Robert S Wojciechowski

US Patent:

8640769, Feb 4, 2014

Filed:

Sep 7, 2011

Appl. No.:

13/226810

Inventors:

Roddie R. Smith - Aberdeen, GB
Ronald D. Williams - Houston TX, US
Robert Wojciechowski - Cypress TX, US

Assignee:

Weatherford/Lamb, Inc. - Houston TX

International Classification:

E21B 17/02

US Classification:

1662422, 1662426, 166243

Abstract:

Concentric control lines have an outer line disposed about one or more inner lines. Encapsulated together, the lines only require one penetration through the wellhead to extend downhole. At the wellhead, the lines communicate with an operating system, which can provide hydraulics, electric power, signals, or the like for downhole components. Beyond the wellhead, the concentric lines extend along the tubing to a manifold. The outer line sealably terminates at the manifold's inlet, while the inner conduit passes out an outlet with a sealed fitting to connect to a downhole component. A downhole line couples to an outlet of the manifold and communicates internally with the outer conduit terminated at the manifold's inlet. This downhole line can then extend to the same downhole component or some different component.