Patents by Inventor Melvin Schweitzer

Melvin Schweitzer 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).

  • System and process for secondary hydrocarbon recovery
    Patent number: 6467543
    Abstract: A hydrocarbon reservoir undergoing secondary recovery is subject to a first and then at least a second gravity gradient survey in which a gravity gradiometer takes gradient measurements on the surface above the reservoir to define successive data sets. The differences between the first and subsequent gravity gradient survey yields information as to sub-surface density changes consequent to displacement of the hydrocarbon and the replacement thereof by the driveout fluid including the position, morphology, and velocity of the interface between the hydrocarbon to be recovered and the driveout fluid.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 22, 2002
    Assignee: Lockheed Martin Corporation
    Inventors: Manik Talwani, Walter K Feldman, Melvin Schweitzer
  • System and process for optimizing gravity gradiometer measurements
    Patent number: 6212952
    Abstract: Gravity gradient measurements taken by an accelerometer type gradiometer are optimized by tilting the measuring plane of the instrument by a selected angle above and below the horizontal to obtain data that can be differenced or otherwise processed to remove instrument bias and by taking data at first and then at a second orthogonal azimuth heading to obtain absolute non-relative gradient measurements.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 10, 2001
    Assignee: Lockheed Martin Corporation
    Inventors: Melvin Schweitzer, Walter K. Feldman, William F Konig, Daniel J. DiFrancesco, David L. Sieracki, Carlo P. San Giovanni
  • System and process for secondary hydrocarbon recovery
    Patent number: 6152226
    Abstract: A hydrocarbon reservoir undergoing secondary recovery is subject to a first and then at least a second gravity gradient survey in which a gravity gradiometer takes gradient measurements on the surface above the reservoir to define successive data sets. The differences between the first and subsequent gravity gradient survey yields information as to sub-surface density changes consequent to displacement of the hydrocarbon and the replacement thereof by the driveout fluid including the position, morphology, and velocity of the interface between the hydrocarbon to be recovered and the driveout fluid.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: November 28, 2000
    Assignee: Lockheed Martin Corporation
    Inventors: Manik Talwani, Walter K Feldman, Melvin Schweitzer
  • System and process for optimizing gravity gradiometer measurements
    Patent number: 6125698
    Abstract: Gravity gradient measurements taken by an accelerometer type gradiometer are optimized by tilting the measuring plane of the instrument by a selected angle above and below the horizontal to obtain data that can be differenced or otherwise processed to remove instrument bias and by taking data at first and then at a second orthogonal azimuth heading to obtain absolute non-relative gradient measurements.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: October 3, 2000
    Assignee: Lockheed Martin Corporation
    Inventors: Melvin Schweitzer, Walter K. Feldman, William F Konig, Daniel J. DiFrancesco, David L. Sieracki, Carlo P. San Giovanni