- Turbodrill
A turbodrill is a tool used mostly by
petrochemical companies to dig wells forcrude oil andnatural gas reserves.History of turbodrilling
*In
1924 the first USPatent was issued to a company calledScharpenberg for the first multi-staged turbodrill.*In
1982 the first steerable turbodrill was developed by a company called Neyrfor. This was steerable because it had a stabilizer that was offset from the rest, pulling the tool to one particular side. Using the law ofinertia , one could alter the direction of the hole being drilled by changing the direction of the offset.*In
1992 the first steerable turbodrill using a bent housing was created by "Neyrfor". The advantage to using the bent housing method of steering instead of an offset stabilizer, is that it provided a straighter hole with less of acorkscrew effect, which in turn made drilling more efficient, faster, and more accurate.How a turbodrill works
Turbodrills use the
mechanical energy of the drill itself, and thehydraulic energy provided by the oil rig’s drilling fluid pumps to deliver power to thedrill bit . The drill bit on a turbodrill spins much faster than on a conventional motor drill. The result is that, though there is less torque, this is compensated for by the increased speed, which makes straighter holes, and can drill faster and easier through tougher ground materials. The process is very similar to a dental drill used by a dentist. These tools are able to dig faster, operate in a much higher temperature environment, deliver longer downhole life, and produce a better and straighter hole quality than a conventional drilling motor. In many applications turbodrills can offer their customers significant cost savings over standard drilling systems by saving them time spent drilling the hole since they typically pay drillers by the hour.
Wikimedia Foundation. 2010.