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. 23, 2021

Filed:

May. 10, 2019
Applicants:

William W. Fleckenstein, Lakewood, CO (US);

Christopher Nordin Campbell, Boulder, CO (US);

Sean H. Bell, Windsor, CO (US);

Trevor Carson Antrim, San Antonio, TX (US);

Christian R. Peterson, Golden, CO (US);

Trevor Justin Thompson, Stratton, CO (US);

Frederico Miguel Rosendo, Golden, CO (US);

Tyler Mattson, Westminster, CO (US);

Inventors:

William W. Fleckenstein, Lakewood, CO (US);

Christopher Nordin Campbell, Boulder, CO (US);

Sean H. Bell, Windsor, CO (US);

Trevor Carson Antrim, San Antonio, TX (US);

Christian R. Peterson, Golden, CO (US);

Trevor Justin Thompson, Stratton, CO (US);

Frederico Miguel Rosendo, Golden, CO (US);

Tyler Mattson, Westminster, CO (US);

Assignee:

COLORADO SCHOOL OF MINES, Golden, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 23/14 (2006.01); E21B 4/00 (2006.01); E21B 4/18 (2006.01); E21B 47/12 (2012.01); E21B 17/02 (2006.01); E21B 4/04 (2006.01); B60B 33/00 (2006.01); B60B 19/00 (2006.01);
U.S. Cl.
CPC ...
E21B 23/001 (2020.05); E21B 4/006 (2013.01); E21B 23/14 (2013.01); B60B 19/003 (2013.01); B60B 33/0044 (2013.01); E21B 4/04 (2013.01); E21B 4/18 (2013.01); E21B 17/023 (2013.01); E21B 47/12 (2013.01);
Abstract

Embodiments of the present disclosure are generally related to a method and apparatus for performing operations in subterranean wellbores. More specifically, the present disclosure provides a novel downhole tractor for use in a wellbore. The tractor includes a body and a plurality of wheels. The wheels are configured to convert rotation of the body into linear motion along the wellbore. In one embodiment, the tractor is hydraulically driven. Additionally, or alternatively, the tractor may be electrically driven. Optionally, rotation of a string of pipe interconnected to the tractor drives the tractor.


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