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.

Date of Patent:
Feb. 22, 2000

Filed:

Nov. 14, 1997
Applicant:
Inventors:

Ronald E Pringle, Houston, TX (US);

Arthur J Morris, Magnolia, TX (US);

Assignee:

Camco International Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166 651 ; 166120 ; 166129 ; 1662421 ; 1662423 ;
Abstract

An improved apparatus for transmitting signals through a well tool is provided. In a broad aspect, the present invention is a communication conduit in a well tool comprising: a cylindrical mandrel having a longitudinal bore therethrough, an inner diameter, an outer diameter, and an outside circumference; a well tool attached to the outside circumference of the cylindrical mandrel; and at least one signal transmitting passageway positioned in the mandrel between the inner diameter and the outer diameter. In a specific embodiment, the well tool may be a packer. The at least one signal transmitting passageway may be used as a carrier for electrical or fiber optic conductors, or it may be a pressure retaining member whereby pressurized hydraulic fluid may be passed through to a device below the well tool without interruption.


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