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Specifications
API 7-1 Stabilizer with Back-reamingCan be played cutting during process of drilling and pull out
OD: 6" ~ 17 1/2"
API 7-1 Stabilizer with Back-reaming
The stabilizer with back-reaming is selecting the appropriate location and through special processing method to array few teeth as a cutting edge. In this way, this stabilizer can be played cutting when the process of drilling and pull out. During drilling process, forward and backward redressing can be played the role to repair and maintain the wall of a well, making trajectory of borehole as far as possible, more often than not leading to drilling difficultly because of hole shrinkage, and so on, at the moment, the forward and backward redressing of this stabilizer can be played cutting, to eliminate hole shrinkage phenomenon, thus saving time and costs for drilling.
Working O.D. |
Fishing O.D. |
I.D. |
Blade Wide |
Fishing Neck Length |
Blade Length |
OAL |
Cutter Qty. |
Up Conn. |
Down Conn. |
17-1/2(444.5) |
9(228.6) |
3(76.2) |
4-3/4(120.7) |
27-9/16(700) |
18-7/16(460) |
86-5/8(2200) |
18or30 |
7-5/8REG Box |
7-5/8REG Pin |
12-1/4(311.1) |
8(203.2) |
2-13/16(75) |
2-61/64(75) |
18-57/64(480) |
19-11/16(500) |
70-7/8(1800) |
18or30 |
6-5/8REG Box |
6-5/8REG Pin |
12-1/8(308) | |||||||||
12(304.8) | |||||||||
8-1/2(215.9) |
6-1/2(165.2) |
2-1/4(57.2) |
2-3/8(60) |
21-21/32(550) |
18-7/64(460) |
67-23/32(1720) |
18or30 |
NC46 Box |
NC46 Pin |
8-3/8(212.7) | |||||||||
8(203.2) | |||||||||
6(152.4) |
4-3/4) |
2(50.8) |
1-31/32 |
23-5/8(600) |
11-13/16(300) |
66-59/64(1700) |
18or30 |
NC38 Box |
NC38 Pin |
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