The proprietary Neyrfor Turbodrill is designed to provide faster rates of penetration, operate in higher temperature applications, deliver longer downhole life, and produce better wellbore quality than conventional positive displacement drilling motors. Neyrfor Turbodrills offer the customer significant cost savings over conventional drilling systems in most applications.
The concentric rotation of the turbodrill allows the passage of drilling fluid though the tool to rotate the drive shaft at significantly higher RPMs while still remaining dynamically stable about its geometric axis. This absence of lateral vibration (off-center motion) means that the greater portion of the energy generated by the turbodrill is applied directly to the formation – there is virtually no loss of power into vibrational energy. The result is higher efficiency, resulting in more delivered mechanical power and thus, faster ROP.
Maintaining optimum power while remaining on-bottom for extended periods of time is the hallmark of Smith Neyrfor turbodrills. The specified high performance materials in the turbodrills provide sustained high performance in even the most demanding applications.
Turbodrills achieve near equal drilling performance (ROP) in both rotation and orient/slide modes due to maintaining the same turbine RPMs and power delivered to the bit when sliding. Flow rate remains constant so output remains the same. The excellent wellbore quality produced by the turbodrill means less friction and superior control of weight applied at the drill bit – resulting in less stalling events and more efficient slides.
Smith Neyrfor turbodrills offer outstanding toolface control, being equally at home in complex directional wells or vertical drilling applications. The turbodrill operates with less fluctuating and reactive torque than PDMs making it much easier to control and predict toolface and resultant directional response, making it the preferred choice for sidetracking.
