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.
Patent No.:
Date of Patent:
Feb. 09, 2021
Filed:
Mar. 31, 2020
Perfx Wireline Services, Llc, Denver, CO (US);
Shelby L. Sullivan, Minot, ND (US);
Aaron Holmberg, Omaha, NE (US);
Kelly J. Sullivan, Pengilly, MN (US);
PerfX Wireline Services, LLC, Denver, CO (US);
Abstract
A bulkhead assembly for transmitting current to a downhole tool such as a perforating gun. The bulkhead assembly comprises a tubular bulkhead body having a bore therein. The bulkhead assembly also includes an electrical contact pin. The contact pin comprises a shaft having a first end and a second end. The shaft is fabricated substantially from brass and comprises a plurality of grooves. At the same time, the bore comprises a profile for mating with and receiving the plurality of grooves. This grooved, mating arrangement increases shear strength of the bulkhead assembly. Preferably, a first end of the electrical contact pin is in electrical communication with a wire within a wellbore. The wire transmits electrical signals from an operator at the surface. The shaft comprises a conical portion proximate the first end that frictionally fits into a mating conical profile of the bore. A tandem sub having an improved electrical communication is also provided herein.