Sperry Drilling services' innovative SlickBore® matched drilling service has proven that a smooth hole can influence every parameter of the well construction process -- from downhole vibration and torque and drag to hole cleaning, trip time, logging tool response and ease of running both logging tools and casing. The SlickBore system combines a FullDrift® extended-gauge PDC or roller cone bit with Sperry's specially designed PDM positive displacement motor and MaxBHA™ bottomhole assembly modeling software, providing a customized drilling system designed to improve ROP, directional control and hole quality.
The SlickBore service utilizes an extended-gauge bit design based on a nonaggressive cutting structure typified by small, densely positioned cutters with high back-rake angles to improve steerability. The FullDrift bit's design acts as a stabilizer to increase bit stability and provide a smoother wellbore by eliminating spiraling and ledging. The system can also be configured with a NBR® near-bit reamer for concentric hole opening, an AGS™ adjustable gauge stabilizer for full 2-D control in rotary mode or an ABI™ at-bit inclination sensor for more precise landing capability.