Patent · US Active

Perforating gun assembly and wellbore tool string with tandem seal adapter

US11661823B2 · kind B2 · utility

0Cited by

349References

13Claims

0Family size

Assignee

DynaEnergetics Europe GmbH · DE

Inventors

Frank Haron Preiss · Bonn, DE
Thilo Scharf · Letterkenny, IE
Liam McNelis · Bonn, DE
Eric Mulhern · Edmonton, CA
David C. Parks · Calgary, CA
Christian Eitschberger · Munich, DE

Key dates

Filing date	Jun 21, 2021
Grant date	May 30, 2023
Priority date	—
Expiry date	Aug 9, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42D1/043
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A perforating gun may include a gun carrier extending in an axial direction and a tandem seal adapter (TSA). The gun carrier having a maximum outer carrier diameter. The TSA may include a first TSA region having a first TSA outer diameter, a second TSA region having a second TSA outer diameter, and a shoulder surface formed between an outer surface of the first TSA region and an outer surface of the second TSA region. The second TSA outer diameter may be larger than the first TSA outer diameter and smaller than the maximum outer carrier diameter. A portion of the gun carrier may abut with the shoulder surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.