Product Description
WZ Type Integral Blade Stabilizer
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Integral 3-Straight rib stabilizer, Integral 4- Straight rib stabilizer, working surface are provided with carbide insert compound or overlay welding, etc. The body is made from high strength and heat treated , the centralizing blades are designed at customer's request.
Thechnical specifications and parameters
|
Bit
O.D (in)
|
Working O.D.
|
D2
|
d
|
L2
|
Length(mm)
|
Thread code on two ends
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Short Type
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Long Type
|
Drill string type
|
Near bit type
(in)
|
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Near bit type
|
Drill string
type
|
Near bit type
|
Drill
string type
|
end
|
Down
|
Top
|
Down
|
|
6
|
152.4
|
121
|
51
|
400~500
|
800~900
|
1000~1100
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1200~1400
|
1400~1600
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NC38
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NC38
|
NC38
|
3 1/2REG
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6 1/4
|
158.7
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|
6 1/2
|
165.1
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|
7 1/2
|
190.5
|
159
165
178
|
57
|
1000
|
1600
|
1800
|
NC46
|
NC46
|
NC46
|
4 1/2REG
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|
7 7/8
|
200.0
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|
8 3/8
|
12.7
|
400
500
600
|
1000~1200
|
1600~1800
|
1800~2000
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NC46
NC50
|
4 1/2REG
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|
8 1/2
|
15.9
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|
8 3/4
|
22.2
|
|
9 1/2
|
241.3
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178
197
|
71
|
400~600
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800~1000
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1000~1200
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1600~1800
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NC50
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NC50
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NC50
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6 5/8REG
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9 5/8
|
244.5
|
|
9 7/8
|
250.8
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12 1/4
|
311.2
|
203
229
|
76
|
500~600
|
1000
1200
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1200
1500
|
1800
2000
|
NC56
6 5/8REG
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6 5/8 REG
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17 1/2
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444.5
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500~600
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1200~1300
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1200~1300
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2000~2200
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2000~2200
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NC61
7 5/8REG
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HF2000 type, HF3000 and HF5000 Hard Facing Stabilizer
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This kind of stabilizer is prior than the traditional inlaid alloy column type stabilizer .This kind of stabilizers can protect the drill bit well. This kind of stabilizers are generally used in the international market. Nowadays, our company has developed three new types of hard facing stabilizers which are HF2000 type, HF3000 type and HF5000 type that have filled the bland of this products market.
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Integral Spiral Blade Stabilizer
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We manufacture integral spiral blade stabilizer, integral straight-rib stabilizer, sleeve replaceable type stabilizer, float valve stabilizer, drilling reamer, unbalanced spiral blade stabilizer and variable-diameter stabilizer, all above products comply with API Spec.7.
Integral 3-Spiral Blade Stabilizer, Integral 4-Spiral Blade Stabilizer (string type ,near bit type ). The working hardfacing surface (also called as wall contact )materials available separately are (1) carbide insert,(2) Inserted diamond compound, (3) Low temperature brazing tungsten carbide slug,(4) Surface bead welding abrasive welding rod, etc.
Technical specifications and parameters
| Bit size(in) |
Working O.D. |
End O.D. of body |
I.D. |
Length |
Thread code on both ends |
| 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 |
6 5/8 REG |
| 9 5/8 |
244.5 |
1800 |
| 9 7/8 |
250.8 |
| 12 1/4 |
311.2 |
203
229 |
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 |
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Replaceable Sleeve Stabilizer
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The replaceable sleeve stabilizer are available with two-piece and three-piece construction. The three-piece construction stabilizer is made of a body and a centralizing body(refer to sleeve replaceable). The advantage is that the sleeve can be changed quickly and easily after sleeve hardfacing is worn-out. This kind of stabilizer is especially suitable for working in directional well .
Tec hnical parameters for 2-piece replaceable sleeve stabilizer
Bit Dia.
