Patents by Inventor F. Martin Smith

F. Martin Smith 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).

  • Drilling fluid methods and composition
    Patent number: 5099930
    Abstract: A method is provided for the prevention of balling of formation cuttings upon the surface of drilling equipment and for lubrication of said equipment used in conjunction with subterranean well operations. An aqueous system is prepared to which is added a composition of a water insoluble polyglycol having a molecular weight of from between about 1,200 and about 10,000, an emulsifying surfactant having a hydrophilic/hydrophobic balance of about 4 or more, and a hydrotrope. An additive for use in the method also is disclosed.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: March 31, 1992
    Assignee: Baker Hughes Incorporated
    Inventors: Dorothy P. Enright, William M. Dye, F. Martin Smith, Alphonse C. Perricone
  • Drilling fluid methods and composition
    Patent number: 5007489
    Abstract: A method is provided for the prevention of balling of formation cuttings upon the surface of drilling equipment and for lubrication of said equipment used in conjunction with subterranean well operations. An aqueous system is prepared to which is added a composition of a water insoluble polyglycol having a molecular weight of from between about 1,200 and about 10,000, an emulsifying surfactant having a hydrophilic/hydrophobic balance of about 4 or more, and a hydrotrope. An additive for use in the method also is disclosed.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: April 16, 1991
    Assignee: Baker Hughes Incorporated
    Inventors: Dorothy P. Enright, William M. Dye, F. Martin Smith, Alphonse C. Perricone