Patents by Inventor Johannis J. Den Boer

Johannis J. Den Boer 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).

  • Measurment of gas and liquid flowrates and watercut of multiphase mixtures of oil, water and gas
    Patent number: 5287752
    Abstract: A device and method for measuring multiphase flow in a pipeline with an electric measurement system which includes a plurality of capacitors, which capacitors are formed of at least two plates of non-conducting material, each plate being provided with an array of electrodes. The plates are arranged in the interior of the pipeline and extend substantially parallel in the longitudinal direction thereof.The liquid and gas flowrates are gauged by continuously measuring both the velocity and cross-sectional area of the pipeline occupied by each phase.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: February 22, 1994
    Assignee: Shell Oil Company
    Inventor: Johannis J. Den Boer