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:
Oct. 06, 1981
Filed:
Oct. 04, 1978
Pierre A Beynet, Tulsa, OK (US);
James E Lucksinger, Carbondale, CO (US);
Martin B Jansen, Jr, Houston, TX (US);
Standard Oil Company (Indiana), Chicago, IL (US);
Abstract
Special J-slot connectors have been devised for connecting concentric riser pipes and casing from a structure at the surface of a body of water to corresponding concentric casings set in the sea floor. This can be called a 'tieback tool' for sealingly securing a first tubular member suspended from a vessel floating on a body of water to a casing hung in the wellbore in the bottom of the body of water. Special multiple axially aligned J-slot means are also provided together with means to assure proper 'makeup' of the J-slots. Means are also provided for proper alignment of circumferentially spaced J-slot connectors. Special self-emergizing seals are also disclosed.