Patents by Inventor Mark Cesmat

Mark Cesmat 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 ANALYZING CASING WEAR AND RETRIEVAL OF METALLIC FRAGMENTS
    Publication number: 20020144545
    Abstract: A method and apparatus for retrieving magnetic casing fragments from a well using a shrouded magnet are disclosed. Retrieving casing fragments allows the determination of weight loss from the casing to assist in analyzing the integrity of the casing and to determine whether more expensive analysis is required. The shrouded magnet, a non-magnetic container enclosing a source of magnetic field, recovers metal casing fragments, which fragments are easily separated from the device by removing the source of magnetic field from the container.
    Type: Application
    Filed: April 10, 2001
    Publication date: October 10, 2002
    Inventors: Mark Cesmat, Don Holland
  • Method and apparatus for analyzing casing wear and retrieval of metallic fragments
    Patent number: 6453738
    Abstract: A method and apparatus for retrieving magnetic casing fragments from a well using a shrouded magnet are disclosed. Retrieving casing fragments allows the determination of weight loss from the casing to assist in analyzing the integrity and the condition of the casing and to determine whether more expensive analysis is required. The shrouded magnet, that is formed by a non-magnetic container enclosing a source of magnetic field, recovers metal casing fragments by attracting them and other magnetic materials from oil and gas well fluids passing by the shrouded magnet device, which fragments are easily separated from the device by removing the source of magnetic field from the container.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: September 24, 2002
    Assignee: Cesmat Service Company, Inc.
    Inventors: Mark Cesmat, Don Holland