EBOS
Definition
Emergency Back-Out Sub
EBOS means Emergency Back-Out Sub. A sub sometimes run in a casing string, which will allow the retrieval, re-space out, re-running and re-connection of the casing string above it. This could be required when a casing…
A sub sometimes run in a casing string, which will allow the retrieval, re-space out, re-running and re-connection of the casing string above it. This could be required when a casing string gets stuck off bottom.
✓ Verified term