Pilot mill
The pilot mill is designed for milling stuck or jammed tubing, drill pipe, and other downhole obstructions during workover and remediation operations in oil, gas, and geological exploration wells.
The mill body and pilot section are manufactured from high-strength alloy steel. The mill integrates two types of cutting structures: carbide cutting inserts for aggressive metal removal, and cutting-abrasive matrix composed of crushed tungsten carbide embedded in a nickel-containing brass. The upper end features a standard threaded connection for integration into the drill string. Drilling fluid circulates through ports in both the pilot section and the end face.
Characteristics:
Designation
PM-95/65
PM-114/47
PM-118/47
PM-120/47
PM-140/57
PM-140/74
PM-140/90
PM-180/100
PM-185/40
PM-185/90
PM-190/143
PM-205/80
PM-205/110
PM-210/110
PM-230/130
OD, mm
95
114
118
120
140
140
140
180
185
185
185
190
205
210
230
ID, mm
65
47
47
47
74
74
90
100
40
90
143
80
110
110
130
Length of the pilot section, mm
360
360
360
360
360
360
360
360
360
360
360
360
360
360
360
Thickness of working surface, mm
20
20
20
20
20
20
20
20
20
20
20
20
20
30
30
Rotary speed, rpm, max
150
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Axial load, kN
10...20
10...20
10...20
10...20
22...48
22...48
22...48
22...48
22...48
22...48
22...48
22...48
22...48
22...48
22...48
Thread*
Z-65
Z-76
Z-76
Z-76
Z-86
Z-86
Z-86
Z-102
Z-102
Z-133
Z-133
Z-133
Z-133
Z-133
Z-133
