US 7,320,372 B2
Jet assisted drilling method
Thomas E. Falgout, Sr., 110 Charles Read St., Lafayette, La. 70503 (US)
Filed on Feb. 05, 2005, as Appl. No. 11/51,841.
Prior Publication US 2006/0175094 A1, Aug. 10, 2006
Int. Cl. E21B 7/08 (2006.01); E21B 7/18 (2006.01)
U.S. Cl. 175—61  [175/67; 175/73; 175/424; 175/45] 12 Claims
OG exemplary drawing
 
1. A method for deflecting the direction of a well bore being drilled, utilizing drill head jet nozzles and a kick sub, the method comprising:
a) assembling a drill string with a bottom hole assembly including a jet nozzle equipped drill head attached to a kick sub, the kick sub being attached to an upwardly continuing drill string;
b) suspending the drill string in a well bore and providing drilling fluid flow down the drill string bore;
c) deflecting the kick sub and jetting ahead to provide a length of well bore laterally displaced from the original well bore direction;
d) straightening the kick sub and drilling ahead along the deflected well bore direction; and
e) wherein said deflecting comprises bending said bottom hole assembly.