Patents by Inventor W. Louis Medlin

W. Louis Medlin 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).

  • Method of identifying gas, oil and water zones in a subsurface formation
    Patent number: 4312049
    Abstract: A method of logging a wellbore to identify oil, gas and water zones in a hydrocarbon-bearing formation that is characterized by acoustic velocities which are maximum when saturated with oil, minimum when saturated with water and intermediate when saturated with gas. The formation is logged with a sonic logging system utilizing a frequency within the range of 0.1 to 10 KHz and logged with a lithologic logging system to account for variations in lithology on the sonic log. Thereafter the sonic log is compared with the known acoustic velocity characteristic of the hydrocarbon-bearing formation to identify the oil, gas and water zones therein.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: January 19, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Lucien Masse, W. Louis Medlin, James H. Sexton