Expansion of blades into operating position is provided by the effect of differential fluid pressure in mill body

Casing Section Milling Tools

Expandable mill FKR is designed for continuous casing section milling throughout the diameter in any interval of wellbore. Expansion of blades, reinforced with high quality composite material, into operating position is provided by the effect of differential fluid pressure between flowbore and wellbore annulus.

Delivery set of expandable mills FKR includes back pressure valve which prevents tool from sludging during round-trip operations and interchangeable blades easily replaceable in rig conditions.

Tool series

Casing size, mm

Body / centralizer diameter, mm

Opening diameter, mm

Connection threads

GOST

28487–90

API

FKR-114-1

114

88 / 94

142

Z-73

NC-26

FKR-140-1

140

108 / 116

164

Z-86

NC-31

FKR-146-1

146

114 / 124

170

Z-86

NC-31

FKR-168-1

168

138 / 141

212

Z-102

NC-38

FKR-178-1

178

148 / 150

223

Z-102

NC-38

FKR-194-1

194

154 / 164

223

Z-102

NC-38

FKR-219-1

219

185 / 187

270

Z-147

5 ½ FH

FKR-245-1

245

185 / 212

290

Z-147

5 ½ FH