Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source configured to provide an alternating current at a frequency and an input voltage, the pulse-generating circuit comprising an input stage circuit electrically coupled to the power source, the input stage circuit configured to control the alternating current in the pulse-generating circuit; a transformer circuit electrically coupled to the input stage circuit, the transformer circuit comprising an open-core transformer configured to generate an output voltage higher than the input voltage; and an output stage circuit electrically coupled to the transformer circuit, the output stage circuit configured to store energy for an electric pulse; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage circuit to receive the electric pulse from the pulse-generating circuit.

Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source to provide power at a frequency, the pulse-generating circuit comprising an input stage tank circuit electrically coupled to the power source, the input stage tank circuit configured to have a resonant frequency approximately equal to the frequency; a series tank circuit electromagnetically coupled to the input stage tank circuit, the series tank circuit configured to have a resonant frequency approximately equal to the frequency; and an output stage tank circuit electromagnetically coupled to the series tank circuit, the output stage tank circuit configured to have a resonant frequency approximately equal to the frequency; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage tank circuit to receive an electric pulse from the pulse-generating circuit.

Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source configured to provide an alternating current at a frequency and an input voltage, the pulse-generating circuit comprising an input stage circuit electrically coupled to the power source, the input stage circuit configured to control the alternating current in the pulse-generating circuit; a transformer circuit electrically coupled to the input stage circuit, the transformer circuit comprising an open-core transformer configured to generate an output voltage higher than the input voltage; and an output stage circuit electrically coupled to the transformer circuit, the output stage circuit configured to store energy for an electric pulse; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage circuit to receive the electric pulse from the pulse-generating circuit.

Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source to provide power at a frequency, the pulse-generating circuit comprising an input stage tank circuit electrically coupled to the power source, the input stage tank circuit configured to have a resonant frequency approximately equal to the frequency; a series tank circuit electromagnetically coupled to the input stage tank circuit, the series tank circuit configured to have a resonant frequency approximately equal to the frequency; and an output stage tank circuit electromagnetically coupled to the series tank circuit, the output stage tank circuit configured to have a resonant frequency approximately equal to the frequency; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage tank circuit to receive an electric pulse from the pulse-generating circuit.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively or additionally, a system is configured with a vehicle to distally position the propagated energy to the explosive device such that damage caused by the explosive device is reduced.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively or additionally, a system is configured with a vehicle to distally position the propagated energy to the explosive device such that damage caused by the explosive device is reduced.