(in) |
Drill collar
dia.(in)
|
Stabilize sleeve
|
The body
|
Thread code on both ends
|
| Length |
Work O.D.
|
Upset end Dia.
|
upset end length |
Fishing neck length |
ID
|
Make-up
Torque
(KN.m)
|
Over length L
|
Drill string type
|
Near bit type
|
|
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 |
1800~1900 |
1800~1900 |
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 |
1800~2000 |
1800~2000 |
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 |
2000~2200 |
2000~2200 |
| 24 |
| 26 |
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3-Piece Sleeve Replaceable Stabilizer
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The 3-piece sleeve replaceable stabilizer is made of central pipe, sleeve replaceable and bottom sub which are thread connection. The three-piece construction can bear strong bending strength and the sleeve can be easily and quickly replaced on drill floor.
Technical specifications and parameters for 3-piece repaceable sleeve stabilizer
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Working O.D.
|
L2 |
D2 |
d |
L1 |
L |
Bit Dia
|
|
mm
|
mm(in) |
| 190.5 (190.0,189.0) |
400
500 |
159 |
57 |
850 |
1800 |
190.5 (7 1/2) |
| 200.0 (199.0,198.0) |
200.0 (7 7/8) |
| 212.7 (212.0,211.0) |
400
500
600 |
159
165
178 |
57
71 |
1800 |
212.7 (8 3/8) |
| 215.9 (215.0,220.0) |
215.9 (8 1/2) |
| 222.2 (22.0,220.0) |
222.2 (8 3/4) |
| 241.3 (240.0,243.0) |
400
500
600 |
178 |
71 |
1800
2000
2100 |
241.3 (9 1/2) |
| 244.5 (244.0,243.0) |
244.5 (9 5/8) |
| 250.8 (250.0,249.0) |
250.8 (9 7/8) |
| 311.2 (310.0,309.0) |
500
600 |
203
209 |
76 |
1800
2000
2200 |
311.2 (12 1/4) |
| 444.5 (17 1/2) |
| 444.5 (443.0,442.0) |
500
600 |
228 |
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Non-rotating Stabilizer
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The FXF type non-rotating stabilizer (rubber sleeve stabilizer )is a special tool in drilling to avoid blade wear and wall damage. During drilling, stabilizer transfer torque by depending on mandrel body, but rubber sleeve is sliding coordination which can be moved relatively, as a result, the sleeve plays a role of supporting of holewall. The sleeve is made of special elastic material and fixed by a latch clutch to prevent from rotating .
Technical specifications and parameters
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Hole size
(in)
|
Sleeve
|
Body
|
Overall Length(mm)
|
|
Length(mm)
|
O.D.
|
Blade Qty
|
I.D. (mm)
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Fishing O.D.
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Thread type
|
| 13 3/8 Casing |
500 |
��313 |
4 |
��71 |
��165 |
4 1/2 IF |
2000 |
| 10 3/4 Casing |
500 |
��255 |
��71 |
��165 |
4 1/2 IF |
2000 |
| 9 5/8 Casing |
500 |
��220 |
��71 |
��165 |
4 1/2 IF |
2000 |
| 7 Casing |
380 |
��157 |
��44 |
��127 |
3 1/2 IF |
1600 |
| 12 1/4 |
523 |
��310 |
��76 |
��215 |
6 5/8 REG |
2010 |
| 16 |
543 |
��405 |
��76 |
��241 |
7 5/8 REG |
2210 |
| 17 |
543 |
��430 |
��76 |
��241 |
7 5/8 REG |
2210 |
| 22 |
635 |
��558 |
��76 |
��241 |
7 5/8 REG |
2210 |
| 28 |
715 |
��711 |
5 |
��76 |
��241 |
7 5/8 REG |
2210 |
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Float Valve Stabilizer
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Float valve stabilizer is mainly used in near bit type stabilizer while working for preventing from borehole deflection, when blowout or well kick takes place, the float valve stabilizer will automatically shut off inside bore of tool to avoid the accident. The tool owns features such as high strength, large flowing area, high temperature resistant and high pressure resistant, etc.
