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Contact:
Shawn M. Phillips

Cell:
281-795-1705

Email:
shawn@dhstx.com


Office:
30140 Waller Spring Creek Rd.
Waller, TX 77484

Phone:
936-372-9094

Fax:
866-819-3390


Shipping:
30140 Waller Spring Creek Rd.
Waller, TX 77484

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil Rig Drill String Accessories --> Crossover Subs


Circulating Subs | Couplings | Crossover Subs | Drill Collars | Drilling Jars | Drill Pipe
Drill Pipe Pup Joints | Drill Pipe Screens (Surface) | Drop in Check Valve | Float Valves
Heavy Weight Drill Pipe | Hole Openers | IBOP’s | Kelly Saver Subs | Lift Subs
Roller Reamers | Rotary Kelly | Side Entry Subs (Integral) | Side Entry Subs (Welded)
Stabilizers | Upper and Lower Kelly Valves (kelly cocks) | Washover Lifting Plug

Crossover Subs

A crossover sub is used to crossover from one connection size to another or as the disposable component used to extend the connection life of a more expensive drill stem member.

Crossover subs are available with:

  •   box x pin
  •   box x box or
  •   pin x pin connections.

Crossover Subs are manufactured from 4145M or 4140HT alloy steel.

The connections are protected by a phosphate surface coating that minimizes galling on initial make-up.

When ordering, please specify:

  • Identify sub use. Example: Kelly Sub, crossover drill pipe to drill collar, drill collar to drill collar, bit sub, etc
  • Overall length
  • Largest diameter
  • Bore ID
  • Size and type of upper and lower connections, indicating pin or box
  • Cast or pressed-steel thread protectors
  • For Reduced Section Subs, add: diameter of reduced section
  • Length of reduced section: 8", 12", 18" or 24" For Bit Subs, add: float bore size and type if desired











Circulating Subs | Couplings | Crossover Subs | Drill Collars | Drilling Jars | Drill Pipe
Drill Pipe Pup Joints | Drill Pipe Screens (Surface) | Drop in Check Valve | Float Valves
Heavy Weight Drill Pipe | Hole Openers | IBOP’s | Kelly Saver Subs | Lift Subs
Roller Reamers | Rotary Kelly | Side Entry Subs (Integral) | Side Entry Subs (Welded)
Stabilizers | Upper and Lower Kelly Valves (kelly cocks) | Washover Lifting Plug

Oilrig Drill String Accessories | Oilfield Fishing Tools | Drill Pipe Handling Tools
Oilfield Production Accessories | Miscellaneous Oilfield Tools

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Downhole Oil Tools, Inc.
30140 Waller Spring Creek Rd. Waller, TX 77484
Call --> 281-795-1705