Patents Represented by Attorney, Agent or Law Firm The Mathews Firm
  • Patent number: 6595288
    Abstract: A multi-functional apparatus and method for drilling fluid and cementing operations to set casing in a wellbore for use on either top drive or rotary type rigs. The apparatus and method includes a fill-up and circulating tool, a cementing head assembly, and a wiper plug assembly. The fill-up and circulating tool comprises a mandrel with a sealing element disposed about the outside diameter of the mandrel. The cementing head and wiper plug assemblies are useable on any fill-up and circulating tool capable of being inserted into a casing. To fill the casing, the assembly is lowered from the rig such that a portion of the fill-up tools inserted into the casing, the pumps are then actuated to flow fluid into the casing. To circulate fluid, the tool is lowered further such that the sealing element sealingly engages the inside diameter of the casing to allow fluid to flow through the casing, into the wellbore, and back to the fluid pumps.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: July 22, 2003
    Assignee: Frank's International, Inc.
    Inventors: Donald E. Mosing, Samuel P. Hawkins, III, David L. Sipos, Keith T. Lutgring, Burney J. Latiolais, Jr.