Patents by Inventor Roland G. Riedesel, Jr.

Roland G. Riedesel, Jr. 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).

  • Dielectric well logging system with at least three transmitter coils and at least two receiver coils for determining resistivity and dielectric constant of a subsurface formation adjacent a fluid invaded zone of the formation
    Patent number: 4609873
    Abstract: A dielectric well logging system is provided to determine dielectric constant and resistivity in formations invaded by water to determine oil and water saturations of the formations. Plural transmitters are activated in a time division multiplex manner and sensed by receiver coils. The amplitude ratio and phase difference between the signals sensed by the receiver coils are then used to determine dielectric constant and resistivity which may then be used to determine invasion characteristics.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: September 2, 1986
    Assignee: Texaco Inc.
    Inventors: Percy T. Cox, Richard A. Meador, Roland G. Riedesel, Jr., Kerry D. Savage
  • Temperature compensated well logging tool
    Patent number: 4427941
    Abstract: A well logging tool adapted for use in a borehole traversing an earth formation includes at least one sensor sensing at least one characteristic of the earth formation. Another sensor senses the ambient temperature and provides a corresponding temperature signal. An output circuit provides a temperature compensated output signal corresponding to the sensed characteristic of the earth formation in accordance with the temperature signal and the characteristic signal.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: January 24, 1984
    Assignee: Texaco Inc.
    Inventors: Roland G. Riedesel, Jr., Theodore W. Nussbaum, Wayne F. Warren
  • Dielectric well logging means and method utilizing the signals from a pair of receivers for providing clock pulses corresponding to earth formation dielectric constant
    Patent number: 4130793
    Abstract: Electrical energy is induced into an earth formation by a transmitter in apparatus, adapted to be passed through a borehole traversing the earth formation. Clock pulses are also provided in the apparatus. At least two receivers provide signals corresponding to received electrical energy from the earth formation. A gating circuit provides groups of clock pulses in accordance with the signals from the receivers so that the number of clock pulses in each group corresponds to the dielectric constant of the earth formation.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: December 19, 1978
    Assignee: Texaco Inc.
    Inventors: James R. Bridges, Roland G. Riedesel, Jr., Larry W. Thompson