Patents by Inventor James Garland Gibson

James Garland Gibson 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 and system for determining the free point in a drill pipe
    Patent number: 7591307
    Abstract: A method of determining the stuck point in a bore hole is provided. The method employs a device, such as an inductor or coil, for writing magnetic marks into the bore hole casing. The device is incorporated into a retrieval tool so that when a decision is taken to back off from the bore hole and recover any down hole equipment, the magnetic marks can be written on the casing of the bore hole as the retrieval tool is lowered into place. As the retrieval tool is raised in the bore hole, lifting the down hole equipment towards the surface, the magnetic marks are read using a three dimensional magnetic field sensor disposed either in the fishing tool or in the down hole apparatus itself.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: September 22, 2009
    Assignee: Sondex Ltd
    Inventor: James Garland Gibson
  • Method of and system for determining the free point in a drill pipe
    Publication number: 20080060808
    Abstract: A method of determining the stuck point in a bore hole is provided. The method employs a device, such as an inductor or coil, for writing magnetic marks into the bore hole casing. The device is incorporated into a retrieval tool so that when a decision is taken to back off from the bore hole and recover any down hole equipment, the magnetic marks can be written on the casing of the bore hole as the retrieval tool is lowered into place. As the retrieval tool is raised in the bore hole, lifting the down hole equipment towards the surface, the magnetic marks are read using a three dimensional magnetic field sensor disposed either in the fishing tool or in the down hole apparatus itself.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 13, 2008
    Inventor: James Garland Gibson