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:
Jul. 28, 2026

Filed:

Dec. 07, 2023
Applicant:

Quantum Energy Technologies Llc, Houston, TX (US);

Inventors:

David A. Switzer, Calgary, CA;

Danick R. J. Normandeau, Calgary, CA;

Kyle W. Twynam, Calgary, CA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/02 (2006.01); E21B 47/13 (2012.01); F16L 15/08 (2006.01);
U.S. Cl.
CPC ...
E21B 17/0285 (2020.05); E21B 47/13 (2020.05); F16L 15/08 (2013.01);
Abstract

An external gap assembly for a gap sub includes a plurality of non-conductive spacer rings and a plurality of high-strength conductive spacer rings arranged in an alternating pattern about an exterior of the gap sub, a non-conductive external gap seal sleeve disposed beneath the spacer rings that electrically insulates the conductive spacer rings from upper and lower conductive portions of the gap sub, and a plurality of seals disposed between an internal diameter of an upper conductive portion and an interior diameter of a lower conductive portion of the gap sub and the non-conductive external gap seal sleeve. Advantageously, the resistance of the non-conductive gap may be controllably increased, compression and torque on the stack may be controlled, and conductive drilling fluids may be prevented from penetrating the gap sub, thereby enhancing transmission efficiency.


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