Abrado, Inc.

Alexander Esslemont

Benny Silguero

John Chrysostom Wolf

Marshal Harris

Philip Schultz

Paul Howlet

An instrument for the mechanical removal of corrosive buildup, deposits or scale from within a wellbore. A tubing-conveyed scraping blade and/or other abrading devices () has a collapsible maximum outer diameter by using a multi-bar mechanism () to ensure physical contact with corrosive buildup, deposits or scale on surfaces of a surrounding wellbore, oil and gas tubular, or drilling/production marine riser (and, in particular, inner surfaces thereof). The multi-bar mechanism allows for a wide range of motion irrespective of the direction of loading and variable maximum outer diameter to clean corrosive buildup, deposits or scale from tubular goods with unknown configurations and/or dimensions.

Multi-bar scraper for cleaning marine risers and wellbores

A validation tool () has a central body member () with threaded connections at each end (), as well as a central bore () extending there through. At least one battery powered video camera () or other optical data sensor is disposed along an outer surface of the body member and can be selective activated and de-activated. Optional mirror(s) () are provided to permit optimum viewing of the surrounding environment, while visual images and/or other sensed data is recorded and stored on at least one data storage media. The validation tool can be used for various purposes including wellbore integrity and verification that drilling mud has been fully displaced with completion fluid in a wellbore.

Growing community of inventors

Houston, TX, United States of America

Alexander Esslemont