Invention Grant
- Patent Title: Downhole reconfiguration of pulsed-power drilling system components during pulsed drilling operations
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Application No.: US16421251Application Date: 2019-05-23
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Publication No.: US11078727B2Publication Date: 2021-08-03
- Inventor: Daniel D. Gleitman , William M. Moeny
- Applicant: Halliburton Energy Services, Inc. , Chevron U.S.A. Inc. , SDG LLC
- Applicant Address: US TX Houston; US CA San Ramon; US NV Minden
- Assignee: Halliburton Energy Services, Inc.,Chevron U.S.A. Inc.,SDG LLC
- Current Assignee: Halliburton Energy Services, Inc.,Chevron U.S.A. Inc.,SDG LLC
- Current Assignee Address: US TX Houston; US CA San Ramon; US NV Minden
- Agency: Baker Botts L.L.P.
- Agent Benjamin Ford
- Main IPC: E21B7/15
- IPC: E21B7/15 ; E21B49/00 ; E21B44/00 ; E21B21/06 ; E21B47/12

Abstract:
A disclosed pulsed-power drilling system may include a controller that receives and analyzes feedback from downhole components reflecting changing conditions or performance measurements associated with a pulsed drilling operation to determine that an operating parameter of the drilling operation should be modified. The controller may output a control signal to cause an adjustment of a configurable downhole component, such as mechanical, electrical, or hydraulic component that affects the operating parameter, while the drill bit remains in the wellbore. The controller may adjust a segmented transformer of a pulse-generating circuit, changing the number of primary winding switches that are fired, or the timing of the firing of the switches, to modify characteristics of the generated pulses. Adjusting a downhole component may affect the drilling rate, the drilling direction, the flow of drilling fluid, a pulse rise time, a pulse repetition rate, or a rate of penetration for the drilling operation.
Public/Granted literature
- US20200370375A1 DOWNHOLE RECONFIGURATION OF PULSED-POWER DRILLING SYSTEM COMPONENTS DURING PULSED DRILLING OPERATIONS Public/Granted day:2020-11-26
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