Patents by Inventor Jerry Lavelle Keen, Jr.

Jerry Lavelle Keen, Jr. 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).

  • Combined casing expansion/casing while drilling method and apparatus
    Patent number: 7287603
    Abstract: A drilling assembly (2) comprises upper (4) and lower (6) drill strings with a fluid passage (80) therethrough for distributing fluid to a bottom hole assembly (10). The upper drill string (4) has an upper end (11) connectable to a drilling apparatus (13) and fluid source (16) and a lower end (18) with an attached casing expander unit (20) that communicates the fluid passage (80) of the upper (4) and lower (6) drill strings. An upper end (22) of the lower drill string (6) is formed from a casing string (24) telescoped over the casing expander unit. A constriction (31) connects the casing string (24) with the rest of the lower drill string (6). A flow restriction device (35) in the lower drill string acts to control fluid flow through the fluid passage.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: October 30, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Richard T. Hay, Gerald Edward Kent, Jerry Lavelle Keen, Jr., Charles M. Reid