Products > Drilling Equipment

Kelly


Product Number: KW-DE-06 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.


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KINGWELL Kelly Features & Benefits:
 
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.
KINGWELL can produce square and hexagonal Kelly as per API standard. 
 
Size: 2-1/2"-6"
Processing Type: Forging
Kelly type: square or hexagonal
Box connection type: 6 5/8 REG
Material:AISI 4142H-4145H forged or rolled alloy steel
 
KINGWELL Kelly Technical Data:
 
 
Kelly size 76.2 88.9 108 133.4 133.4 152.4 152.4
3 3 1/2 4 1/4 5 1/4 5 1/4 6   6  
Length drive 
Section
LD Standard 11280 11280 11280 11280 11280 11280 11280
LD optional     15540 15540 15540 15540 15540
Length overall L Standard 12190 12190 12190 12190 12190 12190 12190
L optional     16460 16460 16460 16460 16460
Length Drive
Section
DFL Across flate 76.2 88.9 108 133.4 133.4 152.4 152.4
DC Across cornere 85.7 100.8 122.2 151.6 175.4 173 173
DCC Across flate 85.73 100 121.44 149.86 171.45 173.02 173.02
RC Radlue 6.4 6.4 9.9 9.9 15.9 9.5 9.5
RCC Radlue 42.9 50 60.7 75 85.7 86.5 86.5
Wall thickness 
eccentric bore
12.1 13.3 15.9 15.9 15.88 15.9 15.9
Upper box
connection
Thread size
and style LF
Standard 6 5/8 REG 6 5/8 REG 6 5/8 REG 6 5/8 REG 6 5/8 REG 6 5/8 REG 6 5/8 REG
Optional 4 1/2 REG 4 1/2 REG 4 1/2 REG        
OD Du Standard 196.9 196.9 196.9 196.9 196.9 196.9 196.9
Du Optional 146.1 146.1 146.1        
Bevel 
diameter
Lu 406.4 406.4 406.4 406.4 406.4 406.4 406.4
DF Standard 186.1 186.1 186.1 186.1 186.1 186.1 186.1
DF Optional 134.5 134.5 134.5        
Lower pin
connection
Label NC26 NC31 NC38 NC46 NC50 5 1/2 FH NC56
Outsize diameter 85.7 104.8 120.7 158.8 161.9 177.8 177.8
LL 508 508 508 508 508 508 508
DF Bevel diameter 82.9 100.4 116.3 145.3 154 170.7 171.1
Inside diameter 31.8 44.5 57.2 71.4 71.4 82.6 82.6

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