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Drilling Stabilizer
● Standard: API 7-1 and NS-1
● Category: Integral Spiral Blade Stabilizer, Replaceable Sleeve Stabilizer, Float Valve Stabilizer, Non-rotating Stabilizer, Spherical Stabilizer, Non-Magnetic Stabilizer
● Material: AISI 4145H Mod, Non-magnetic
● Hard Facing: HF1000,HF2000,HF3000,HF4000,HF5000
● Special Feature: Stabilizer Forgings are available. Pin with SRG, Box with Bore back. Cold Rolled and Phosphate.
Description
The Drilling Stabilizer is a key component used during drilling operations to provide borehole stability and optimize drilling efficiency, It is placed at appropriate locations along the drill string to form the bottom hole assembly.
Vigor high-quality stabilizers are manufactured according to API 7-1 and NS-1 standards and are available in various categories including Integral Spiral Blades, Replaceable Sleeves, Float Valves, and Non-rotating, Spherical, and Non-Magnetic materials.
Vigor's stabilizer bodies are made from AlSI 4145H Mod Alloy Steel, fully heat treated to 285-341Brinell hardness 52 joules min. impact strength.
Drilling stabilizers are customized for specific applications with a range of O.D sizes, blade lengths, and hard-facing including HF1000(Welding YD solder), HF2000(Hard alloy bars and YD solder), HF3000(Hard alloy strip), HF4000(Hard alloy column), and HF5000. The hard facing protects the stabilizer blades from abrasion and erosion during drilling. Selecting the optimal hard-facing method and materials depends on the expected formation characteristics and required service life. Our engineering team can recommend customized hard-facing solutions to extend stabilizer performance in demanding drilling operations.
Special Feature of Vigor drill collar stabilizer
(1)Stabilizer Forgings are available.
(2)APl stress relief groove Pin with SRG & bore back on Box are coated with APl thread compound.
(3)All connections are cold rolled and phosphate coated according to NS-1 if required.
(4)Lifting bail thread protectors on both ends are available upon request.
(5) Downhole Stabilizer Standard sizes as following table
Technical Parameters
| Hole Size(In.) | Material | Overall Length(In.) | Fish Neck Length(In.) | Angle (Approx.) |
Blade Width (In.) | Hardfacing | Blade Length(In.) | Spiral Type | Bottom Pin Connect | Top Box Connect | Blade size (In.) | I.D. size | Body O.D. Size (In.) |
| 6 | 4145 H MOD | 72 | 28 | 30 | 2-1/4 | HF1000-HF5000 | 16 | 270-360 | 3-1/2 IF | 3-1/2 IF | 6 | 2-1/4 | 4-3/4 |
| 8-1/2 | 72 | 28 | 30 | 2-3/8 | HF1000-HF5000 | 16 | 270-360 | 4-1/2 IF | 4-1/2 IF | 8-1/2 | 2-13/16 | 6-3/4 | |
| 9-7/8 | 72 | 28 | 30 | 2-3/8 | HF1000-HF5000 | 16 | 270-360 | 4-1/2 IF | 4-1/2 IF | 9-7/8 | 2-13/16 | 6-3/4 | |
| 10-1/2 | 90 | 30 | 30 | 3 | HF1000-HF5000 | 18 | 270-360 | 6-5/8 REG | 6-5/8 REG | 10-1/4 | 2-13/16 | 8-1/4 | |
| 12-1/4 | 90 | 30 | 30 | 3 | HF1000-HF5000 | 18 | 270-360 | 6-5/8 REG | 6-5/8 REG | 12-1/4 | 2-13/16 | 8-1/4 | |
| 14-3/4 | 90 | 30 | 30 | 3-1/2 | HF1000-HF5000 | 18 | 210-270 | 7-5/8 REG | 7-5/8 REG | 14-3/4 | 3 | 9-1/2 | |
| 16 | 90 | 30 | 30 | 4 | HF1000-HF5000 | 18 | 210-270 | 7-5/8 REG | 7-5/8 REG | 16 | 3 | 9-1/2 | |
| 17-1/2 | 90 | 30 | 30 | 4 | HF1000-HF5000 | 20 | 210-270 | 7-5/8 REG | 7-5/8 REG | 17-1/2 | 3 | 9-1/2 | |
| 20 | 100 | 45 | 45 | 4 | HF1000-HF5000 | 20 | 150-210 | 7-5/8 REG | 7-5/8 REG | 20 | 3 | 9-1/2 | |
| 24 | 100 | 45 | 45 | 4 | HF1000-HF5000 | 20 | 150-210 | 7-5/8 REG | 7-5/8 REG | 24 | 3 | 9-1/2 | |
| 26 | 100 | 45 | 45 | 4 | HF1000-HF5000 | 20 | 150-210 | 7-5/8 REG | 7-5/8 REG | 26 | 3 | 9-1/2 | |
| 28 | 110 | 45 | 45 | 4 | HF1000-HF5000 | 20 | 150-210 | 7-5/8 REG | 7-5/8 REG | 28 | 3 | 9-1/2 | |
| 36 | 110 | 45 | 45 | 4 | HF1000-HF5000 | 24 | 150-210 | 7-5/8 REG | 7-5/8 REG | 36 | 3 | 9-1/2 |
※ This table includes some required standard sizes. Vigor can provide most sizes on request.
Benefits of drill stabilizer
1. Optimized blade design provides excellent borehole contact for maximum drilling stability and control, even in challenging formations;
2. Robust one-piece steel body and precisely machined blades withstand high shock loads, abrasion, and corrosive drilling fluids;
3. Interchangeable sleeves or integral blades enable fast maintenance and replacement when worn;
4. Variety of hard-facing materials and specialized coatings extend service life in abrasive formations;
5. Non-magnetic options available for surveying and MWD/LWD applications;
6. Custom stabilization solutions to improve performance based on specific drilling environments and applications.
application
Using a Downhole Stabilizer can help prevent borehole deviation when drilling vertical wells and control wellbore trajectory when drilling directional wells, improving drilling stability and extending bit life, which is especially important for PDC bits.
- Directional drilling - Provides stability for precise wellbore placement and trajectory control
- Extended reach drilling - Minimizes borehole tortuosity and vibration in long lateral sections
- Drilling in shale or other unstable formations - Prevents borehole collapse, washouts, tight spots
- Offshore drilling - Optimizes stability for challenging offshore environments
- Well logging and surveying - Non-magnetic stabilizers permit uninterrupted formation evaluation
FAQ
Q: What materials are available?
A: We offer stabilizers in 4145H Mod steel and non-magnetic monel, Inconel, or steel alloys.
Q: What hard-facing options do you offer?
A: We apply specialized HF1000 through HF5000 coatings to match the required abrasion resistance.
Vigor is a specialized manufacturer and supplier of premium drilling stabilizers with extensive inventory, complete certifications, and the engineering expertise to provide optimized solutions for any drilling operation. Contact us to discuss your stabilizer requirements. Our global sales team provides prompt replies and rapid delivery times to customers worldwide.
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