• Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment
  • Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment
  • Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment
  • Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment
Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment

Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment

Product Details:

Place of Origin: China
Brand Name: OilMan
Certification: ISO
Model Number: Square Kelly & Hexagonal Kelly

Payment & Shipping Terms:

Minimum Order Quantity: 5 pcs
Price: USD800-2000/pc
Packaging Details: In Bundles
Delivery Time: 20-30 days
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 500 pcs per month
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Detail Information

Product Name: Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment Keywords: Square Kelly
Application: Oil & Gas Well Drilling Hardness: 285 To 341 BHN
Size: 3", 3-1/2", 4-1/4", 5-1/4", 6" Material: AISI 4145H

Product Description

Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment

 

Kelly is the main driver of the whole drill string.It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole. Kelly is a long square or hexagonal.precision machined heavy steel bar that is supported by the swivel through the rotary table and is connected to the first joint of drill pipe in the drill string.

Straightness of the kelly is very crucial in the manufacturing process, thus straightness inspection are carried out before, during and after each machining operation. The flats are precision-milled to API specification.All milling processes are performed on specially designed rigid kelly mills to ensure tight tolerances and high quality drive section.Each kelly is furnished with a pressed steel thread protectors.

Features and Benefits

Manufactured from AISI4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHN and a minimum average Charpy impact value of 40ft-Ibs;

Ends and drive section,IDs and connections machined and inspected to API specification;

Ultrasonic inspection is performed on all section;

Shipped in a protective steel -cased scabbard;

When ordering please specify:

Kelly type (Square or hexagonal)

Nominal size and overall length

Upper and lower connection

Technical specification and parameters

STANDARD SIZE FOR SQUARE KELLY
Size (in) Length (ft) Top upset joint Bottom upset Bore Drive Section Weight
A B LH OD C (in) RH OD (in) E (in) F (in) G (in) (Ib)
   
2 1/2 40 37 6 5/8" Reg 7 3/4 2 3/8 IF 3 3/8 1 1/4 3 1/4 2 1/2 902
  46 43 6 5/8" Reg 7 3/4 2 3/8 IF 3 3/8 1 1/4 3 1/4 2 1/2 1023
3 40 37 6 5/8" Reg Apr-73 2 7/8IF 4 1/8 1 3/4 3 7/8 3 1089
  46 43 6 5/8" Reg 7 3/4 2 7/8IF 4 1/8 1 3/4 3 7/8 3 1232
3 1/2 40 37 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 7/16 3 1/2 1320
  46 43 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 7/16 3 1/2 1474
  54 51 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 7/16 3 1/2 1716
4 1/4 40 37 6 5/8" Reg 7 3/4 4 IF 6 2 13/16 5 1/2 4 1/4 1815
  46 43 6 5/8" Reg 7 3/4 4 IF 6 2 13/16 5 1/2 4 1/4 2068
  54 51 6 5/8" Reg 7 3/4 4 IF 6 2 13/16 5 1/2 4 1/4 2354
5 1/4 40 37 6 5/8" Reg 7 3/4 NC50 7 3 1/4 6 7/8 5 1/4 2750
  46 43 6 5/8" Reg 7 3/4 NC50 7 3 1/4 6 7/8 5 1/4 3146
  54 51 6 5/8" Reg 7 3/4 NC50 7 3 1/4 6 7/8 5 1/4 3674
6 40 37 6 5/8" Reg 7 3/4 6 5/8 FH 8 3 1/2 7 5/8 6 3674
  46 43 6 5/8" Reg 7 3/4 6 5/8 FH 8 3 1/2 7 5/8 6 6 4224
  54 51 6 5/8" Reg 7 3/4 6 5/8 FH 8 3 1/2 7 5/8 6 4950
STANDARD SIZE FOR HEX KELLY
Size Length (ft) Top upset joint Bottom upset Bore Drive Section Weight
(in) A B LH OD C (in) RH OD (in) E (in) F (in) G (in) (lb)
3 40 37 6 5/8" Reg 7 3/4 2 3/8IF 3 3/8 1 1/2 3 3/8 3 990
  46 43 6 5/8" Reg 7 3/4 2 3/8IF 3 3/8 1 1/2 3 3/8 3 1100
3 1/2 40 37 6 5/8" Reg 7 3/4 2 7/8IF 4 1/8 1 3/4 4 15/16 3 1/2 1276
  46 43 6 5/8" Reg 7 3/4 2 7/8IF 4 1/8 1 3/4 4 15/16 3 1/2 1474
  54 51 6 5/8" Reg 7 3/4 2 7/8IF 4 1/8 1 3/4 4 15/16 3 1/2 1716
4 1/4 40 37 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 25/32 4 1/4 1650
  46 43 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 25/32 4 1/4 1848
  54 51 6 5/8" Reg 7 3/4 3 1/21F 4 3/4 2 1/4 4 25/32 4 1/4 2156
5 1/4 40 37 6 5/8" Reg 7 3/4 4 IF 6 213/16 5 29/32 5 1/4 2244
  46 43 6 5/8" Reg 7 3/4 4 IF 6 2 13/16 5 29/32 5 1/4 2574
  54 51 6 5/8" Reg 7 3/4 4 IF 6 2 13/16 5 29/32 5 1/4 2970
6 40 37 6 5/8" Reg 7 3/4 4 1/2IF 7 3 1/2 6 13/16 6 2904
  46 43 6 5/8" Reg 7 3/4 4 1/2IF 7 3 1/2 6 13/16 6 3300
  54 51 6 5/8" Reg 7 3/4 4 1/21F 7 3 1/2 6 13/16 6 3894

 

KELLY COCK
                     
OD: 4 3/4, 5 5/16, 6 5/8, 7, 7 1/4, 7 3/4, 8 inch. The body is made of a single piece of forged AISI 4145 H modified alloy steel, full treated to 285-341 Brinell Hardness and 40 ft-lb

 

Rotary Square Kelly/Hexagonal Kelly Of Oil Drilling Equipment 0

 

Any enquiry please contact us by email: christal@oilmancn.com.

Visit our website: www.oilmanchina.com for more products information.

WhatsApp/WeChat:+86 13475294399

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