Jiyuan City Kunyuan Forging Co., Ltd
Jiyuan City Kunyuan Forging Co., Ltd Excellence, Focus on quality, Precision forging, Credit uppermost !
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API Drilling Tools Near Bit Stabilizer
Integral spiral blade stabilizer is manufactured from one solid bar of AISI 4145H modifed steel, usually have 3-blade or 4-blade. Professional heat-treatment process gurantees the mechanical property meet the requirements of API SPEC7-1. Hardness of 285-341HB can be assured both 1” beneath the outer surface and 4 quadrant across the neck OD.
Specifications:
1. Product: integral spiral blade stabilizer
2. Raw material: AISI 4145H MOD or non magnetic steel
3. Types: Drill String type and Near bit type.
4. Packing: anti-rust package, steel shelf with plastic bags
5. Standard: API Spec 7-1 or SY/T5051-91Standard.
6. Delivery time: within 30 days after receiving the deposit
7. Delivery condition: as customers' requirement, semi-finished forging or finished product
8. Stress Relief Groove(SRG) on connections, bored for float also available for your choice.
Mechanical Property
| Tensile Strength | Yield Strength | Charpy V-notched Toughtness | Elongation | Reduction of area | |
| Mpa | Mpa | 20°C | -20°C | % | % |
| ≥966 | ≥758 | ≥54J | 30J | ≥13 | ≥40 |
Integral blade stabilizer specification
| Working | Working | D2 | D | L±20 | Suitable Bit Diameter | |||
| Short Type | Long type | |||||||
| Near-bit Type | Drill | Near-bit Type | Drill | |||||
| L3=150 | L1=350 | L3=300 | L1=700 | |||||
| 152.4 |
400
500 |
121 |
51 |
950
1050 |
1100
1200 |
1450
1550 |
1650
1750 | 152.4(6) |
| 158.7 | 158.7(6 1/4) | |||||||
| 161.5 | 165.1(61/ | |||||||
| 190.5 |
400 500 |
159 |
57 | 950 1050 | 1100
1550 | 1450
1550 | 1650
1750 | 190.5(71/2) |
| 200.0 | 200.0(8 3/8) | |||||||
| 212.7 |
400
500 700 |
178 |
71 |
950
1050 1250 |
1100 1200 1650 |
1450 1550 1650 |
1650 1750 1850 | 212.7(8 3/8) |
| 215.9 | 215.9(8 1/2) | |||||||
| 222.2 | 222.2(8 3/4) | |||||||
| 241.3 |
400 500 600 700 |
178 |
71 |
950 1050 1150 1250 |
1100 1200 1300 1400 |
1450 1550 1650 1750
|
1650 1750 1850 1950 | 241.9(9 1/2) |
| 244.5 | 244.5(9 5/8) | |||||||
| 250.8 | 250.8(9 7/8) | |||||||
| 311.1 | 600 800 |
203
229 |
76 | 1250 | 1400 | 1850 | 2050 | 311.1(12 1/4) |
| 444.5 | 700 | 1550 | 1700 | 2150 | 2350 | 444.5(17 1/2) | ||
Integral straight blade stabilizer: Integral 3-straight rib stabilizer, integral 4-straight rib stabilizer, and Integral multi-straight rib stabilizer, which working surface are provided with carbide insert compound and overlay, etc. The body is made from high strength alloy steel of heat treated.
Features:
To be manufactured from high strength 4145H heat treated materias.
•One-piece rotation stabilizer can be run either near the bit or up in the drill string.
•Various hardfacings are available i.e. Composite Tungsten Carbide Rod, Tungsten Carbide Inserts, Diamond Inserts, Geothermal.
•Full standard spec and special spec are available.
Applications:
To be applied in most rugged and abrasive drilling formation.
