Patents by Inventor George A. Lock

George A. Lock 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 for determining fluid type and lithology of subterranean formations
    Patent number: 4008392
    Abstract: Disclosed herein in a method for determining the lithology of and the types of fluid contained within a subterranean formation. In the practice of this invention, high energy neutrons bombard the formation matrix and formation fluids. Induced gamma rays from inelastic scattering reactions are indicative of the type of fluid in the formation, and induced gamma rays from neutron capture reactions are indicative of the lithology of the formation matrix. Among other things, this technique permits differentiation between water-saturated limestones and oil-bearing sandstones. Also disclosed herein is a method for detecting the presence of natural gas within a subterranean formation.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: February 15, 1977
    Assignee: Exxon Production Research Company
    Inventors: George A. Lock, Wilmer A. Hoyer