Technical specifications and parametes
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Type for stabilizer
|
Stabilizer Body O.D. (mm)
|
Stabilizer thread
|
Float valve assembly O.D. (mm)
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Float valve assembly length (mm)
|
| FFWL711 |
228 , 241 |
7 5/8 REG |
121 |
298.4 |
| FFWL588 |
228 , 241 |
7 5/8 REG |
121 |
298.4 |
| FFWL444 |
228 , 241 |
7 5/8 REG |
121 |
298.4 |
| FFWL311 |
203 , 209.6 |
6 5/8 REG |
121 |
298.4 |
| FFWL241 |
178 |
4 1/2 IF |
98 |
247.6 |
| FFWL214 |
178 , 165 |
4 1/2 REG |
88 |
211.14 |
| FFWL152 |
127 , 121 |
3 1/2 REG |
61 |
165.1 |
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Spherical Stabilizer
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The spherical stabilizer is one of new type tools which is used in horizontal and directional well to prevent hole inclination, improve drilling solution, improve drill tools service life and hole condition, cut off /scrape bore wall . Because of small size, simple structure, it is so applicable for horizontal and directional well .The guide inclined plane covered with polycrystalline compact and cutting edges covered with spherical tungsten carbide stud ,during stabilizer contacts with roughed hole wall , can cut or scraped off raised or irregular well wall, therefore, the spherical stabilizers are widely used in various of drilling operation.
Technical specification and parameters
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working
O.D. (in)
|
Body O.D. on both ends (mm)
|
I.D. (mm)
|
Length
(mm)
|
Thread on both ends (in)
|
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String type
|
Near bit type
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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 |
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Variable Diameter Stabilizer
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Stabilizer is one of main drill tool assembly in hole guiding. During drilling in deviating and horizontal well , in view of workmanship, stabilizer OD is required to be equal or 1~2mm less than drill bit so that too small clearance between borehole wall and stabilizer usually causes stabilizer to be easily stuck during tripping out of hole.
However, variable diameter stabilizer solves the problem which common stabilizer can not solves. During drilling in directional well, by use of differential pressure at nozzle produced by circulation of fluid among inside and outside of drill string, stabilizer stretch out supporting head to reach full hole so that stabilizer equipped with different drill tools to increase or angle drop or stabilize hole inclination. Meanwhile, when stop pump circulation, support head draws back so that stabilizer OD becomes small to improve tripping out smoothly.
Parameters
|
Type
|
Body
OD
(mm)
|
ID
(mm)
|
Support head assembly OD (mm)
|
Support head
Nos.
|
Overal-
Length
(mm)
|
Box
thread
|
Pin
thread
|
OD
varied
|
|
ZBW8 3/4"
|
201
|
55
|
80
|
15
|
1350
|
NC50
|
NC50
|
211~213
|
|
ZBW8 1/2"
|
204
|
55
|
80
|
15
|
1350
|
NC50
|
NC46
|
214~215
|
Properties index
|
Type
|
Min. pressure when
support head stretch
out(Mpa)
|
Radial force of main support
heads under 10Mpa differential
pressure (KN)
|
Max. working
allowed pressure
(Mpa)
|
Max.
differential
pressure
|
|
ZBW8 3/4"
|
0.1
|
513
|
20
|
40
|
|
ZBW8 1/2"
|
0.1
|
513
|
20
|
40
|
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Unbalanced Single-spiral Blade Stabilizer / Multi-
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The unbalanced spiral blade stabilizer, relying on its structural unbalanced principle, during rotating of drill string, produces a centrifugal force toward weighted side. One time natural coincidence for restoring force with eccentric force whener drill tool turns a round. This would produce a large impact restoring force to straighten well-bore gradually. Therefore, both single-spiral blade stabilizer and multi-spiral blades stabilizer are ideal anti-inclination tool
Technical specification and parameters for single-spiral-blade stabilizer
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Type
|
OD
|
ID
|
Thread conn.(in)
|
Length(mm)
|
|
WLD215 - 66
|
215
|
71
|
4 1/2 IF
|
1800
|
|
WLD311 - 68
|
311
|
76
|
6 5/8 REG
|
1800
|
|
WLD444 - 69
|
444
|
76
|
7 5/8 REG
|
2000
|
Technical specification and parameters for multi-spiral-blades stabilizer
|
Type
|
OD
|
ID
|
Thread conn
|
Length(mm)
|
|
WLD215 - 66
|
215
|
71
|
4 1/2 IF
|
4600
|
|
WLD311 - 68
|
311
|
76
|
6 5/8 REG
|
4600
|
|
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