CNC Machine Shop, Drilling Tools Welding & Fabrication
Drill String Design | Straightening | Welding & Fabrication | Refurbishing
Nugent Special Thread Corp. (NST®), Holly Pipe's CNC machine shop, is capable of threading its own NST connection as well as all rotary shouldered threads including drill pipe connections, pipe casing connections, dual flow subs, customer designed threads or older obsolete threads. All of NST’s drilling tools are inspected with the same level of quality assurance to minimize wear and maximize performance of the drill string. Our extensive machine inventory allows us to handle material from 3/8” to 35” OD. Click here to view our machine shop’s lathe and mill equipment along with the capacities of each machine.
To accommodate the demand for quick turnaround in the manufacturing industry Holly Pipe employs the use of both manual and CNC lathes and mills. Manual lathes and mills are used for one and two part jobs, and for high volume production CNC lathes and mills perform the work. NST is equipped with the latest in state-of-the art machining equipment to comply with API Q-1 standards (license number: 7-1-0850).
Drill String Design
NST can mass produce a variety of common drilling tools, but if you have an idea for a custom tool we can assist you with drill string design and manufacturing. Let us know how the tool will be used to assure maximum effectiveness.
Water well drill pipe is typically manufactured by shortening 31’ to 20’ pipe and milling wrench flats on the box end. Our 3 ½”15.50# print shows the in-house pin connection for water well drillers.
Drill Pipe Straightening
Bent drilling tubulars are common in the drilling industry, and Holly Pipe is equipped to handle straightening of any drill pipe, heavy weight drill pipe or drill collar. Straightening comes first before cleaning or any other inspection. Individual tubulars are placed in a hydraulic press to carefully and accurately correct the tubing while maintaining integrity.
Drilling Tools Welding & Fabrication
Holly Pipe also combines general welding and fabrication at our facilities to handle any drilling tool repair. Understanding the metallurgy and chemistry of certain materials in accordance with strength requirements enables us to execute proven welding techniques. The drilling tools we produce are carefully heat treated to increase fatigue limitations.
Drill Pipe Refurbishing
Refurbishing drill pipe and subs is a specialty of Holly Pipe, and we welcome the opportunity to help drillers drive ahead with premium reconditioned tools. We can buildup and hardband drill pipe, refurbish HDD drill pipe, or modify most tubulars by boring out the ends.
For more information please contact us.