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:
Mar. 16, 1993
Filed:
Aug. 06, 1991
Joseph H Hynes, Houston, TX (US);
Cooper Industries, Inc., Houston, TX (US);
Abstract
A tubing hanger assembly having a metal-to-metal seal assembly for sealing the annulus between the tubing hanger assembly and an outer casing hanger assembly. The metal-to-metal seal assembly includes a static metal-to-metal seal for sealing with the tubing hanger assembly and a dynamic metal-to-metal seal for sealing with the casing hanger assembly. The static metal-to-metal seal sealingly engages the body of the tubing hanger assembly as a part of the factory assembly procedure. Thus, the static metal-to-metal seal may be tested at the factory and replaced if leakage is detected. The dynamic metal-to-metal seal has a non-sealing position when run into the well and a sealing position upon actuation downhole. The metal-to-metal seal assembly includes actuation means engageable with the outer casing assembly that actuates the dynamic metal-to-metal seal from the non-sealing position to the sealing position.