Kelly

FZ series Kelly are used to connect the topmost joint of drill pipe for drill stem turning when the rotary table runs. Suitable for onshore and offshore drilling.

Details

The FZ series kelly were developed to provide the market with more reliable technology and more hoisting performance. Used to connect the topmost joint of drill pipe for drill stem turning when the rotary table runs. Both square kelly and hexagonal kelly available. Included but not limited by the advantages mentioned, FZ series kelly might be your best choice.

 

General Features

•  Manufactured according to API 7K
•  Suitable for onshore or offshore rigs
•  Suitable for cold area and desert environment

 

Main Paramaters

Size: 2-1/2” – 6” (63.5 mm – 152.4 mm)

Parameters:

Square Kelly

Kelly Size   Upper box connection(LH) Lower pin connection(RH) Driving section length Overall Length
in mm Thread O.D. mm ±0.8 B.D. mm ±0.4 Upper upset length mm Thread O.D. mm ±0.8 ID. mm B.D. mm ±0.4 Lower upset length mm mm mm
2.1/2 63.5 Standard 6 5/8 REG 196.8 186.1 406.4 NC26 85.7 31.8 83 508 11280 12190
2.1/2 63.5 optional 4 1/2 REG 146 134.5 406.4 NC26 85.7 31.8 83 508 11280 12190
3 76.2 Standard 6 5/8 REG 196.8 186.1 406.4 NC31 104.8 44.4 100.4 508 11280 12190
3 76.2 optional 4 1/2 REG 146 134.5 406.4 NC31 104.8 44.4 100.4 508 11280 12190
3.1/2 88.9 Standard 6 5/8 REG 196.8 186.1 406.4 NC38 120.6 57.2 116.3 508 11280 12190
3.1/2 88.9 optional 4 1/2 REG 146 134.5 406.4 NC38 120.6 57.2 116.3 508 11280 12190
4.1/4 108 Standard 6 5/8 REG 196.8 186.1 406.4 NC46 158.8 71.4 145.2 508 11280 12190
4.1/4 108 Standard 6 5/8 REG 196.8 186.1 406.4 NC50 161.9 71.4 154 508 11280 12190
4.1/4 108 optional 6 5/8 REG 196.8 186.1 406.4 NC46 158.8 71.4 145.2 508 15540 16460
4.1/4 108 optional 6 5/8 REG 196.8 186.1 406.4 NC50 161.9 71.4 154 508 15540 16460
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC46 158.8 71.4 145.2 508 11280 12190
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC50 161.9 71.4 154 508 11280 12190
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC46 158.8 71.4 145.2 508 15540 16460
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC50 161.9 71.4 154 508 15540 16460
5.1/4 133.4 Standard 6 5/8 REG 196.8 186.1 406.4 5 1/2FH 177.8 82.6 170.6 508 11280 12190
5.1/4 133.4 Standard 6 5/8 REG 196.8 186.1 406.4 NC56 177.8 82.6 171 508 11280 12190
5.1/4 133.4 optional 6 5/8 REG 196.8 186.1 406.4 5 1/2FH 177.8 82.6 170.6 508 15540 16460
5.1/4 133.4 optional 6 5/8 REG 196.8 186.1 406.4 NC56 177.8 82.6 171 508 15540 16460

 

Hexagonal Kelly

Kelly Size   Upper box connection(LH) Lower pin connection(RH) Driving section length Overall Length
in mm Thread O.D. mm ±0.8 B.D. mm ±0.4 Upper upset length mm Thread O.D. mm ±0.8 ID. mm B.D. mm ±0.4 Lower upset length mm mm mm
3 76.2 Standard 6 5/8 REG 196.9 186.1 406.4 NC26 85.7 31.8 82.9 508 11280 12190
3 76.2 optional 4 1/2 REG 146 134.5 406.4 NC26 85.7 31.8 82.9 508 11280 12190
3.1/2 88.9 Standard 6 5/8 REG 196.9 186.1 406.4 NC31 104.8 44.4 100.4 508 11280 12190
3.1/2 88.9 optional 4 1/2 REG 146 134.5 406.4 NC31 104.8 44.4 100.4 508 11280 12190
4.1/4 108 Standard 6 5/8 REG 196.9 186.1 406.4 NC38 120.6 57.2 116.3 508 11280 12190
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC38 120.6 57.2 116.3 508 11280 12190
4.1/4 108 optional 6 5/8 REG 196.9 186.1 406.4 NC38 120.6 57.2 116.3 508 15540 16460
4.1/4 108 optional 4 1/2 REG 146 134.5 406.4 NC38 120.6 57.2 116.3 508 15540 16460
5.1/4 133.4 Standard 6 5/8 REG 196.9 186.1 406.4 NC46 158.8 76.2 145.2 508 11280 12190
5.1/4 133.4 Standard 6 5/8 REG 196.9 186.1 406.4 NC50 161.9 82.6 154 508 11280 12190
5.1/4 133.4 optional 6 5/8 REG 196.9 186.1 406.4 NC46 158.8 76.2 145.2 508 15540 16460
5.1/4 133.4 optional 6 5/8 REG 196.9 186.1 406.4 NC50 161.9 82.6 154 508 15540 16460
6 152.4 Standard 6 5/8 REG 196.9 186.1 406.4 5 1/2FH 177.8 88.9 170.6 508 11280 12190
6 152.4 Standard 6 5/8 REG 196.9 186.1 406.4 NC56 177.8 88.9 171 508 11280 12190
6 152.4 Standard 6 5/8 REG 196.9 186.1 406.4 5 1/2FH 177.8 88.9 170.6 508 15540 16460
6 152.4 Standard 6 5/8 REG 196.9 186.1 406.4 NC56 177.8 88.9 171 508 15540 16460

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