POSC Specifications: Epicentre Version 3.0 Logical Data Model

UNDERREAMER

(Rules) (Express)

A facility which can enlarge an existing hole. Unlike a hole opener, the arms on which the cutting structure is mounted are retractable. It can therefore be passed through a small diameter restriction before the arms are extended and underreaming operations begin.


Local rules:

Supertype path(s):

Entity consolidated into table WELLBORE_DEVICE.

Referenced in Diagrams:


Generated on Tue Jul 10 15:55:26 2001
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