The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1993
Filed:
Dec. 22, 1989
Applicant:
Inventor:
Bob J Patton, Dallas, TX (US);
Assignee:
Patton Consulting, Inc., Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
175 24 ; 175 27 ; 175 45 ; 175 61 ;
Abstract
An improved method and apparatus for automatically controlling the direction of advance of a rotary drill to produce a borehole profile substantially as preplanned with minimal curvature while maintaining optimum drilling performance. The system is capable of storing a planned path for the borehole. Information relating to the profile of the actual drill path is compared to the planned path and an appropriate correction signal is generated and used to cause the borehole to be drilled in accordance with the planned path.