Instrument for Centering Tools Within a Wellbore

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20120205093A1
SERIAL NO

13027020

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A downhole controller for aligning downhole tools including a body extending between an upstream portion and a downstream portion, wherein a longitudinal axis of the body is coincident with the longitudinal axis of a borehole. First and second springs are disposed proximate the upstream and downstream portions, respectively. A first bulkhead is disposed around the upstream portion and a second bulkhead is disposed around the downstream portion. The first bulkhead having a first plurality of ribs extending outwardly therefrom to define an upper recess spaced from a middle recess and the second bulkhead having a second plurality of ribs extending outwardly therefrom to define a bottom recess. A linkage bar system is coupled to the upper, middle, and bottom recesses disposed around the body, wherein the linkage bar system includes first through third linkage bars, a roller support plate, and a roller. A coupling is coupled to the body and adapted to suspend a tool from the body, wherein the linkage bar system is adapted to compress of at least one of the first and second springs when the roller is obstructed by an interval in a borehole.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SCIENTIFIC DRILLING INTERNATIONAL INC16701 GREENSPOINT PARK DRIVE SUITE 200 HOUSTON TX 77060

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Paszek, Nathan Atascadero, US 2 13

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