Drill stem Stabilizer

Model No.︰Drilling Tools

Brand Name︰TianHe

Country of Origin︰China

Unit Price︰-

Minimum Order︰1 pc

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Product Description

WZ Type Integral Blade Stabilizer

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

L₂

Length(mm)

Thread code on two ends

Short Type

Long Type

Drill string type

Near bit type
(in)

Near bit type

Drill string

type

Near bit type

Drill

string type

end

Down

Top

Down

152.4

121

400~500

800~900

1000~1100

1200~1400

1400~1600

NC38

3 1/2REG

6 1/4

158.7

6 1/2

165.1

7 1/2

190.5

159

165

178

1000

1600

1800

NC46

4 1/2REG

7 7/8

200.0

8 3/8

12.7

400

500

600

1000~1200

1600~1800

1800~2000

NC46

NC50

4 1/2REG

8 1/2

15.9

8 3/4

22.2

9 1/2

241.3

178

197

400~600

800~1000

1000~1200

1600~1800

NC50

6 5/8REG

9 5/8

244.5

9 7/8

250.8

12 1/4

311.2

203

229

500~600

1000

1200

1500

1800

2000

NC56

6 5/8REG

6 5/8 REG

17 1/2

444.5

500~600

1200~1300

2000~2200

NC61

7 5/8REG

HF2000 type, HF3000 and HF5000 Hard Facing Stabilizer

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.

Integral Spiral Blade Stabilizer

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

Replaceable Sleeve Stabilizer

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

3-Piece Sleeve Replaceable Stabilizer

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

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

Non-rotating Stabilizer

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

Hole size (in)	Sleeve			Body			Overall Length(mm)
Hole size (in)	Length(mm)	O.D.	Blade Qty	I.D. (mm)	Fishing O.D.	Thread type	Overall Length(mm)
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

Float Valve Stabilizer

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

Type for stabilizer	Stabilizer Body O.D. (mm)	Stabilizer thread	Float valve assembly O.D. (mm)	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

Spherical Stabilizer

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

working O.D. (in)	Body O.D. on both ends (mm)	I.D. (mm)	Length (mm)	Thread on both ends (in)
				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

Variable Diameter Stabilizer

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

Unbalanced Single-spiral Blade Stabilizer / Multi-

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

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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