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:
Aug. 27, 1991
Filed:
Oct. 15, 1990
Applicant:
Inventors:
William A Rehm, Houston, TX (US);
Thomas D Trunk, Sugarland, TX (US);
Timothy D Baseflug, Houston, TX (US);
Steve L Cromwell, Houston, TX (US);
Grady A Hickman, The Woodlands, TX (US);
Ralph D Nickel, Spring, TX (US);
Michael S Lyon, Houston, TX (US);
Assignee:
Becfield Horizontal Drilling Services Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175 61 ; 175 62 ; 175 74 ; 175 75 ; 175408 ;
Abstract
A method and apparatus for drilling highly deviated wells is disclosed. A drilling assembly is attached to a drill string. The drilling assembly includes a bent sub, a pony collar attached to the bent sub, a motor with a bent housing, and a bit. Improved survey collars and bits are also disclosed.