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Special stabilizer with reamer and back-reamer is an important tool in the drilling engineering to prevent well deviation. Apply to stabilize drilling tools in the drilling process of oil, gas and geo
Special stabilizer with reamer and back-reamer is an important tool in the drilling engineering to prevent well deviation. Apply to stabilize drilling tools in the drilling process of oil, gas and geological exploration. It can increase bit life, drilling speed and well quality. There are several cutting teeth special fixed at both end of the blades. In this way, this stabilizer is cutting bidirectional when drilling and pull out, to achieve the effect of repairing and maintaining the wall of a well, making trajectory of well bore as possible as ideal condition, even preventing the phenomenon of dogleg. Especially when pull out, it always hard to pull out of the hole because of hole necking etc. At this moment, the cutting function of back-reamer could eliminate hole necking phenomenon, thus to save time and costs for drilling.
Hole Size | Top Connection | Bottom Connection | Fishing Neck OD | Fishing Neck Length | ID | Blade Axial Width | Blade Length | Teeth Qty. | OAL |
444.5 (17 1/2) | 7 5/8 REG | 7 5/8 REG | 228.6 (9) | 700 (27 9/16) | 76.2 (3) | 121 (4 3/4) | 460 (18 7/64) | 18 or 30 | 2200 (86 39/64) |
311 (12-1/4) | 6 5/8 REG | 6 5/8 REG | 203.2 (8) | 500(19 11/16) | 71.4 (2 13/16) | 75 (2 61/64) | 460 (18 7/64) | 18 or 30 | 1800 (70 7/8) |
215 (8 1/2) | NC50 | NC50 | 165.1 (6 1/2) | 550(21 21/32) | 57.2 (2 1/4) | 60 (2 3/8) | 460 (18 7/64) | 18 or 30 | 1720 (67 23/32) |
152.4 (6) | NC38 | NC38 | 120.7 (4 3/4) | 550(21 21/32) | 50.8（2） | 50.8 (2) | 300 (11 13/16) | 18 or 30 | 1600 (63) |
