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:
Jul. 20, 2004
Filed:
Nov. 07, 2002
Albert Demny, Houston, TX (US);
Paul Horton, Jr., Lafayette, LA (US);
Seaboard International, Inc., Houston, TX (US);
Abstract
In order to prevent potential electrical hazards associated with supplying power downhole, a hanger is provided for either casing or tubing strings, or a plurality of casing or tubing strings, that electrically insulates the internal suspension mechanism of the hanger from the hanger's external seal. Electrical power is typically transferred through a hanger by way of the internal suspension mechanism. If electrical umbilicals are used, connecting devices may be located within the internal suspension mechanism for connecting an upper and lower umbilical and transferring power trough the hanger. If a rigid tubular conductor is used, the suspension mechanism may be ported to allow the passage of electrical feedthroughs or, in the case of tubing hangers, the tubing itself may be charged with electrical power. By insulating the suspension mechanism from the external seal potential electrical hazards are eliminated.