Drill Bit

The cutting or boring element used in drilling oil and gas wells. Most bits used in rotary drilling are roller-cone bits. The bit consists of the cutting elements and the circulating element.The circulating element permits the passage of drilling fluid and uses the hydraulic force of the fluid stream to improve drilling rates.


Kelly Spinner

A device for spinning the drill pipe. Replaces the spinning chain.



Rotary Table

The principal component of a rotary, or rotary machine, used to turn the
drill stem and support the drilling assembly. It has a beveled gear arrangement to create the rotational motion and an opening into which bushings are fitted to drive and support the drilling assembly.Note the pipe spinner (in red) on the side of the swivel.



Spinning Chain

 A relatively short length of chain attached to the tong pull chain on the manual tongs used to make up drill pipe. The spinning chain is attached to the pull chain so that a crew member can wrap the spinning chain several times around the tool joint box of a joint of drill pipe suspended in the rotary table. After crew the pin of another tool joint into the box end, one of them then grasps the end of the chain and with a rapid pward motion of the wrist "throws the spinning chain"—that is, causes it to unwrap from the box and coil upward onto the body of the joint stabbed into the box. The driller then actuates the makeup cathead to pull the chain off of the pipe body, which causes the pipe to spin and thus the pin threads to spin into the box.

Top Drives

We supply a full line of AC electric top drives from 250 to 1,000 tons. We know that short lead time is important for the drilling contractors. Most of our top drives can be delivered to the customers in a timely manner so that their drilling needs are met in time.

Drilling efficiency and safety are our primary objectives. The use of a top drive system provides the operator substantial benefits over traditional Kelly drilling.

• Drilling with 90 ft triple stands means fewer drill pipe connections, decreasing drilling time by up to 30%
• Greater control of directional drilling tools provides quicker tool orientation
• Reaming with triple drill pipe lengths leads to faster overall reaming
• Ability to circulate mud and rotate while tripping reduces the risks of stuck drill pipe
• Accurate tool joint make-up extends the life of the drill pipe
• Ability to stab and close IBOP at any time
• Fewer connections and no Kelly bushing at the floor means safer, more efficient drill floors