Stacy F Johnson

US Patent:

7683802, Mar 23, 2010

Filed:

Oct 16, 2007

Appl. No.:

11/873040

Inventors:

Raghu Madhavan - Sagamihara, JP
Bruce W. Boyle - Sugar Land TX, US
Brian Clark - Sugar Land TX, US
Stacy L. Johnson - Houston TX, US
David Santoso - Sagamihara, JP
Lise Hvatum - Katy TX, US

Assignee:

IntelliServ, LLC - Houston TX

International Classification:

G01V 3/00

US Classification:

3408548, 3408544, 3408551, 1662426, 439950

Abstract:

A wired drill pipe segment includes a tubular body having an axial bore, a box end disposed at a first end of the tubular body having a first core material disposed in the box end, a pin end disposed at a second end of the tubular body having a second core material disposed in the pin end, a first coil winding wound around at least a portion of the first core material and a second coil winding wound around at least a portion of the first core material, a third coil winding wound around at least a portion of the second core material and a fourth coil winding wound around at least a portion of the second core material, a first conductor connected to the first coil winding and the third coil winding and extending through the tubular body, and a second conductor connected to the second coil winding and the fourth coil winding and extending through the tubular body.

US Patent:

7777644, Aug 17, 2010

Filed:

Nov 28, 2006

Appl. No.:

11/564024

Inventors:

Rahgu Madhavan - Houston TX, US
Bruce W. Boyle - Sugar Land TX, US
Brian Clark - Sugar Land TX, US
Stacy L. Johnson - Houston TX, US
David Santoso - Sugar Land TX, US
Lise Hvatum - Katy TX, US

Assignee:

InatelliServ, LLC - Houston TX

International Classification:

G01V 3/00

US Classification:

3408544, 3408548, 367 82, 166380, 175171

Abstract:

A wired drill pipe for a drill string of a downhole tool positioned in a wellbore penetrating a subterranean formation is provided. The wired drill pipe includes a drill pipe, a cable and a wire retainer. The drill pipe has a slot at each end thereof. The slots are adapted to receive at least one transformer. The drill pipe has an inner surface defining a passage for the flow of mud therethrough. The cable extends from the transformer into the passage of the drill pipe. The wire retainer is positioned on the inner surface of the drill pipe. The wire retainer is adapted to secure the cable therein.