Products > Drilling Equipment

Stabilizer


Product Number: KW-DE-02 Stabilizers include spiral, straight, integral and welded blade, in both 4145 heat-treated steel and non-magnetic metal.


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KINGWELL Stabilizer Features & Benefits:
 
KINGWELL offers a wide variety of stabilizers including spiral, straight, integral and welded blade, in both 4145 heat-treated steel and non-magnetic metal. Designed to control deviation and increase penetration. KINGWELL stabilizers are economical, provide versatility for various BHA configurations and reduce overall drilling costs.
 
Material: AISI 4145H, 4145H Mod, AISI 4330V Mod, Non Magnetic
Size: 6" - 42" in various lengths
Hardfacing: HF1000-HF5000
Type: IB type, Straight blade type, Sleeve type etc
 
KINGWELL Stabilizer Forging
 
KINGWELL also offers new API stabilizer forgings, including steel IB forgings and other stabilizer forgings.
Material: AISI 4145H Mod Alloy steel, Non magnetic steel, etc.
 
 
KINGWELL Stabilizer Technical Data:
 
Bit Size
(in)
Working OD
(mm)
End OD of body(mm) ID
(mm)
Length
(mm)
Thread code on both ends
Drill string type Near bit type
Top Down Top Down
6 152.2 121 51 1200 NC38 3 1/2 REG
6 1/4 158.7
6 1/2 165.1
7 1/2 190.5 159 57 1600 NC46 4 1/2 REG
7 7/8 200
8 3/8 212.7 159
165
71 1600
1800
NC46
NC50
8 1/2 215.2 159
165
178
8 3/4 222.2
9 1/2 241.3 178
197
1600 NC50 NC50 NC50
9 5/8 244.5 1800 6 5/8 REG 
9 7/8 250.8
12 1/4 311.2 203
209
76 1800 NC56
6 5/8 REG
NC56
6 5/8 REG
NC56
6 5/8 REG
6 5/8 REG
16 406 229
241.3
2000
2200
NC61
7 5/8 REG
NC61
7 5/8 REG
NC61
7 5/8 REG
NC61
7 5/8 REG
17 1/2 444.5
24 609.6
26 660.4
28 711.2
Note: Stabilizer can be made according to customer's special requirement.
 

 
Non-magnetic Drill stabilizer technological regulation
1.Scope
    This regulation applies for the production,inspection and marketing of non-magnetic drill stabilizer from KINGWELL.
 This regulation includes technological requirements of non-magnetic drill stabilizer, test method, signal ,package, test certificate and quality control information.
 This regulation applies to the latest edition of API Spec 7 ,if there are conflicts, should take API Spec 7 shall prevail.
2.Technological requirements
2.1 Chemical composition
 sheet 1: Chemical composition(%)
  C Si Mn Cr Ni Mo N P S Al Cu Nb
 
0.08

1.0
18.0
-
22.0
13.0
-
17.0
1.0
-
3.0
0.4
-
0.75
0.28
-
0.46
 

0.03
 
 

0.01
 
 

