Taper Mills
Taper mills can be used for reaming out collapsed or stuck pipe such as casing and liners. They can also be used to clean up permanent whipstock windows, to mill through jagged or split guide shoes and to enlarge restrictions through retainers and adapters.
Procedures
The following procedure shall be used when milling with taper mills:
1. ROTATE while entering the fish.
Notes:
i. The weight on the mill shall be kept low (approximately 2.0 tonnes).
ii. . . .