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:
Jan. 27, 1976
Filed:
Dec. 18, 1974
Amareswar Amancharla, Dallas, TX (US);
Carter R Young, Lewisville, TX (US);
Otis Engineering Corporation, Dallas, TX (US);
Abstract
A well tubing system for releasably coupling lower tubing strings with upper tubing strings in a well bore without rotation from the surface including a well packer on a plurality of lower tubing strings, a first flow coupling and guide sleeve on the upper end of the packer, and a second flow coupling and guide head on the lower ends of the upper tubing strings. The upper tubing strings and guide head are connected with and disconnected from the guide sleeve on the packer by longitudinal motion only. The guide head has spiral guide surfaces leading to a vertical orienting slot. The guide sleeve includes a guide lug which engages the guide head guide surfaces and slot to rotate the head and upper tubing strings to the desired orientation. In alternate forms of the invention means are provided for the running and retrieving of either one or both of the upper tubing strings independently of the other of the strings after the initial connection of the guide head into the guide sleeve in the well bore.