Large Span Group

China Manufacturer with main products: K Span Machine, Roll Forming Machine, Mic120 Mic240 Abm120 Abm240 Super K Span Machine, Slitting Line, Light Gauge Steel Framing Machine,...

Stabilizer

Specifications

Stabilizer
Stabilizer is one useful tool for drilling operation. Our company offers a wide variety of near bit stabilizers and string stabilizers according to API SPEC 7. All drilling stabilizers are integral style, also can be highly customized as per customer's requirements.


Stabilizer

Integral Straight Blade Stabilizer
Straight blade stabilizer is integrally made of high strength alloy steel AISI 4145H, usually with 3 blades or 4 blades. The working surface of straight stabilizer is provided with carbide insert, diamond compound insert, or overlay welding etc.

Integral Spiral Blade Stabilizer
Spiral blade stabilizer is integrally made of high strength alloy steel AISI 4145H, usually with 3 blades or 4 blades. The working surface of spiral stabilizer is provided with carbide insert, diamond compound insert, or overlay welding etc.
Replaceable Sleeve Stabilizer
Replaceable sleeve stabilizer is special tool suitable for directional well drilling. The stabilizer sleeve can be changed quickly and easily after sleeve hard banding is worn-out. There're two styles available: 2-piece stabilizer, and 3-piece stabilizer.
Non-Rotating Stabilizer
Non-rotating stabilizer is special tool in drilling to avoid blade worn out or wall damage. Kingwell provides non-rotating stabilizer for drilling hole from 13-3/8"~28".
Float Valve Stabilizer
Float valve stabilizer is effective tool in drilling operation. The stabilizer is connected at upper part of drill bit, and the float valve assembly in stabilizer is near the bit thread. Such structure of stabilizer can realize the automatically shutting off inside bore of tool to avoid the accident.
Spherical Stabilizer
Spherical stabilizer is new tool for various drilling operation. Kingwell provides spherical stabilizer from 6"~ 12-1/4".

VariablDiameter Stabilizer
Variable diameter stabilizer is new tool for drilling operation. With special support head, variable diameter stabilizer can change the outside diameter by stretching out or drawing back support head so as to adjust the clearance between hole wall and stabilizer and avoid sticking.
Unbalanced Spiral Blade Stabilizer
Unbalanced Spiral Blade Stabilizer is ideal anti-inclination tool for drilling operation. Relying on stabilizer's structural unbalanced principle, during rotating of drilling string, stabilizer will make one centrifugal force to heavy side, working with the eccentric force etc of drilling string, such large impart restoring force will straighten well-bore gradually. There're two styles available: unbalanced spiral blade.
Options for Stabilizer Hard Facing
HF 1000, ideal for soft formation drilling.


HF 2000, ideal for high deviation drilling in abrasive formations.

HF 3000, recommended for non-magnetic stabilizers.

TCI, button type

Technical Specifications of Straight Blade Stabilizer

Bit O.D.(in)

O.D.
(mm)

End O.D.
(mm)

I.D.
(mm)

Length(mm)

Connection

Short Type

Long Type

Drill String

Near Bit

Near Bit

Drill String

Near Bit

Drill String

Top

Down

Top

Down

6

152.4

121

51

800
~900

1,000
~1,100

1,200
~1,400

1,400
~1,600

NC
38

NC
38

NC38

3-1/2 REG

6-1/4

158.7

6-1/2

165.1

7-1/2

190.5

159
165
178

57
71

1,000

1,600

1,800

NC
46

NC
46

NC46

4-1/2 REG

7-7/8

200.0

8-3/8

212.7

1,000
~1,200

1,600
~1,800

1,800~
2,000

NC46
NC50

4-1/2 REG

8-1/2

215.9

8-3/4

222.2

9-1/2

241.3

178
197

71

800
~1,000

1,000
~1,200

1,600
~1,800

NC
50

NC50

NC50

6-5/8 REG

??

9-5/8

244.5

??

9-7/8

250.8

??

12-1/4

311.2

203
229

76

1,000
~1,200

1,200
1,500

1,800
2,000

NC56
6-5/8 REG

6-5/8 REG

17-1/2

444.5

1,200
~1,300

1,200
~1,300

2,000
~2,200

2,000~
2,200

NC61
7-5/8 REG


Technical specifications of spiral blade stabilizer

Bit Size
(in)

Working O.D.
(mm)

End O.D. of Body
(mm)

I.D.
(mm)

Length
(mm)

Thread Code on Both Ends

String Type

Near Bit Type

Top

Down

Top

Down

6

152.4

121

51

1,200

NC38

3-1/2 REG

6-1/4

158.7

6-1/2

165.1

7-1/2

190.5

159

57

1,600

NC46

4-1/2 REG

7-7/8

200

8-3/8

212.7

159
165

71

1,600
1,800

NC46
NC50

8-1/2

215.2

159
165
178

8-3/4

222.2

9-1/2

241.3

178
197

1,600

NC50

NC50

NC50

6-5/8 REG

9-5/8

244.5

1,800

9-7/8

250.8

12-1/4

311.2

203
229

76

1,800

NC56
6-5/8 REG

NC56
6-5/8 REG

NC56
6-5/8 REG

6-5/8 REG

16

406

229
241.3

2,000
2,200

NC61
7-5/8 REG

NC61
7-5/8 REG

NC61
7-5/8 REG

NC61
7-5/8 REG


Technical Specifications of Replaceable Sleeve Stabilizer

Bit
Dia.
(in)

