The drilling stabilizers are divided into three types based on the structure:
1. Integral type
2. Integral spindles with different models
3. Fluctuation spindles with different models
The main body or the central spindle is made of superior-quality alloy steel, with special heat treatment to achieve the anticipated hardness, strength and the resistance performance.
|
Working O.D.
In(mm)
|
Both end O.D.
In(mm)
|
Up conn. API
|
Down conn. API
|
I.D.
In(mm)
|
Fishing length
In(mm)
|
Blade length
In(mm)
|
Blade wide
In(mm)
|
OAL
In(mm)
|
Remark
|
|
5 7/8
(142.9)
|
4 3/4
(120.7)
|
NC38
|
NC38
|
2 1/4
(57.2)
|
20
(508)
|
16
(406)
|
2 1/4
(57.2)
|
57
(1448)
|
String
|
|
3 1/2REG
|
Near bit
|
||||||||
|
8 1/2
(215.9)
|
6 1/2
(165.1)
|
NC5
|
NC50
|
2 13/16
(71.4)
|
20
(508)
|
16
(406)
|
2.5
(63.5)
|
60
(1524)
|
String
|
|
4 1/2REG
|
Near bit
|
||||||||
|
12 1/4
(311.1)
|
8
(203.2)
|
6 5/8 REG
|
6 5/8 REG
|
3
(76.2)
|
20
(508)
|
16
(406)
|
3 1/2
(88.9)
|
63
(1600)
|
String
|
|
Near bit
|
|||||||||
|
17 1/2
(444.5)
|
9
(228.6)
|
7 5/8 REG
|
7 5/8 REG
|
3
(76.2)
|
20
(508)
|
18
(457)
|
4 3/4
(121)
|
72 1/2
(1840)
|
String
|
|
Near bit
|
|||||||||
|
22
(558.8)
|
9 1/2
(241.3)
|
7 5/8 REG
|
7 5/8 REG
|
3
(76.2)
|
30
(762)
|
20
(508)
|
4 3/4
(121)
|
93
(2362)
|
String
|
|
Near bit
|
|||||||||
|
26
(660.4)
|
9 1/2
(241.3)
|
7 5/8 REG
|
7 5/8 REG
|
3
(76.2)
|
30
(762)
|
20
(508)
|
4 3/4
(121)
|
93
(2362)
|
String
|
|
Near bit
|
|||||||||
|
28
(711.2)
|
9 1/2
(241.3)
|
7 5/8 REG
|
7 5/8 REG
|
3
(76.2)
|
30
(762)
|
20
(508)
|
4 3/4
(121)
|
93
(2362)
|
String
|
|
Near bit
|