High Quality API Drilling Tool Drilling Stabilizer All Models 311.1
1. High-strength
2. API Standard
This product is designed and manufactured in accordance with the petroleum and natural gas industry standard of People’s Republic of China Drilling Tool Stabilizers (SY/T 5051-2009) and API7-1 standard.
3. Excellent Cost Performance
As an original manufacturer, we are sure that we can supply the tool you need in most reasonable price.
Major technical parameters and dimensions:
|
Applicable bit diameter mm (in.) |
Operating OD mm |
Length of stabilizing surface L2 ±5mm |
Joint OD mm |
Bore mm |
L1±10 mm |
Total length L±20 mm |
||
Short |
Long |
Short |
Length |
|||||
165.1 (6 1/2) |
164 |
300 |
400 |
121 |
50.8 |
500 |
1400 |
1450 |
311.1 (12 1/4) |
311 |
400 |
550 |
203 |
71.4 |
500 |
1650 |
1700 |
444.5 (17 1/2) |
444 |
500 |
650 |
229 |
71.4 |
500 |
1950 |
2000 |
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