US 6,981,547 B2
Wire lock expandable connection
Patrick G. Maguire, Cypress, Tex. (US); and David E. Hirth, Pasadena, Tex. (US)
Assigned to Weatherford/Lamb, Inc., Houston, Tex. (US)
Filed on Dec. 06, 2002, as Appl. No. 10/313,920.
Prior Publication US 2004/0108119 A1, Jun. 10, 2004
Int. Cl. E21B 17/02 (2006.01); E21B 23/00 (2006.01); E16L 37/22 (2006.01)
U.S. Cl. 166—242.7 13 Claims
OG exemplary drawing
 
1. A method for connecting a first and a second tubular, comprising:
stabbing the first tubular into the second tubular to align a variable pitched groove formed on an inside of an end of the first tubular with a corresponding variable pitched groove formed on an outside of an end of the second tubular to form a variable pitched continuous recess through the variable pitched grooves;
positioning a connector member into at least a portion of the continuous recess to provide a connection between the tubulars; and
expanding at least a portion of the connection radially outward, wherein resistance to relative rotation between the tubulars is maintained after expansion.