Patents by Inventor Behrouz S. EBRAHIMI

Behrouz S. EBRAHIMI 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).

  • Bearing fault detection for surface pumping units
    Patent number: 11512582
    Abstract: Methods and apparatus for operating a rod pumping unit for a wellbore are provided. One example method includes measuring vibration data in the time domain using at least one sensor coupled to a housing for a moving component of the rod pumping unit; converting the vibration data in the time domain to vibration data in the frequency domain; determining that: (1) at least one frequency component of the frequency-domain vibration data in a first frequency band has a power above a first threshold; or (2) a number of frequency components of the frequency-domain vibration data in a second frequency band having power above a second threshold is above a third threshold; and outputting an indication based on the determination.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 29, 2022
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Behrouz S. Ebrahimi, Jeffrey John Lembcke, Clark E. Robison
  • BEARING FAULT DETECTION FOR SURFACE PUMPING UNITS
    Publication number: 20200408079
    Abstract: Methods and apparatus for operating a rod pumping unit for a wellbore are provided. One example method includes measuring vibration data in the time domain using at least one sensor coupled to a housing for a moving component of the rod pumping unit; converting the vibration data in the time domain to vibration data in the frequency domain; determining that: (1) at least one frequency component of the frequency-domain vibration data in a first frequency band has a power above a first threshold; or (2) a number of frequency components of the frequency-domain vibration data in a second frequency band having power above a second threshold is above a third threshold; and outputting an indication based on the determination.
    Type: Application
    Filed: September 16, 2020
    Publication date: December 31, 2020
    Inventors: Behrouz S. EBRAHIMI, Jeffrey John LEMBCKE, Clark E. ROBISON
  • Bearing fault detection for surface pumping units
    Patent number: 10794173
    Abstract: Methods and apparatus for operating a rod pumping unit for a wellbore are provided. One example method includes measuring vibration data in the time domain using at least one sensor coupled to a housing for a moving component of the rod pumping unit; converting the vibration data in the time domain to vibration data in the frequency domain; determining that: (1) at least one frequency component of the frequency-domain vibration data in a first frequency band has a power above a first threshold; or (2) a number of frequency components of the frequency-domain vibration data in a second frequency band having power above a second threshold is above a third threshold; and outputting an indication based on the determination.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 6, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Behrouz S. Ebrahimi, Jeffrey John Lembcke, Clark E. Robison
  • BEARING FAULT DETECTION FOR SURFACE PUMPING UNITS
    Publication number: 20180298744
    Abstract: Methods and apparatus for operating a rod pumping unit for a wellbore are provided. One example method includes measuring vibration data in the time domain using at least one sensor coupled to a housing for a moving component of the rod pumping unit; converting the vibration data in the time domain to vibration data in the frequency domain; determining that: (1) at least one frequency component of the frequency-domain vibration data in a first frequency band has a power above a first threshold; or (2) a number of frequency components of the frequency-domain vibration data in a second frequency band having power above a second threshold is above a third threshold; and outputting an indication based on the determination.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 18, 2018
    Inventors: Behrouz S. EBRAHIMI, Jeffrey John LEMBCKE, Clark E. ROBISON