Integral Heavy Wall Drill Pipe

 

Material of our integral HWDP is from AISI 4145H high purity steel, fully heat treated. All physical properties conform with API SPEC 7 latest revised edition. The integral HWDP is an intermediate-weight drillstring member with drill pipe dimensions for easier handing, and it reduce effectively stress between drill pipes and drill collars, meanwhile, providing part of pressure of string. Its special extra-length tool joints are able to provide ample space for re-cutting the connection and reduce the rate of wear on the OD. The OD of the tube is also protected from abrasive wear with a center wear pad.

 

Standard Hevi-Wate
Drill Pipe

Spiraled Hevi-Wate
Drill Pipe

 

 

Standard Sizes for Integral Heavy Wall Drill Pipe

Nom
Size
Approx Over- Length
(ft.)
Tube
Tool joint
Weight incl. Tube & Joints (lbs)
ID
Wall thick-ness
Area (in.)
Center upset OD
Center upset length
elevator upset
Connection size
OD
ID
Approx Over-Length Pin/Box
Wt./ft.
Wt./
Joint
30ft.
3-1/2
30.5
2-1/4
0.625
5.645
4
24
3-5/8
NC38 (3-1/2IF)
4-3/4
2-3/8
25/23
23.2
695
4
30.5
2-3/4
0.625
06.627
4-1/2
24
4-1/8
NC40 (4IF)
5-1/4
2-11/16
25/23
27.2
815
4-1/2
30.5
2-3/4
0.875
9.965
5
24
4-5/8
NC46 (4IF)
6-1/4
2-7/8
25/23
41.0
1,230
5
30.5
3
1.000
12.566
5-1/2
24
5-1/8
NC50 (4-1/2IF)
6-5/8
3-1/16
25/23
49.7
1,480
5-1/2
30.5
3-3/8
1.063
14.812
6
24
5-11/16
5-1/2FH
7
3-1/2
25/23
57.0
1,710
6-1/2
30.5
4-1/2
1.063
18.567
7-1/8
24
6-1/8
6-5/8FH
8
4-1/2
25/23
70.8
2,125

 


Standard Sizes For Spiral Integral Heavy Wall Drill Pipe

Nom
Size
Approx Over- Length
(ft.)
Tube
Tool joint
Weight incl. Tube & Joints (lbs)
ID
Wall thick-ness
Area (in.)
Center upset OD
Center upset length
elevator upset
Connection size
OD
ID
Approx Over-Length Pin/Box
Wt./ft.
Wt./
Joint
30ft.
3-1/2
30.5
2-1/4
0.625
5.645
4
18.5
3-5/8
NC38 (3-1/2IF)
4-3/4
2-3/8
25/23
26.7
800
4
30.5
2-3/4
0.625
06.627
4-1/2
18.5
4-1/8
NC40 (4IF)
5-1/4
2-11/16
25/23
31.0
930
4-1/2
30.5
2-3/4
0.875
9.965
5
18.5
4-5/8
NC46 (4IF)
6-1/4
2-7/8
25/23
45.0
1,350
5
30.5
3
1.000
12.566
5-1/2
18.5
5-1/8
NC50 (4-1/2IF)
6-5/8
3-1/16
25/23
54.0
1,620
5-1/2
30.5
3-3/8
1.063
14.812
6
18.5
5-11/16
5-1/2FH
7
3-1/2
25/23
62.7
1,880
6-5/8
30.5
4-1/2
1.063
18.567
7-1/8
18.5
6-1/8
6-5/8FH
8
4-1/2
25/23
76.3
2,290

Note: Spiral grooves of integral HWDP are the same with drill collars which sizes and shape are shown as above related table and diagram.

 

 

 
 


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