Heavy Weight Drill Pipe
Size:Outer Diameter: 2 7/8” – 6 5/8”
Lengths: Range 2 and Range 3
Pipe Standard:API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q,API 5CT and 5B L80-1,C90, C95,T95, P110, Q125
End Finishes:Internal Upset, External Upset, Plain End Upset, Non Upset
Tool Joint type:NC38、NC46、NC50、5-1/2 FH
Classification :
Heavy Weight Drill Pipe
PRODUCT DETAILS
Description
A Heavy Weight Drill Pipe (HWDP) looks like a normal drill pipe except for an upset centered along the tube which helps to prevent excessive buckling.
HWDP is used as a transitional stiffness section, typically between the stiff and rigid drill collars and the relatively light and flexible drill pipe joints to reduce fatigue failures directly above the bottom hole assembly.
Its wall thickness is up to 3 times that of a similar-sized normal drill pipe to add additional weight to the bit.
HWDP is used most commonly in directional drilling because it bends more easily and helps to control torque and fatigue in high-angle operations.
HWDP is manufactured in accordance with API Spec. 7/7-1 guidelines.
Steel Grade:
Integral HWDP : AISI 4145HM
Welded HWDP : AISI 1340 pipe body, AISI 4140HM tool joint
Sizes Range:
Outer Diameter: 2 7/8” – 6 5/8”
Weight Range: 6.27#/FT through 27.72#/FT
Lengths: Range 2 and Range 3
End Finishes: Internal Upset, External Upset, Plain End Upset, Non Upset
Tool Joint type：NC38、NC46、NC50、5-1/2 FH
Specification&Standard
Standard heavy weight drill pipe
|
Size(in) |
O.D. (in) |
I.D. (in) |
Tool Joint O.D. (in) |
Tool Joint I.D. (in) |
Connection |
Max.elevator diameter (in) |
Central upset dia. (in) |
Min.drift dia.size(in) |
|
3 1/2 |
3 1/2 |
2 1/4 |
4 3/4 |
2 1/4 |
NC38 |
3 7/8 |
4 |
2 |
|
2 1/16 |
2 1/16 |
113/16 |
||||||
|
4 |
4 |
2 1/2 |
5 1/4 |
2 1/2 |
NC40 |
4 3/16 |
4 1/2 |
2 1/4 |
|
2 9/16 |
2 9/16 |
2 5/16 |
||||||
|
4 1/2 |
4 1/2 |
2 11/16 |
6 1/4 |
2 11/16 |
NC46 |
4 11/16 |
5 |
2 7/16 |
|
2 3/4 |
2 3/4 |
2 1/2 |
||||||
|
2 13/16 |
2 13/16 |
2 9/16 |
||||||
|
5 |
5 |
3 |
6 5/8 |
3 |
NC50 |
5 1/8 |
5 1/2 |
2 3/4 |
|
5 1/2 |
5 1/2 |
3 1/4 |
7 |
3 1/4 |
5 1/2 FH |
5 11/16 |
6 |
3 |
|
3 3/8 |
3 3/8 |
3 1/8 |
||||||
|
3 7/8 |
3 7/8 |
3 5/8 |
||||||
|
4 |
4 |
3 3/4 |
||||||
|
6 5/8 |
6 5/8 |
4 |
8 |
4 |
65/8 FH |
6 15/16 |
7 1/8 |
3 3/4 |
|
4 1/2 |
4 1/2 |
4 1/4 |
||||||
|
5 |
5 |
4 3/4 |
Spiral heavy weight drill pipe
|
Spiral heavy weight drill pipe |
||||||||
|
Specification mm |
Tube |
Joint |
||||||
|
ID mm |
Elevator upsetmm |
elevator groove |
Screw in diametermm |
Spiral groove depthmm |
Thread Type |
OD mm |
ID mm |
|
|
88.9(3 1/2) |
54 |
92.1 |
88.9 |
101.6 |
9.5 |
NC38 |
120.6 |
54 |
|
114.3(4 1/2) |
69.8 |
117.5 |
114.3 |
127 |
12.7 |
NC46 |
158.8 |
69.8 |
|
127.0(5) |
76.2 |
130.2 |
127 |
139.7 |
12.7 |
NC50 |
165.1 |
76.2 |
OCTL Heavy Weight Drill Pipe is manufactured in compliance with API 7-1 and in API RP7G.
Process
Packing
Packaging and delivery
The company has the Shandong Dayang Steel Pipe Production Base Warehouse Area, Dadong Steel Pipe City Boutique Goods Yard Sales Area, etc., with an annual inventory of 70,000 tons.The annual round steel trade volume is 650,000 tons, with 50,000 tons of spot goods throughout the year, and the output value is about 6 billion yuan. The factory has eight pipe expansion production lines, mainly producing 300-1500mm outer diameter, with an annual output of 80,000 tons.
Customer visit
Adhering to the tenet of "strict management, good reputation, strong strength, and high-quality service", the company serves customers and friends at home and abroad with high standards of scientific environmental protection, professional innovation, and currently exports to more than 150 countries and regions in Europe, America, South America, the Middle East, Asia, etc., and the products are well received by everyone!
Factory
The factory focuses on the research and development and manufacturing of seamless steel pipes, oil casing processing for oil fields and gas cylinder steel pipe products. It currently has one hot-rolled seamless steel pipe production line. The production process of the hot-rolled seamless steel pipe production line adopts conical perforation, precision pipe rolling and three-roller micro-tension sizing. The production specifications are: Φ50-Φ273mm, wall thickness: 4.5-40mm, and the online equipped ultrasonic flaw detection system, eddy current flaw detection system and other product detection systems have reached the industry leading level.
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Chida Road Donger County Liaocheng City Shandong China
