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Milling tools
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High Efficiency Grind (mill) shoes

    The mill shoe include flat-bottom mill shoe, concave-bottom mill shoe, tapered bottom mill shoe, pilot mill shoepearCshaped mill shoe, washover shoe, high effective cone mill shoe. The flat-bottom mill shoe is a normal tool for grinding downhole small catches and repairing the fish top. The concave-bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.The pilot mill shoe is used to grind the fallen objects which are with internal hole and shaking downhole. The tapered bottom mill shoe is used to repair and maintain small deformed location and clean wall sundries.

Technical parameters and specifications

O.D.(mm) Thread connection Suitable hole size (mm)
89 NC26, 2 3/8REG 95.2~101.6
98 107.9~114.3
110 NC31, 2 7/8REG, 3 1/2REG, 117.5~127.0
121 130.0~139.7
130 142.9~152.4
140 NC38, 3 1/2REG, 4 1/2REG, 155.6~165.1
156 168.0~187.3
178 190.5~209.5
200 NC50, 4 1/2REG, 212.7~241.3
232 244.5~269.9.
257 6 5/8REG, 273.0~295.3
279 298.5~317.5
295 320.6~346.1
330 349.3~406.4
381 406.4~444.5
406 7 5/8REG, 431.8~508.0
432 457.2~533.4
534 558.8~660.0
686 711.2~863.6

Technical parameters and specifications for pilot mill shoe

O.D.(mm) O.D. of the milled tube(mm) Wing length
(mm)
Thread connection Suitable hole size (mm)
97 73-89 150 NC26 107.9~114.3
121 90-102 NC31, 2 7/8REG, 3 1/2REG, 130.0~139.7
130 100-160 200 142.9~152.4
140 110-120 155.6~165.1
156 127 3 1/2REG, 168.0~187.3
178 158-168 4 1/2REG, 190.5~209.5
200 168-178 212.7~241.3
232 194 244.5~269.9
257 210-219 250 6 5/8REG, 273.0~295.3
279 220-230 298.5~317.5
295 240-246 300 320.6~346.1
330 273 349.3~406.4
381 320 406.4~444.5

Technical parameters and specifications for washover shoe

O.D.(mm) I.D.(mm) Length
(mm)
MIn-Hole size
(mm)
Max washover string
(mm)
117 99.57 500-1000 120.65 88.90
136 108.61 146.05 101.60
145 124.26 155.58 120.65
121.36 155.58 117.48
118.62 155.58 114.30
177 150.39 187.33 142.88
190 159.41 200.03 152.40
202 174.63 212.73 168.28
171.83 212.73 165.10
168.28 212.73 161.93
205 184.15 215.90 177.80
209 187.58 219.08 180.98
234 198.76 244.48 190.50
193.68 244.48 187.33
240 207.01 250.83 200.03
256 224.41 266.70 215.90
220.50 266.70 212.73
288 252.73 298.45 244.48
247.90 298.45 238.13
313 276.35 323.85 266.70
273.61 323.85 263.53
355 317.88 365.13 307.98
434 381.25 444.50 368.30
498 448.44 508.00 438.15
574 525.65 584.20 479.43

Copyright:Mudanjiang Construction Material Petroleum Machinery Co.,Ltd    HEI ICP 11006197 No. -1    Technical support:Mudanjiang excellence network company