Rig No. 31

  Capable of efficiently drilling depths of 13,000'
Using 4 ½" drill pipe
 

 

  • National 55 Drawworks with Parmac 342-A Hydromatic Brake powered by Two Waukesha F-2896 Diesel Engines rated at 500 HP each with 27” Twin Disc Fluid Couplings

  • 136’ x 18.6’ Drilling Structures Jackknife Derrick with 15’ 6” clearance under Rotary Beams, Capacity 550,000#

  • 2 – Emsco F-1000  6” x 10” Triplex Pump independently driven by Caterpillar 3508 Diesel Engine rated at 915 HP

  • 27 1/2" Oil well Rotary Table

  • Shaffer Type LWS 11”-5,000 #   hydraulically operated Double Gate Blowout Preventer,  5,000# working pressure, with 4-1/2" and C.S.O. rams

  • 11” – 5,000# GK Hydril Preventer.

  • Two – 3412 CATS, 520KW/460KW

  • Vapor Proof Lighting System

  • Two Steel Mud Tanks, 920 Bbl capacity

  • 2 - Brandt King Cobra Linear Shakers

  • Brandt 2-Cone Desander

  • Brandt 16-Cone Desander

  • 1300’  4-1/2”OD x 16.60# Grade E Drill Pipe and 8,500’  4-1/2” OD 16.60# Grade G Drill Pipe with  4-1/2” Extra Hole Connections.

  • 18 6-1/8", 6-1/2" OD  x 2 - 13/16" ID x 30'  long Drill Collars with 4 - 1/2" Extra Hole Connections; 2 - 8" OD Drill Collars with 6-5/8"  Regular Connections

  • 450 Bbl Water Tank

  • 100 HP Boiler

  • Trailer House