Sinotai Petroleum Equipment Co., Ltd.
Main products:drilling rig accessories,drilling tools,wellhead tools,down hole tools,sucker rod
Products
Contact Us
  • Contact Person : Ms. Kuo Herish
  • Company Name : Sinotai Petroleum Equipment Co., Ltd.
  • Tel : 86-546-8300512
  • Fax : 86-546-8308512
  • Address : Shandong,Dongying,No.69 Dengzhou Road
  • Country/Region : China
  • Zip : 257091

API Integral spiral heavy weight drill pipe

API Integral spiral heavy weight drill pipe
Product Detailed
1. Integral Heavy Weight Drill Pipe 2. API 7-1 3.full size

The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welded hard bands. Technical parameters meet with API Spec7-1 Standard. 

size

OD

ID

Tool joint OD

Tool joint ID

Thread type

Max. elevator diameter

Central upset diameter

Min. drift diameter size

  3 1/2

3 1/2

2 1/4

2 1/16

4 3/4

(4 7/8, 5)

2 1/4

2 1/16

NC38

3 7/8

4

2

2 13/16

4

4

2 1/2

2 9/16

5 1/4

2 1/2

2 9/16

NC40

4 3/16

4 1/2

2 1/4

2 5/16

4 1/2

4 1/2

2 11/16

2 3/4

2 13/16

6 1/4

2 11/16

2 3/4

2 13/16

NC46

4 11/16

5

 

5

5

3

6 5/8

3

NC50

5 1/8

5 1/2

 

5 1/2

5 1/2

3 1/4

3 3/8

3 7/8

4

7

 (7 1/4,    7 1/2)

3 1/4

3 3/8

3 7/8

4

5 1/2 FH

5 11/16

           6                         

                                    

6 5/8

6 5/8

4

4 1/2

5

8

(8 1/4,                8 1/2)

4

4 1/2

5

 6 5/8 FH

6 15/16

7 1/8

 

API Integral spiral heavy weight drill pipe



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