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. 18, 1981
Filed:
May. 07, 1979
Kerry G Kirkland, Houston, TX (US);
Armco Inc., Middletown, OH (US);
Abstract
Method and apparatus for remote installation and retrieval of underwater well apparatus and servicing of underwater wells without diver assistance by use of a remotely operated tool carried by a handling string including a composite lower joint which contains both smaller flow passages for conveying pressure fluid to the tool and larger passages for communicating with pipe in the well, the composite joint being of sufficient length to extend completely through the blowout preventers when the tool is in operative position and having a right cylindrical outer surface against which the blowout preventers can seal regardless of the rotational position of the composite joint. The invention is especially useful in connection with wells having multiple strings of tubing.