Push drill guidance apparatus

Details Push drill guidance apparatus Push drill guidance apparatus

E - Fixed Constructions

21

B

358/3

E21B 47/024 (2006.01)

Patent

CA 1132723

PUSH DRILL GUIDANCE APPARATUS Abstract of Disclosure An electronic guidance system for a push drill that is remotely guided by the operator The system functions to maintain continual indi- cation as to the attitude of the drilling appa- ratus, i.e., pitch, roll and distance to rock formations overlying or underlying the drilled stratum, with such indication being made avail- able to the remote operator so that he can control the progression of the drilling apparatus. The drilling apparatus utilizes an instrument package adjacent the drilling mechanism which samples pitch and roll data through accelerometer output, and which monitors the distance of the drill head from adjacent rock formations by means of gamma ray count.

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