Neyrfor Turbodrilling Systems

Overview Library

High-power turbodrilling efficiency for hard, abrasive formations

Delivering more mechanical drilling power downhole than any other drive system, Neyrfor turbodrilling systems are ideal for drilling in harsh HPHT conditions and in the hardest, most abrasive formations. The systems are designed with a fully concentric drive-train rotation to maintain optimal power while on bottom and to absorb excessive loads for extended periods of time.

The drive system efficiently converts hydraulic energy from the mud column into mechanical energy at the bit to deliver more downhole mechanical drilling power. By rotating the drive shaft at a higher speed while remaining dynamically stable, Neyrfor turbodrilling systems produce unsurpassed ROP without the negative effects of excess torque.

Consistently smooth wellbores in demanding environments

As a result of the high bit rotary speed, Neyrfor systems produce a consistently smooth wellbore. For straight-hole applications, these turbodrilling systems act as natural dropping pendulum assemblies in rotary mode, which produces higher quality wellbores in less time than conventional BHAs. In directional drilling applications, the system's consistent predictable toolface control, along with the use of stabilization, ensures that hole spiraling and microdoglegs are minimized. Toolface control also ensures that directional objectives can be achieved in even the most demanding environments.

Neyrfor TTT Thru-Tubing Turbodrill

A slimhole design that incorporates all operational characteristics in a 12-ft tool produces a power range for various downhole conditions, including high temperatures and harsh fluids.

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An integrated drilling system, including a Neyrfor Delta directional turbodrill, provided an operator in Oklahoma with an openhole sidetrack and 75° curve, and the capability to drill the planned section in one trip. Read case study