High efficiency milling shoe isａspecialized tool for milling downhole fallen objects and repairing the top of fish.
External tooth milling shoe: It is used to repair fish top bore, scrap relict in casing and a little fash.
Internal tooth milling shoe: It is used to repair tubing, drilling rod body and damaged fish top, etc.
Washover milling shoe: It is used to washover drill cuttings plugging objects or collapse plugging objects
Specification of Washover Milling Shoe
|
(in)
Specification
|
(mm)
O. D. Of Outer Barrel
|
(mm)
O. D. Of Mill Shoe
|
(mm)
Suitable Well Diameter
|
(mm)
Max Size of Washover
|
|
7 5/8″
|
194
|
205
|
212.73
|
162
|
|
7 5/8″
|
200
|
208
|
215.90
|
170
|
|
8 1/8″
|
206
|
215
|
215.90
|
178
|
|
8 5/8″
|
219
|
230
|
244.00
|
184
|
|
9 5/8″
|
245
|
255
|
266.70
|
212
|
|
10 3/4″
|
273
|
283
|
290.45
|
238
|