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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.
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Standard
Hevi-Wate
Drill
Pipe
|
Spiraled
Hevi-Wate
Drill Pipe |
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Standard
Sizes for Integral Heavy Wall Drill Pipe
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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
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0.625
|
5.645
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4
|
24
|
3-5/8
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NC38
(3-1/2IF)
|
4-3/4
|
2-3/8
|
25/23
|
23.2
|
695
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|
4
|
30.5
|
2-3/4
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0.625
|
06.627
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4-1/2
|
24
|
4-1/8
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NC40
(4IF)
|
5-1/4
|
2-11/16
|
25/23
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27.2
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815
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4-1/2
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30.5
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2-3/4
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0.875
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9.965
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5
|
24
|
4-5/8
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NC46
(4IF)
|
6-1/4
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2-7/8
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25/23
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41.0
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1,230
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|
5
|
30.5
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3
|
1.000
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12.566
|
5-1/2
|
24
|
5-1/8
|
NC50
(4-1/2IF)
|
6-5/8
|
3-1/16
|
25/23
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49.7
|
1,480
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5-1/2
|
30.5
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3-3/8
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1.063
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14.812
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6
|
24
|
5-11/16
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5-1/2FH
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7
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3-1/2
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25/23
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57.0
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1,710
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6-1/2
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30.5
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4-1/2
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1.063
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18.567
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7-1/8
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24
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6-1/8
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6-5/8FH
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8
|
4-1/2
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25/23
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70.8
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2,125
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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
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2-1/4
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0.625
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5.645
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4
|
18.5
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3-5/8
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NC38
(3-1/2IF)
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4-3/4
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2-3/8
|
25/23
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26.7
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800
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4
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30.5
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2-3/4
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0.625
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06.627
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4-1/2
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18.5
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4-1/8
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NC40
(4IF)
|
5-1/4
|
2-11/16
|
25/23
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31.0
|
930
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4-1/2
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30.5
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2-3/4
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0.875
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9.965
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5
|
18.5
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4-5/8
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NC46
(4IF)
|
6-1/4
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2-7/8
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25/23
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45.0
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1,350
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5
|
30.5
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3
|
1.000
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12.566
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5-1/2
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18.5
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5-1/8
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NC50
(4-1/2IF)
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6-5/8
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3-1/16
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25/23
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54.0
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1,620
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5-1/2
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30.5
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3-3/8
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1.063
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14.812
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6
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18.5
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5-11/16
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5-1/2FH
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7
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3-1/2
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25/23
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62.7
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1,880
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6-5/8
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30.5
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4-1/2
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1.063
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18.567
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7-1/8
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18.5
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6-1/8
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6-5/8FH
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8
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4-1/2
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25/23
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76.3
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2,290
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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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