Patents by Inventor Zengshi Chen

Zengshi Chen 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).

  • Real-time pump diagnostic algorithms and application thereof
    Patent number: 11639660
    Abstract: A method for determining a pump card for a well. The method comprising: obtaining a first set of data points, wherein the first set of data points comprise a first set of polished rod position data points of the well and a first set of polished rod load data points of the well; and calculating a first data point of a pump position and a pump load using the first set of data points. The calculating occurs before the well moves through a first complete stroke cycle.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: May 2, 2023
    Assignee: RAVDOS HOLDINGS INC.
    Inventors: Zengshi Chen, Doneil Macusi Dorado, Eric Oestreich, Gary Hughes, Andy Cordova
  • Pumping control unit and method of computing a time-varying downhole parameter
    Patent number: 10393107
    Abstract: A pumping control unit is disclosed herein. The pumping control unit includes a processor coupled to a memory and a communication interface. The memory is configured to store an invariant matrix. The communication interface is configured to receive a plurality of measurements of a time-varying parameter for a rod pumping unit. The plurality of measurements is taken at a surface of a pumping site over a pump cycle for a sucker rod string. The processor is configured to gain access to the invariant matrix in the memory and the plurality of measurements from the communication interface. The processor is further configured to compute a Fourier coefficient array based on the invariant matrix and the plurality of measurements. The processor is further configured to compute a time-varying downhole parameter based on the Fourier coefficient array and a sucker rod string model.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Younkoo Jeong, Ying Mao, Zengshi Chen, Shyam Sivaramakrishnan
  • PUMPING CONTROL UNIT AND METHOD OF COMPUTING A TIME-VARYING DOWNHOLE PARAMETER
    Publication number: 20170037846
    Abstract: A pumping control unit is disclosed herein. The pumping control unit includes a processor coupled to a memory and a communication interface. The memory is configured to store an invariant matrix. The communication interface is configured to receive a plurality of measurements of a time-varying parameter for a rod pumping unit. The plurality of measurements is taken at a surface of a pumping site over a pump cycle for a sucker rod string. The processor is configured to gain access to the invariant matrix in the memory and the plurality of measurements from the communication interface. The processor is further configured to compute a Fourier coefficient array based on the invariant matrix and the plurality of measurements. The processor is further configured to compute a time-varying downhole parameter based on the Fourier coefficient array and a sucker rod string model.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 9, 2017
    Inventors: Younkoo Jeong, Ying Mao, Zengshi Chen, Shyam Sivaramakrishnan
  • REAL-TIME PUMP DIAGNOSTIC ALGORITHMS AND APPLICATION THEREOF
    Publication number: 20150275651
    Abstract: A method for determining a pump card for a well. The method comprising: obtaining a first set of data points, wherein the first set of data points comprise a first set of polished rod position data points of the well and a first set of polished rod load data points of the well; and calculating a first data point of a pump position and a pump load using the first set of data points. The calculating occurs before the well moves through a first complete stroke cycle.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 1, 2015
    Inventors: Zengshi Chen, Doneil Macusi Dorado, Eric Oestreich, Gary Hughes, Andy Cordova