Title: Push drill guidance indication apparatus

Abstract: An electronic guidance system for a push drill that is remotely guided by the operator. The system functions to maintain continual indication as to the attitude of the drilling apparatus, i.e., pitch, roll and distance to rock formations overlying or underlying the drilled stratum, with such indication being made available 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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Inventors: Cole, Charles F. (Ponca City, OK, US)
Elenburg, Jimmie H. (Ponca City, OK, US)

Application Number: 891679
Filing Date: 1978-03-30
Publication_date: 1979-08-21
Assignee: Continental Oil Company (Ponca City, OK)
Primary Class(es): 340/853.6 73/865.9, 175/24
Other Classes:
US Patent Ref:

3766787	Oct, 1973	Irvine	73/517.
3823787	Jul, 1974	Haworth et al.	175/41.
3888319	Jun, 1975	Bourn, Jr. et al.	175/24.

Other Refs:
Primary Examiner: Myracle, Jerry W.
Assistant Examiner:
Attorney: Miller; William J.