The Hydro-Mechanical Anderreamer™ tool produces high-quality enlarged concentric wellbores regardless of the formation type or downhole conditions. The tool activates by hydraulic force, mechanical force, or both, providing a more flexible BHA in applications where a dual actuation mechanism is required. The cutting structure is tailored to the specific application, performance expectations and bit type. Mathematical, predictive modeling ensures the cutting structures on the bit and Anderreamer™ tool are compatible.
Features/Benefits
Integral Pilot Hole Stabilization (360° coverage) - Provides superior performance downhole
Cutter Block Expansion and Retraction Mechanism – Offers unparalleled expansion, retention, and a high mechanical advantage for full gauge, concentric boreholes
Improved Cutter Block Design – Provides enhanced load distribution for excellent PDC durability
Shoe Drilling Mechanism - Safely drills the shoe
FEA modeling – Provides optimum tool strength
User-friendly - