CPC E21B 43/1185 (2013.01) [E21B 43/119 (2013.01); E21B 43/11855 (2013.01); F42C 19/06 (2013.01); F42D 1/02 (2013.01); F42D 1/04 (2013.01); F42D 1/043 (2013.01)] | 20 Claims |
1. A wellbore tool string comprising:
a first perforating gun having a first gun carrier extending along a longitudinal axis;
a first shaped charge carrier provided within the first gun carrier, the first shaped charge carrier configured for receiving a first shaped charge;
a second perforating gun having a second gun carrier extending along the longitudinal axis;
a second shaped charge carrier provided within the second gun carrier, the second shaped charge carrier configured for receiving a second charge;
a tandem seal adapter (TSA) in sealing engagement with the first gun carrier, the TSA comprising:
a TSA body and a first seal element provided on an outer surface of the TSA body;
a bore extending through the TSA body; and
a bulkhead provided within the bore and configured to provide electrical connectivity through the bore, the bulkhead comprising:
an outer body provided within the bore and having a bulkhead surface perpendicular to the longitudinal axis in contact with the TSA, wherein the outer body is non-conductive; and
an electrical contact assembly extending through the outer body, the electrical contact assembly comprising a first electrical contact provided at a first end of the outer body; wherein:
the first perforating gun and the second perforating gun are coupled to each other at a coupling region;
the first gun carrier comprises first threads formed on the first gun carrier at a first end of the first gun carrier;
the second gun carrier comprises second threads formed on the second gun carrier at a first end of the second gun carrier;
the first threads are engaged with the second threads in the coupling region; and
the TSA is positioned inside the first gun carrier and inside the second gun carrier such that the first seal element, the first threads, and the second threads intersect with a common plane that is perpendicular to the longitudinal axis.
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