Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight dril pipe and to cut spiral groove on heavy weight drill pipe.
Technical specifications and parameters
|
Specification
|
OD
|
ID
|
connection
|
Body
|
Weight
|
||||||
|
mm
|
in
|
mm
|
in
|
Style
|
OD
|
Inner and outer thread
|
Upset
|
||||
|
mm
|
in
|
Mmd
center area
|
Mm
End area
|
||||||||
|
Type I (Length is 9300mm for one piece)
|
|||||||||||
|
ZH-J66-6 5/8FH-I
|
168.3
|
6 5/8
|
114.3
|
4 1/2
|
6 5/8FH
|
209.6
|
8 1/4
|
195.70
|
184.2
|
176.21
|
965KG
|
|
ZH-J55-5 1/2FH-I
|
139.7
|
5 1/2
|
92.1
|
3 5/8
|
5 1/2FH
|
177.8
|
7
|
170.7
|
152.4
|
144.5
|
730KG
|
|
ZH-J50-NC50-I
|
127.0
|
5
|
76.2
|
3
|
NC50
|
168.3
|
6 5/8
|
154.0
|
139.7
|
130.2
|
700KG
|
|
ZH-J45-NC46-I
|
114.3
|
4 1/2
|
71.4
|
2 13/16
|
NC46
|
158.8
|
6 1/4
|
145.3
|
127.0
|
117.5
|
585KG
|
|
ZH-J35-NC38-I
|
88.9
|
3 1/2
|
52.39
|
2 1/16
|
NC38
|
120.7
|
4 3/4
|
116.3
|
101.6
|
92.1
|
370KG
|
|
ZH-J29-NC31-I
|
73.03
|
2 7/8
|
50.8
|
2
|
NC31
|
104.8
|
4 1/8
|
100.4
|
84.1
|
81.0
|
220KG
|
|
Type II (Length is 13500mm for one piece)
|
|||||||||||
|
ZH-J50-NC50-II
|
127.0
|
5
|
76.2
|
3
|
NC50
|
168.3
|
6 5/8
|
154.0
|
139.7
|
130.2
|
945
|
|
ZH-J45-NC46-II
|
114.3
|
4 1/2
|
71.4
|
2 13/16
|
NC46
|
158.8
|
6 1/4
|
145.3
|
127.0
|
117.5
|
790
|