Ratonera

ADVERTISEMENT
From SEG Wiki
Revision as of 18:36, 8 December 2017 by ANDRES0710 (talk | contribs) (Created page with "Ratonera")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:
English • ‎español


1. A hole in the rig floor 30 to 35 ft deep into which the kelly and swivel are placed when hoisting operations are in progress. 2. A hole of smaller diameter that is drilled in the bottom of the main hole. 3. To reduce the size of the wellbore and drill ahead.