Patents by Inventor Johnnie Kotrla

Johnnie Kotrla 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).

  • Riser connector for a wellhead assembly and method for conducting offshore well operations using the same
    Patent number: 6520262
    Abstract: A riser connector is provided for connecting a riser to a wellhead assembly having a bore therethrough. The connector includes a housing having a first and a second end. The first end of the housing has an opening and is adapted for mounting to the wellhead assembly with the opening in communication with the bore of the wellhead assembly. The second end has a first opening connectable to the riser having a diameter at least the same as the inner diameter of the riser, and a second opening, having a diameter at least substantially the same as the diameter of the bore of the wellhead assembly. The housing further includes a first conduit connecting the opening in the first end of the housing to the first opening in the second end of the housing, and a second conduit connecting the opening in the first end of the housing to the second opening in the second end of the housing. In use, first well operations are conducted through the riser in the conventional manner.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: February 18, 2003
    Assignee: Cooper Cameron Corporation
    Inventors: Richard C. Barnett, Johnnie Kotrla, William M. Taylor
  • Riser connector for a wellhead assembly and method for conducting offshore well operations using the same
    Publication number: 20020100591
    Abstract: A riser connector is provided for connecting a riser to a wellhead assembly having a bore therethrough. The connector includes a housing having a first and a second end. The first end of the housing has an opening and is adapted for mounting to the wellhead assembly with the opening in communication with the bore of the wellhead assembly. The second end has a first opening connectable to the riser having a diameter at least the same as the inner diameter of the riser, and a second opening, having a diameter at least substantially the same as the diameter of the bore of the wellhead assembly. The housing further includes a first conduit connecting the opening in the first end of the housing to the first opening in the second end of the housing, and a second conduit connecting the opening in the first end of the housing to the second opening in the second end of the housing. In use, first well operations are conducted through the riser in the conventional manner.
    Type: Application
    Filed: January 26, 2001
    Publication date: August 1, 2002
    Inventors: Richard C. Barnett, Johnnie Kotrla, William M. Taylor