Tel: +86-29-87872212
Categories

Shaanxi Gaoton Petroleum Machinery Co.,Ltd

Tel:0086-29-87872212

Fax:0086-29-87872212

Email:sales@sxgtpm.com

Skype:celiawangyanatxa

Mobile:008613402943512


Rotary Kelly ( Square Kelly, Hexagonal Kelly )

Rotary Kelly ( Square Kelly, Hexagonal Kelly )

Rotary Kelly Kelly is the drive part of whole drill string, it transmit the torsional energy from the rotary table to the bit in the bottom of the hole. Threads is phosphated, and each Kelly is furnished with a pressed steel thread protectors. Kelly shall be either square or hexagon and...

Detailed description

Rotary Kelly


Kelly is the drive part of whole drill string, it transmit the torsional energy from the rotary table to the bit in the bottom of the hole. Threads is phosphated, and each Kelly is furnished with a pressed steel thread protectors. Kelly shall be either square or hexagon and conform to the size and dimensions as per API Standard.


Material: AISI 4145H-Mod.

Standard: API 7-1 and NS-1

Type: Square Kelly and hexagonal Kelly

Package: in a protective steel-cased scabbard


Please specify when ordering:

•Kelly type: Square Kelly or Hexagonal Kelly;

•Nominal size and overall length;

•Upper and lower Connections.

Technical Parameters--Rotary Kelly

Nom Size

      (in)

Top Connection(LH)

Bottom      Connection


I.D.(in)Drive Section(in)

Standard  O.D.(in)

Optional O.D.(in)

Square    O.D.(in)

Hex.   O.D.(in)

Square

Hex.

A

B

2 1/2

6 5/8REG    7 3/4

4 1/2REG     5 3/4

NC26 85.7


1 1/4


3 2/7


3

6 5/8REG    7 3/4

4 1/2REG     5 3/4

NC31 4 1/8

NC26    3 3/8

1 3/4

1 1/4

4

3 3/8

3 1/2

6 5/8REG    7 3/4

4 1/2REG     5 3/4

NC38 4 3/4

NC31    4 1/8

2 1/4

1 3/4

4 1/2

4

 

4 1/4

6 5/8REG    7 3/4

4 1/2REG     5 3/4

NC46 6 1/4

NC38    4 3/4

2 13/16

2 1/4

5 9/16

4 25/32

6 5/8REG    7 3/4

4 1/2REG     5 3/4

NC50 6 3/8

NC38    4 3/4

2 13/16

2 1/4

5 9/16

4 25/32

 

5 1/4

6 5/8REG    7 3/4


5 1/2FH 7

NC46    6 1/4

3 1/4

3

7

6

6 5/8REG    7 3/4


NC56 7

NC50    6 3/8

3 1/4

3 1/4

7

6

 

6

6 5/8REG    7 3/4



5 1/2FH 7


3 1/2


6 13/16

6 5/8REG    7 3/4



NC56 7


3 1/2


6 13/16

If you have any further requirements, please feel free to contact us by sales@sxgtpm.com

Within those famous China oil and gas rotary kelly manufacturers, GAOTON is a professional such supplier, producer and provider, welcome to wholesale petroleum and oilfield API rotary kelly from our factory.

Related Products
Feedback