European Flavor, American Made!
At DPI, we are able to manufacture our Percussive Casing with a short lead time! Our quality and value is unsurpassed – wear life is exceptional, delivering the lowest cost-per-foot drilled, hands down. We start with 4140 alloy steel and Q&T Tool Joints, and the highest-quality American Manufactured Mid-Body Tubing.
We inertia weld 88.9mm-152.4mm Casing, and Submerge Arc Weld 168.2mm-219mm Casing. Our Tool Joints are precision-cut with CNC Lathes. We manufacture our threads in Right-Hand, Left-Hand, Single Lead, Double Lead, and Triple Lead Configurations. Conical or Cylindrical thread profiles available.
At DPI, we feel that one of our strengths is knowledge. We understand that a casing that arrives and does not mate with pre-owned Casing can lead to a week’s worth of time. We work with our customers to match their string prior to manufacture; we do not ask them to match to ours. We go the extra mile!
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| 152.4mm Casing | 133mm Casing |
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| 168.3mm Casing |
Rotary Percussive Casing Cylindrical or Conical Threads
Conical Threads: similar in appearance to the Cylindrical, the Conical Threads are of a slightly angled profile, giving the thread the slight conical shape – and offer the benefit of requiring fewer turns to open the tool joint.
Cylindrical Threads: the most common thread profile used for reusable rotary percussive casing, and upon make up, mating pieces butt at the shoulder at 90 degrees.
Single Lead Threads: used for 88.9 mm OD, and Smaller Double and Triple Lead Threads are common to the diameters larger than 88.9 mm OD.