Patents by Inventor Bension Singer

Bension Singer 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 and apparatus for measuring formation resistivity through casing using single-conductor electrical logging cable
    Patent number: 5543715
    Abstract: A method of determining resistivity of an earth formation penetrated by a wellbore having conductive casing. The preferred embodiment includes inserting a sonde into the wellbore, the sonde having a plurality of electrodes at axially spaced apart locations adapted to electrically contact the casing, applying electrical current between a first and a second one of the electrodes and measuring the current, measuring a first voltage between a first pair of electrodes axially disposed between the first and second electrodes and measuring a second voltage between a second pair of electrodes also axially disposed between the first and second electrodes and disposed externally to the first pair to determine casing resistance in between the pairs of electrodes. A second difference between the first and second voltages is also measured.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: August 6, 1996
    Assignee: Western Atlas International, Inc.
    Inventors: Bension Singer, Hans M. Maurer, Kurt M. Strack, Otto N. Fanini