Patent ID: 11898420
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A method for forming a wellbore in a geologic formation with a high-voltage drilling system, the method comprising:
forming an up-hole portion of the wellbore to have an up-hole diameter;
coupling one or more electrodes to a downhole portion of a drill string;
coupling an electrical generator that is part of an up-hole portion of the drill string to the downhole portion of the drill string such that the electrical generator is electrically coupled to the one or more electrodes;
lowering the electrical generator into the up-hole portion of the wellbore on the up-hole portion of the drill string;
circulating a wellbore fluid through the wellbore to cause the electrical generator to produce electrical power within the up-hole portion of the wellbore; and
delivering the electrical power to the one or more electrodes to form a downhole portion of the wellbore with a downhole diameter less than the up-hole diameter, wherein forming the downhole portion of the wellbore includes maintaining the electrical generator in the up-hole portion of the wellbore producing the electrical power, the electrical generator having a generator diameter that is greater than the downhole diameter of the downhole portion of the wellbore.