Patents by Inventor David E. Revus

David E. Revus 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).

  • Microwave oil saturation scanner
    Patent number: 5006785
    Abstract: The present invention is comprised of a non-intrusive microwave sensor system for measuring fluid saturation or multiple fluids contained within a flowline or a fluid saturated porous medium. Here, the microwave oil saturation scanner (MOSS) comprises a transmit portion and a measurement portion. The transmit portion generates two signals for different purposes. The first signal is used as a reference signal upon which the sample signal is eventually compared. The second signal is transmitted through the sample which causes a phase angle shift and signal attenuation. The two signals are then compared in the measurement portion where the phase angle shift and the signal attenuation is related to the concentration of oil and water in the sample mixture.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: April 9, 1991
    Assignee: Chevron Research Company
    Inventors: David E. Revus, Russell E. Boyer
  • Microwave system for monitoring water content in a petroleum pipeline
    Patent number: 4902961
    Abstract: A method and apparatus for determining the water content of crude oil in a pipeline is disclosed. The device consists of S-band tarnsmitting and receiving antennas, and X-band transmitting and receiving antennas. These are used to determine the complex dielectric constant of the fluid in a pipeline. Water salinity and an adjustment to the mixing formula are calculated using X-band and S-band sidewall links. The overall water content of the pipeline can then be determined by using as S-band main link that transmits a wave through a representative portion of the entire pipeline.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: February 20, 1990
    Assignee: Chevron Research Company
    Inventors: Bibhas R. De, Paul L. Donoho, David E. Revus, Russell E. Boyer
  • Microwave oil saturation scanner
    Patent number: 4764718
    Abstract: The present invention is comprised of a non-intrusive microwave sensor system for measuring fluid saturation or multiple fluids contained within a flowline or a fluid saturated porous medium. Here, the microwave oil saturation scanner (MOSS) comprises a transmit portion and a measurement portion. The transmit portion generates two signals for different purposes. The first signal is used as a reference signal upon which the sample signal is eventually compared. The second signal is transmitted through the sample which causes a phase angle shift and signal attenuation. The two signals are then compared in the measurement portion where the phase angle shift and the signal attenuation is related to the concentration of oil and water in the sample mixture.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: August 16, 1988
    Assignee: Chevron Research Company
    Inventors: David E. Revus, Russell E. Boyer