Methods and apparatus for directionally drilling a bore and...

Details Methods and apparatus for directionally drilling a bore and... Methods and apparatus for directionally drilling a bore and...

E - Fixed Constructions

21

B

E21B 7/04 (2006.01)

Patent

CA 2194079

The present invention provides an apparatus and method for directional drilling and a method and apparatus for placing pipe in a directionally drilled bore. The present invention provides a launch tube which is placed into unstable soil. The tube is fitted with a unique cutting shoe which forces soil both into and out of the tube to prevent the tube from becoming obstructed. Preferably, the launch tube extends to bedrock or stable soil. Once the launch tube is placed a directional drill is moved through the tube and into the bedrock so that the bore may be directionally drilled in the bedrock. Once the bore is established a pipe, or a plurality of pipes, may be placed into the tube using known techniques.

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