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TRI-SPIRAL INTEGRAL HEAVY WEIGHT DRILL PIPE

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TRI-SPIRAL INTEGRAL HEAVY WEIGHT DRILL PIPE
0.0 Yuan 0.0 Yuan
Product description

TRI-SPIRAL INTEGRAL HEAVY WEIGHT DRILL PIPE

Integral heavy weight drill pipe is manufactured from AISI 4142H-4145H modified drill collar material according to SY/T 5146-1997,thick-walled pipe called integral heavy weight drill pipe was developed to provided a gradual transition from the heavy drill collars to the relatively light weight drill pipe. This intermediate weight pipe with a wall thickness helps to prevent stress concentration at the top of the drill collars. It also allows you to drill at higher rpm, reduce torque and differential pressure sticking. It is intended primarily for directional drilling. Due to bends easily, it simplifies directional control and minimizes connection fatigue problems common to high angle or horizontal drilling. The reduced number of pipe failures and increased drill stem service also make it appropriate for some straight-hole applications.  

Hardbanding

The wear-resistance hardbanding is standard on tool joints connections and central upset. Hardbanding is made by an automatic machine after preheating the pipe and is followed by stress relieving.

The Type of handbanding includes Iron-Matrix powder alloy, Tungsten Carbide particle, and Arnco 100XT.

Standard Bands:

· One 4" wears band on both pin and box ends, plus one 1" band on 18 degree shoulder of box.

· Two 3" wear bands on central upsets

· The hardbanding is completing flush on both joints and 1/8" oversize on the central upset (full flush on request).

Internal Coating: The HWDP could be internally coated with DPC (Equivalent to TK34) as customers request which are able to prevent corrosion and extend life.

Order Instruction:

· Nominal Size

· Range

· Hardbanding type

· Internal coating if required.

· Extra-long tool joints if required.

· API Stress relief recess.

 

Integral heavy weight drill pipe

Size

Outside Diameter C

Inside Diameter E

Connection

Body

Single of Weight KG

Type

Outside Diameter

Bevel edge Of pin and box shoulder DF mm

Upset Section Size

Central Section D mm

End Section B mm

mm

in

mm

in

I Type

ZH-JZ55-51/2FH-I

139.7

5 1/2

5 1/2FH

92.1

3 5/8

170.7

152.4

144.5

730

ZH-JZ50-NC50-I

127.0

5

NC50(4 1/2IF)

76.2

3

154.0

139.7

130.2

700

ZH-JZ45-NC46-I

114.3

4 1/2

NC46(4IF)

71.4

2 13/16

145.3

127.0

117.5

585

ZH-JZ35-NC38-I

88.9

3 1/2

NC38

52.39

2 1/16

116.3

101.6

92.1

370

II Type

ZH-JZ50-NC50-II

 

 

NC50(4 1/2IF)

165.1

6 1/2

154.0

139.7

130.2

945

ZH-JZ45-NC46-II

 

 

NC46(4IF)

158.8

6 1/4

145.3

127.0

117.5

790

Integral heavy weight drill pipe

 

Mechanical Property

Yield strength2

Tensile strengthb

Elongation4(%)

Hardness(Brinell)

IMPACT VALUE(CHARPY-V)

758

964

13

285--341

54

 

Tri-spiral Integral heavy weight drill pipe

Size

Outside Diameter C

Inside Diameter E

Tool Joint

Pipe

Single of Weight kg

Type

Outside Diameter A

Bevel edge Of pin and box shoulder DF mm

Upset Section Size

mm

in

mm

in

mm

in

Center Section D mm

End Section B mm

I Type(9300mm)

ZH-LJZ55

139.7

5 1/2

92.1

3 5/8

5 1/2FH

177.8184.2

77 1/4

170.7

152.4

144.5

850

ZH-LJZ55

127.0

5

76.2

3

NC50(4 1/2 IF)

165.1168.3

6 1/26 5/8

154.0

139.7

130.2

735

ZH-LJZ55

114.3

4 1/2

71.4

2 13/16

NC46(4IF)

158.8

6 1/4

145.3

127.0

117.5

615

ZH-LJZ55

88.9

3 1/2

52.39

2 1/16

NC38(3 1/2IF)

120.7

4 3/4

116.3

101.6

92.1

375

 

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OILRIG warrants our products for a period of one year to be free from defective material and workmanship. OILRIG's products equal or exceed the quality and tolerances of the products provided by the original manufacturer. 

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