Patents by Inventor Frank Lim

Frank Lim 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 drilling and operating a subsea well
    Patent number: 7073593
    Abstract: A method of preparing and operating a subsea well (23), comprising the steps of: locating a drill-through subsea tree (24) on a subsea wellhead; sealingly connecting a high pressure drilling riser (22) between the tree and a drilling platform at the sea surface; mounting a blow out preventer (16) at the top of the riser (22); drilling the well through the drilling riser and the subsea tree; and establishing a production connection between the tree (24) and a production collection facility at the sea surface through a production riser (52) which is separate from the drilling riser (22).
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: July 11, 2006
    Assignee: 2H Offshore Engineering LTD
    Inventors: Stephen A. Hatton, Frank Lim, Hugh Howells
  • Method of drilling and operating a subsea well
    Publication number: 20040074649
    Abstract: A method of preparing and operating a subsea well (23), comprising the steps of: locating a drill-through subsea tree (24) on a subsea wellhead; sealingly connecting a high pressure drilling riser (22) between the tree and a drilling platform at the sea surface; mounting a blow out preventer (16) at the top of the riser (22); drilling the well through the drilling riser and the subsea tree; and establishing a production connection between the tree (24) and a production collection facility at the sea surface through a production riser (52) which is separate from the drilling riser (22).
    Type: Application
    Filed: July 9, 2003
    Publication date: April 22, 2004
    Inventors: Stephen A. Hatton, Frank Lim, Hugh Howells