STABILIZERS
Stabilizers
Preventing Undesirable Deviation with Stabilizers
Stabilizers are used to prevent undesirable deviation of the drill string. Typically, one or two stabilizers are placed in the bottom-hole assembly (BHA) to increase drill string stability. Additional stabilizers can be added to the drill string to further improve BHA solidness and minimize wellbore deviation.
Stabilizers are used to prevent undesirable deviation of the drill string. Typically, one or two stabilizers are placed in the bottom-hole assembly (BHA) to increase drill string stability. Additional stabilizers can be added to the drill string to further improve BHA solidness and minimize wellbore deviation.
| Hole Size Dimensions (in) | Fishing Neck (Length / OD) - in | Length Wall Contact (in) | Overall Length (Near Bit / String) - in | Blade Angle Open Design | Blade Angle Tight Design 360° Coverage | Blade Width (in) | Approx Weight (lbs) |
|---|---|---|---|---|---|---|---|
| 6 | 28 / 4-3/4 | 16 | 69 / 72 | 15° | 15° | 2-3/16 | 320 |
| 8-1/2 | 28 / 6-1/2 | 16 | 69 / 73 | 15° | 23° | 2-3/8 | 717 |
| 12-1/4 | 30 / 8 | 18 | 77 / 82 | 15° | 27° | 3-1/2 | 1,146 |
| 12-1/4 | 30 / 9-1/2 | 18 | 77 / 82 | 15° | 27° | 3-1/2 | 1,477 |
| 16 | 30 / 9-1/2 | 18 | 87 / 92 | 15° | 35° | 4-1/2 | 2,227 |
| 17-1/2 | 30 / 9-1/2 | 18 | 89 / 93 | 15° | 38° | 4-1/2 | 2,315 |
| 26 | 30 / 9-1/2 | 18 | 98 / 103 | 15° | 43° | 5 | 3,417 |