Drill
Collar
Dia.
(in)

Sleeve

Stabilizer Body

Thread Code on Both Ends

Length
(mm)

Work O.D. (mm)

Upset End Dia. (mm)

Upset End Length (mm)

Fishing Neck Length (mm)

I.D. (mm)

Make-up
Torque
(KN.m)

Over length (mm)

Drill String

Near Bit

Near Bit Type

Drill String Type

Top

Down

Top

Down

8-
1/2

6-1/2

480

214

190

200

600

71

6.95
~7.25

1,800
~1,900

1,800
~1,900

4-1/2 IF

4-1/2 IF

4-1/2 IF

4-1/2 REG

8-1/4

470

210

8-

472

203

7-3/4

455

197

12-1/4

8

555

310

238

76

19.7
~11

1,800
~2,000

1,800
~2,000

6-5/8
REG

6-5/8 REG

6-5/8 REG

6-5/8 REG

12-

550

305

11-1/2

540

292

11

530

279

17-1/2

9

682

444

279

13.85
~16.55

7-5/8
REG

7-5/8 REG

7-5/8
REG

7-5/8 REG

17

676

432

16-1/2

670

420

16

644

407

22

2,000~
2,200

2,000~
2,200

24

26


Technical Specifications of Non-Rotating Stabilizer

Hole Size (in)

Stabilizer Sleeve

Stabilizer Body

Overall Length (mm)

Length (mm)

O.D.

Blade Qty.

I.D. (mm)

Fishing
O.D.(mm)

Thread Type

13-3/8

500

313

4

71

165

4-1/2 IF

2,000

10-3/4

500

255

4

71

165

4-1/2 IF

2,000

9-5/8

500

220

4

71

165

4-1/2 IF

2,000

7

380

157

4

44

127

4-1/2 IF

1,600

12-1/4

523

310

4

76

215

6-1/8 REG

2,010

16

543

405

4

76

241

7-5/8 REG

2,210

17

543

430

4

76

241

7-5/8 REG

2,210

22

635

558

4

76

241

7-5/8 REG

2,210

28

715

711

5

76

241

7-5/8 REG

2,210


Technical Specifications of Float Valve Stabilizer

Stabilizer Body O.D. (mm)

Stabilizer
Thread

Float Valve Assembly O.D. (mm)

Float Valve Assembly length (mm)

228 241

7-5/8 REG

121

298.4

228 241

7-5/8 REG

121

298.4

228 241

7-5/8 REG

121

298.4

203 209.6

6-5/8 REG

121

298.4

178

4-1/2 IF

98

247.6

178 165

4-1/2 REG

88

211.14

127 121

3-1/2 REG

61

165.1


Technical Specifications of Spherical Stabilizer

working
O.D. (in)

Body O.D. on Both Ends (mm)

I.D. (mm)

Stabilizer
Length
(mm)

Thread on Both Stabilizer Ends

String Type

Near Bit Type

Top

Down

Top

Down

6~6-1/2

121

51

785

3-1/2IF

3-1/2IF

3-1/2IF

3-1/2REG

7~7-7/8

159

57

850

4-1/2IF

4-1/2IF

4-1/2IF

4-1/2REG

8~8-1/2

165

71

850

4-1/2IF

4-1/2IF

4-1/2IF

4-1/2REG

9~9-1/4

197

71

870

4-1/2IF

4-1/2IF

4-1/2IF

4-1/2REG

12~12-1/4

203

76

940

6-5/8REG

6-5/8REG

6-5/8REG

6-5/8REG


Technical Specifications of Variable Diameter Stabilizer

Body
O.D.
(mm)

I.D.
(mm)

Head O.D. (mm)

Head
Nos.

Overall
Length
(mm)

Box
Thread

Pin
Thread

O.D .
Varied (mm)

Min. Pressure ,
Stretch Out(MPa)
Max. Working
Pressure (MPa)

Max.
Differential
Pressure (MPa)

201

55

80

15

1,350

NC50

NC50

211~213

0.1 20 40

204

55

80

15

1,350

NC50

NC46

214~215

0.1 20 40

Technical Specifications of Unbalanced Single-Spiral-Blade Stabilizer

O.D. (mm)

I.D. (mm)

Thread conn.

Length(mm)

215

71

4-1/2 IF

1,800

311

76

6-5/8 , REG

1,800

444

76

7-5/8 REG

2,000


Technical Specifications of Unbalanced Multi-Spiral-Blade Stabilizer


O.D. (mm)

I.D. (mm)

Thread conn.

Length(mm)

215

71

4-1/2 IF

4,600

311

76

6-5/8 REG

4,600

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