China API Oilwell Drill String Stabilizer Oil Tools/Oilfield Stabilizer, Find details about China Downhole Tools Drill Stabilizer, API Heavy Weight Drill Pipe from API Oilwell Drill String Stabilizer Oil Tools/Oilfield Stabilizer
Drill Stabilizers are manufactured from 4145H alloy steel bar or forgings, quenched and tempered to 285-341 Brinell hardness;
Stabilizers are fairly short subs which have blades attached to their external surface. By providing support for the BHA (Bottom Hole Assembly) at certain points they can be used to control the trajectory of the well. The blades can be either straight or spiral in shape. Spiral blades can give 360° contact with the borehole.
API Connection
All API connections comply with dimensional requirements specified in API spec 7 and API RP 7G. Common sizes and styles are summarized in the table below. Premium connections are available on request.
Hard-facing Types
HF 1000 (crushed carbide)
HF 2000 (crushed carbide and tungsten traps)
HF 3000 (T.C.I. spray matrix spray powder and tungsten insert)
HF 4000 (buttons)
HF 5000 (technodur)
Options Available
1. Integral blade, Welded blade/ Spiral Blade, Straight Blade
2. Alloy steel, Non-magnetic steel
3. String Type, Near Bit Type
Size (Code) Inch | Connection Inch | Fishing Neck Inch | Overall Length Inch | Fishing Neck Length Inch | Blade Length Inch | Blade Width Inch |
42" | 8-5/8"REG | 11" | 120" | 32" | 24" | 6.5" |
36" | 7-5/8"REG | 9.5" | 110" | 30" | 22" | 6.5" |
26" | 7-5/8"REG | 9.5" | 100" | 30" | 20" | 4" |
17 1/2" | 7-5/8"REG | 9.5" | 90" | 30" | 18" | 3.5" |
12 1/4" | 6-5/8"REG | 8 " | 90" | 30" | 18" | 3" |
8 1/2" | 4 1/2"IF | 6 3/4" | 72" | 28" | 16" | 2.25" |
6" | 3-1/2"IF | 4 3/4" | 66" | 28" | 16" | 2" |