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HOME
-
ABOUT
-
PRODUCTS
- DRILLING TOOLS
- DRILLING MOTORS
- STABILIZERS
- DRILL COLLARS
- DRILLING JARS
- HYDRAULIC AGITATOR
- ANTI STICK-SLIP TOOL
- MULTIPLE ACTIVATION BYPASS VALVE
- DRILL PIPES
- NON-ROTATING PROTECTOR
- X-OVER & SUBS
- DRILL BITS
- MICRO REAMER
- FISHING TOOLS
- RELEASING SPEAR
- RELEASING AND CIRCULATING OVERSHOT
- REVERSE CIRCULATION JUNK BASKET
- JUNK SUB
- FISHING MAGNET
- SAFETY JOINT
- TAPER TAP
- DIE COLLAR
- IMPRESSION BLOCK
- DITCH MAGNET
- MILLING SHOES
- WASHOVER PIPE
- IBOPs
- KELLY VALVE
- FLOAT VALVE
- FULL OPENING SAFETY VALVE
- TOP DRIVE IBOP
- INSIDE BOP
- DROP-IN CHECK VALVE
- WELLBORE CLEANING TOOLS
- CASING SCRAPER
- NON-ROTARY CASING SCRAPER
- CASING BRUSH
- CUTTING BED IMPELLER
- STRING MAGNET
- ROTARY CASING GUIDER
- CASING CUTTER
- SECTION MILL
- WELLHEAD TOOLS
- ELEVATORS
- ELEVATOR LINKS
- POWER TONGS
- MANUAL TONGS
- SLIPS
- SPIDERS
- SPINNING WRENCH
- BUSHINGS
- DRILLING EQUIPMENTS
- MUD PUMP
- VALVE SEAT AND BODY
- PISTON
- CYLINDER LINER
- HYDRAULIC BUCKING UNIT
- JAR TESTER
- FRAC PUMP VALVE RUBBER
- FRAC PUMP VALVE BODY
- FRAC PUMP VALVE SEAT
- FRAC PUMP PLUNGER PACKING
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PRESS
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CONTACT
KELLY
TECHNICAL SUMMARY
Square&hexagonal kelly are two common types of drilling tools used in the oil and gas industry. Both designs offer excellent torque transmission and drilling efficiency. The Square Kelly features a four-sided shape, while the Hexagonal Kelly has six sides, providing increased contact points for improved power transfer. These sturdy and reliable drilling equipment options are utilized to connect the rotary table to the drill string, enabling the rotation of the drill bit for effective and precise drilling operations.
SQUARE KELLY
HEXAGONAL KELLY
SPECIFICATION
|
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 |
/ |
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 4/5 |
2 1/4 |
5 4/7 |
4 4/5 |
|
6 5/8REG 7 3/4 |
4 1/2REG 5 3/4 |
NC50 6 3/8 |
NC38 4 3/4 |
2 4/5 |
2 1/4 |
5 4/7 |
4 4/5 |
|
|
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 4/5 |
|
6 5/8REG 7 3/4 |
/ |
/ |
NC56 7 |
/ |
3 1/2 |
/ |
6 4/5 |
|
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