Tandem seal adapter for use with a wellbore tool, and wellbore tool string including a tandem seal adapter

A wellbore tool string comprising:

• a first perforating gun comprising:
• a first gun housing:
• a first gun electrical assembly provided in the first gun housing;
• and
• a first shaped charge provided in the first gun housing;
• a second perforating gun coupled to the first perforating gun, the second perforating gun comprising:
• a second gun housing;
• a second gun electrical assembly provided in the second gun housing;
• and
• a second shaped charge provided in the second gun housing;
• a tandem seal adapter (TSA) extending between the first perforating gun and the second perforating gun, the TSA comprising:
• a TSA body comprising a first end and a second end opposite the first end in an axial direction;
• and
• a bore extending through the TSA body from the first end to the second end;
• wherein
• the first perforating gun, the TSA, and the second perforating gun collectively define an interior space;
• the wellbore tool string further comprises a bulkhead assembly provided within the interior space;
• the bulkhead assembly comprises a first bulkhead electrical contact and a second bulkhead electrical contact;
• the first gun electrical assembly comprises a first gun electrical contact, the first gun electrical contact being in physical contact with the first bulkhead electrical contact;
• and
• the second gun electrical assembly comprises a second gun electrical contact, the second gun electrical contact being in physical contact with the second bulkhead electrical contact.

A wellbore tool string comprising:

• a first perforating gun comprising:
• a housing having a first end and a second end;
• a first gun electrical assembly;
• a detonator;
• a detonating cord operably coupled to the detonator;
• and
• a shaped charge operably coupled to the detonating cord;
• wherein the first gun electrical assembly, the detonator, the detonating cord, and the shaped charge are provided within the housing;
• and
• a tandem seal adapter (TSA) coupled to the first end of the first perforating gun housing, the TSA comprising:
• a TSA body comprising a first end and a second end opposite the first end in an axial direction;
• a bore extending through the TSA body from the first end to the second end;
• wherein the first perforating gun and the TSA collectively define an interior space;
• the wellbore tool string further comprises a bulkhead assembly provided within the interior space;
• the bulkhead assembly comprises a first bulkhead electrical contact;
• the first gun electrical assembly comprises a first gun electrical contact;
• the first gun electrical contact is in physical contact with the first bulkhead electrical contact;
• and
• the first gun electrical contact and the detonator being positioned between the first end of the perforating gun housing and the shaped charge.