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:
May. 07, 1985
Filed:
Dec. 12, 1983
Applicant:
Inventors:
Phillip S Sizer, Farmers Branch, TX (US);
Don C Cox, Roanoke, TX (US);
Malcolm N Council, Richardson, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166384 ; 166 78 ; 166 85 ; 254 / ;
Abstract
Improved coil tubing injection apparatus for servicing wells by running coil tubing thereinto for circulating fluids through the well and having the ability to rotate the coil tubing for performing drilling operations. The apparatus can readily provide concurrent longitudinal and rotational movement of the coil tubing. Methods of servicing wells involving such movement of coil tubing are disclosed.