Patents Assigned to Ormexla USA, Inc.
  • Apparatus for extraction of oil via underground drilling and production location
    Patent number: 6796381
    Abstract: A well pressure control assembly includes an annular pressure containment structure useful for manipulating pipe during drilling and other well operations performed with annular pressure at the wellhead. The annular pressure containment structure includes a sealing structure involving a sealing wall and a fluid port extending through the sealing wall through with a hydrodynamic bearing fluid is injectable adjacent pipe received in the annular pressure containment structure.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: September 28, 2004
    Assignee: Ormexla USA, Inc.
    Inventors: Maynard F. Ayler, Richard E. Andrews