Patents by Inventor Julien Steimetz

Julien Steimetz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PARK POSITION FOR A SURVEY TOOL
    Publication number: 20240102379
    Abstract: A gyroscope assembly is maintained in a park position during drilling activities. In the park position, a sensitive axis of a gyroscope in the gyroscope assembly is perpendicular or approximately perpendicular to a longitudinal axis of a downhole tool. Maintaining the park position during drilling activities reduces the drift bias caused by overloading the input signal of the gyroscope due to rotation of the downhole tool.
    Type: Application
    Filed: February 23, 2022
    Publication date: March 28, 2024
    Inventors: Makito Katayama, Julien Steimetz, Joffroy Dominique Daniel Urbain, Zainab Orooq
  • Actuation valve system with pilot and main valves
    Patent number: 11795781
    Abstract: A tool, e.g. a downhole tool, utilizes at least one actuator which may be actuated rapidly between positions during operation of the tool. The actuator is moved via flow of an actuating fluid controlled by a main valve which, in turn, is controlled via a pilot valve. The pilot valve is operated to selectively control flow of the actuating fluid to the main valve so as to shift the main valve between desired operational positions.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: October 24, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Edward George Parkin, Michael Pearce, Julien Steimetz, Jonathan D. Marshall, D. Peter Johnson, Clint William Philbrick
  • Pressure adjuster for a downhole tool
    Patent number: 11753907
    Abstract: A downhole tool includes a housing and a housing chamber. The housing chamber is separated from a fluid chamber by a seal. The seal maintains a pressure differential between the housing chamber and the fluid chamber. A pressure adjuster between the housing chamber and the fluid chamber maintains the pressure differential below a maximum pressure differential.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: September 12, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Edward George Parkin, Julien Steimetz, Cecily Millwater, Michael Pearce
  • PRE-LOADED BEARINGS FOR SENSOR SHELL
    Publication number: 20230175389
    Abstract: Devices, systems, and methods for stabilizing a gyroscopic sensor include bearings supporting a MEMS-type gyroscope located in a shell. The shell rotates around a secondary shaft connected to an extension arm of a primary shaft. A biasing element pre-loads thrust bearings on either side of the shell against the extension arm, which can limit motion of the shell during operation of the sensor, thereby improving measurements made by the sensor.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 8, 2023
    Inventor: Julien Steimetz
  • PRESSURE ADJUSTER FOR A DOWNHOLE TOOL
    Publication number: 20220213763
    Abstract: A downhole tool includes a housing and a housing chamber. The housing chamber is separated from a fluid chamber by a seal. The seal maintains a pressure differential between the housing chamber and the fluid chamber. A pressure adjuster between the housing chamber and the fluid chamber maintains the pressure differential below a maximum pressure differential.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 7, 2022
    Inventors: Edward George Parkin, Julien Steimetz, Cecily Millwater, Michael Pearce
  • ACTUATION VALVE SYSTEM WITH PILOT AND MAIN VALVES
    Publication number: 20210198977
    Abstract: A tool, e.g. a downhole tool, utilizes at least one actuator which may be actuated rapidly between positions during operation of the tool. The actuator is moved via flow of an actuating fluid controlled by a main valve which, in turn, is controlled via a pilot valve. The pilot valve is operated to selectively control flow of the actuating fluid to the main valve so as to shift the main valve between desired operational positions.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Inventors: Edward George Parkin, Michael Pearce, Julien Steimetz, Jonathan D. Marshall, D. Peter Johnson, Clint William Philbrick
  • Pilot controlled actuation valve system
    Patent number: 10947814
    Abstract: A tool, e.g. a downhole tool, utilizes at least one actuator which may be actuated rapidly between positions during operation of the tool. The actuator is moved via flow of an actuating fluid controlled by a main valve which, in turn, is controlled via a pilot valve. The pilot valve is operated to selectively control flow of the actuating fluid to the main valve so as to shift the main valve between desired operational positions.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 16, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Edward George Parkin, Michael Pearce, Julien Steimetz, Jonathan D. Marshall, D. Peter Johnson, Clint William Philbrick
  • PILOT CONTROLLED ACTUATION VALVE SYSTEM
    Publication number: 20200063526
    Abstract: A tool, e.g. a downhole tool, utilizes at least one actuator which may be actuated rapidly between positions during operation of the tool. The actuator is moved via flow of an actuating fluid controlled by a main valve which, in turn, is controlled via a pilot valve. The pilot valve is operated to selectively control flow of the actuating fluid to the main valve so as to shift the main valve between desired operational positions.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 27, 2020
    Inventors: Edward George Parkin, Michael Pearce, Julien Steimetz, Jonathan D. Marshall, D. Peter Johnson, Clint William Philbrick