Patent ID: 11920418
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A casing washout perforating gun assembly for use in a wellbore, the casing washout perforating gun assembly comprising:
a carrier gun body;
an uphole plurality of charges supported within the carrier gun body, the uphole plurality of charges having an uphole size or uphole explosive design to perforate uphole openings having uphole opening areas within a wellbore casing; and
a downhole plurality of charges supported within the carrier gun body, the downhole plurality of charges having a different downhole size or different downhole explosive design to perforate downhole openings having downhole opening areas within the wellbore casing, the downhole opening areas at least 20 percent less than the uphole opening areas.