Rotary Kelly

4145H Modified

Square

Hexagonal

2 ½” to 6”

Top Connection

6 5/8” Reg LH 7 ¾”

4 1/2” Reg LH 5 ¾”

Bottom Connection

NC 26 NC31 NC 38 NC 46 NC50 NC56

Drill Pipe

2 3/8” to 6 5/8”

Grades

E X G S

Ext Upset

Int Upset

Int-Ext Upset

 

Integral Heavy Weight Drill pipe

4145 Modified quenched & tempered Steel

Sizes

3 ½” to 6 5/8”

Connection

NC 38 NC40 NC 46 NC 50

5 ½” FH 6 5/8” FH

Hard Banding or Internal Coating

Drill Collar

4145H Quenched & Tempered Steel

Slick

Spiral

NC23-31 NC26-35(2 3/8 IF) NC31-41(2 7/8 IF)

NC35-47 NC38-50(31/2IF) NC44-60

NC44-60 NC44-62 NC44-62(4IF)

NC44-65(4IF) NC44-65(4IF) NC44-67(4IF)

NC50-67(41/2IF) NC50-70(41/2IF) NC50-70(41/2IF)

NC50-72(41/2IF) NC56-80 NC61-90

NC70-97 NC70-100

Spiral Drill Collar with elevator groove & slip

Non Magnetic Drill Collar

 

Stabilizers

Integral Blade Sprial

Integral Blade Straight

Integral Blade Non Magnetic

Replaceable Sleeve

Non Rotating

Bit size 6” to 28”

Connections

NC 38 NC 46 NC 50

3 ½” REG 4 ½” REG 6 5/8” REG 7 5/8” REG

 

Reamers

Hole Openers

Kelly Valves

Full Opening Safety Valves

Inside BOP Valves

Drop In Check Vavles

Arrow Type Back Pressure Valves

Float Valve Sub

Rotary Subs

drillstring14
drillstring13
drillstring11
drillstring1
drillstring12
drillstring
drillstring19
drillstring17
drillstring15
drillstring16
drillstring18