公开(公告)号：US20230037403A1

公开(公告)日：2023-02-09

申请号：US17392851

申请日：2021-08-03

申请人： Youssef Boulaknadal ,  Stanislav Forgang ,  Peter Withers

发明人： Youssef Boulaknadal ,  Stanislav Forgang ,  Peter Withers

IPC分类号： G01V3/24 ,  G01V3/38 ,  G01V3/28

摘要： A resistivity imaging device and a method of operating the resistivity imaging device in a wellbore. The resistivity imaging device includes a first electrode, a second electrode, and a circuit electrically coupled to the first electrode and the second electrode. An impedance is measured of a formation surrounding the wellbore. Based on the impedance, the circuit is configured into one of a first circuit configuration for operating the resistivity imaging device in a first mode and a second circuit configuration for operating the resistivity imaging device in a second mode. The resistivity imaging device is operated using the circuit in the one of the first circuit configuration and the second circuit configuration.

公开(公告)号：US20220413178A1

公开(公告)日：2022-12-29

申请号：US17356992

申请日：2021-06-24

申请人： Stanislav Forgang ,  Ryan Rocheleau ,  Marc Stephen Ramirez ,  Youssef Boulaknadal

发明人： Stanislav Forgang ,  Ryan Rocheleau ,  Marc Stephen Ramirez ,  Youssef Boulaknadal

IPC分类号： G01V3/32 ,  G01N24/08 ,  E21B47/20 ,  E21B47/13

摘要： A device for generating oscillating signals includes an energy transfer device configured to apply an oscillating signal to a sensitive volume, and a resonant tuning circuit including the energy transfer device. The tuning circuit includes a tuning capacitor configured to cause the tuning circuit to resonate at a selected frequency, and an energy storage device. The transmitting device also includes a controller configured to apply a pulse sequence to the tuning circuit having a series of pulses, the energy storage device configured to retain electrical energy at an end of a first pulse, and discharge the electrical energy to the tuning circuit at an onset of a next pulse of the pulse sequence.

公开(公告)号：US11619760B2

公开(公告)日：2023-04-04

申请号：US17356992

申请日：2021-06-24

申请人： Youssef Boulaknadal ,  Stanislav Forgang ,  Ryan Rocheleau ,  Marc Stephen Ramirez

发明人： Youssef Boulaknadal ,  Stanislav Forgang ,  Ryan Rocheleau ,  Marc Stephen Ramirez

IPC分类号： G01V3/32 ,  E21B47/13 ,  E21B47/20 ,  G01N24/08

摘要： A device for generating oscillating signals includes an energy transfer device configured to apply an oscillating signal to a sensitive volume, and a resonant tuning circuit including the energy transfer device. The tuning circuit includes a tuning capacitor configured to cause the tuning circuit to resonate at a selected frequency, and an energy storage device. The transmitting device also includes a controller configured to apply a pulse sequence to the tuning circuit having a series of pulses, the energy storage device configured to retain electrical energy at an end of a first pulse, and discharge the electrical energy to the tuning circuit at an onset of a next pulse of the pulse sequence.

公开(公告)号：US10812069B1

公开(公告)日：2020-10-20

申请号：US16532746

申请日：2019-08-06

申请人： Youssef Boulaknadal ,  Carlos Rivero ,  Ryan Rocheleau

发明人： Youssef Boulaknadal ,  Carlos Rivero ,  Ryan Rocheleau

IPC分类号： H03K17/687 ,  E21B4/04 ,  G01V3/18 ,  H02M3/156

摘要： A switch driving circuit includes an output coil having a first end and a second end and configured to receive positive or negative pulses from an input coil and a drive portion that includes a holding capacitor coupled across the output coil. The circuit also includes a discharge circuit that includes a discharge switch connected across the output coil, the discharge circuit having a discharge resistor and a discharge capacitor connected in parallel with each other and across control terminals of the discharge switch and a shunt circuit connected across the output coil that shorts the first end to the second end after a positive pulse is received.