Drilling Performance Equipment and Tools

Shock Sub

Hole Quality Enhancement Tools

Roller Reamers

Rig Replaceable Sleeve-Type Stabilizer

Integral Blade/Rotary Steerable Stabilizer

Welded Blade Stabilizer

Key Seat Wipers

Hole Openers

StaBReamer® Combo Tool

Bottom Hole Assembly/Work-String Components

Steel Drill Collars

Non-Magnetic Drill Collars

Heavy Weight Drill Pipe

Rotary Kellys

Rotary Subs

Square Drill Collars and Tri-Collars

JA Oilfield Kellys are manufactured from 4145H modified quenched and tempered forged bar with a hardness range of 285 to 341 BHN and a minimum Charpy V-notch impact value of 40 foot-pounds are guaranteed one inch below the surface at room temperature. All kellys meet mechanical properties listed in Table 15 API RP 7G.

Both ends and the center drive section are full length machined. All kellys are precision bored by trepanning to provide true bores and are drifted to API specifications. When applicable, all Kellys are stamped with the API monogram.

All Hex and Square Kellys are provided installed in a shipping scabbard to protect the milled area during transit, and furnished with a pressed steel thread protectors.

Standard lengths are: 40”, 43”, 46” and 54”.

How to Order

1. Type of Kelly: Hexagonal or Square Kelly
2. Nominal Size
3. Length - Overall
4. Length – Working Headroom
5. Size and Type of Top Connections
6. Size and Type of Bottom Connection
7. Top Upset – OD
8. Bottom Upset – OD
9. If Shipping Scabbard is required