0.025
 

0.20

0.10
Tolerance ±0.01 ±0.05 ±0.15 ±0.15 ±0.03 ±0.03 ±0.03 ±0.005 ±0.005      
 
2.2 Mechanical property and Size requirements.
2.21Mechanical property should be up to sheet 2.
              Sheet 2 mechanical property               
Yield Strength
 Rt(Mpa)
Tensile Strength
 Rm(Mpa)
Elongation
A(%)
Sharp V Impact
Akv(J)
Hardness Brinell
(HB)
≥758 ≥827 ≥18 ≥75(longitudinal) ≥285
2.22 Magnetic property
The relative permeability for each drill stabilizer should be no more than 1.010 µr and the maximum deviation of uniform magnetic field should be no more than±0.05 µT. Inspection should use a magnetoscope and the probe for difference of magnetic fields. Magnetometer connected with the probe should be posited the axial direction of non-drill stabilizer and the difference of magnetic fields showed on the recording papertape should be a part of stabilizer inspection certificate, that's magnetic field gradient results.
2.23 Decay resistance
    Each non-magnetic drill stabilizer should pass the current edition of ASTM A282 E method of corrosion test.
2.24 Straightness accuracy
The maximum straightness for each non-drill stabilizer is 0.52mm/m.
2.25 Axiality
The maximum deviation for all the diameters should be no more than 1mm.
2.26 Difference in wall thickness
The full range wall thickness difference for each non-magnetic stabilizer should be less than or equal to nominal thickness 12%, or less than or equal to 4.78mm, smaller was be preferred.
2.27 Surface
The surface should be smooth and the surface quality defects burnish depth should comply with the regulation of API SPEC 7-1, inner hole should carry on the cold roller processing.
2.28 Size
    The sizes of stabilizer must be complied with relevant constracts. The OD,ID and varios size must be according to the drawing.
2.29 Ultrasonic Test
    Ultrasonic Test must be complied with the regulation of ASTM A388.
3.Test method and regulations
3.1 Mechanical Property
3.11
    Both of the tensile specimen and impact specimen should be sampled longitudinally at any end of the forging,It should be 25.4mm away from the surface  or in the center of the wall thickness, smaller will be preferred. It should be carried out in accordance with the column specimen of 0.2% conditioned yield point in ASTM A370. The impact specimen should be adopt the 10mm×10mm×55mm charpy V specimen, and the test temperature is 20℃±5℃.
3.12
    The hardness test should be complied with the requirements of ASTM A370.
Surface Hardness: Choose two points separately from work part ,two ends,cant and do test.
Subcutaneous quadrant hardness: Do corss-shaped test at two ends of stabilizer, which posited subcutaneous 1.5",1" and each quadrant three value measurement.
3.13
The supplier chooses two stabilizers and leaves 150mm sample length at any end for the buyer to get a sample of 30mm×30mm×150mm.
3.2 Non-magnetic Test
Each non-magnetic drill stabilizer should be carried on relative permeability test,the test method should be noted on the certificates.
3.3 Intergranular Corrosion Inspection
    Intergranular corrosion inspection must be complied with ASTM A262 E. Specimen sampling locates the axial from inner hole within 12.7 mm
3.4 Straightness measurement
   The offset between the centre line of the two ends of stabilizer and tube body.
3.5 Wall Thickness Test
    With Ultrasonic thickness gage do wall thickness test on the full range of non-magnetic drill stabilizer.
3.6 Ultrasonic Test
Each non-magnetic drill stabilizer should be carried on frull range Ultrasonic Test as per API SPEC 7-1.
3.7 Inner holes of each non-magnetic drill stabilizer should carry on the cold roller processing.
4. Signal
    Producer signal,Furnace number and Serial number should be marked on the end of each non-magnetic drill stabilizer.
5.Package
No oil, no paint ,no wrap on surface of non-magnetic drill stabilizer.
Non-magnetic drill stabilizers will be tighten on the steel shelf.
6.Inspection Certificates and Quality control information
    Inspection Certificate should include product name,furnace number,size,wall thickness difference test results,chemical composition,mechanical property,relative permeability test results, magnetic field gradient results, Intergranular Corrosion Inspection results,Ultrasonic Test results, surface quality.
 
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 Drill Reamer
 
 
The application of drilling hole opener can improve the hole quality.
Meanwhile, it can save rig using time. Another benefit is the ability of
continuous drilling, reducing the number of drilling and reaming. Therefore,
the benefit of drilling reamer is: can quickly drill a smooth implementation of
concentric hole, reduce the losses of drilling rig caused by taking up much of
rig time in lowering the casing, tripping and completion so as to achieve the
completion ahead of schedule and cost savings
.
 
working WOB KN 20-50) MAX allowable tensile load KN2221  allow able working torque KN.M 36
 
Body 8”  thead NC50 OPEN SCOPE215.9-260mm  working displacement L/S ≥8
 
The application of drilling hole opener can improve the hole quality.
Meanwhile, it can save rig using time. Another benefit is the ability of
continuous drilling, reducing the number of drilling and reaming. Therefore,
the benefit of drilling reamer is: can quickly drill a smooth implementation of
concentric hole, reduce the losses of drilling rig caused by taking up much of
rig time in lowering the casing, tripping and completion so as to achieve the
completion ahead of schedule and cost savings
 
 
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