPC E21B 7/15 (2013.01) [E21B 17/023 (2013.01); E21B 17/028 (2013.01); E21B 41/0085 (2013.01)] 20 Claims
OG exemplary drawing
 
16. A method comprising:
performing a pulsed power drilling of a wellbore using a pulsed power drilling apparatus, the pulsed power drilling comprising,
boosting, via a voltage booster of the pulsed power drilling apparatus, electrical power received from a power supply at a surface of the wellbore to a higher voltage;
charging, via a multi-mode capacitor charger configured to switch between a constant power mode and a constant current mode, at least one capacitor of the pulsed power drilling apparatus, wherein the multi-mode capacitor charger is configured to switch between the constant power mode and the constant current mode based, at least in part, on a charge time of the at least one capacitor; and
storing the electrical power at the higher voltage into the at least one capacitor of the pulsed power drilling apparatus.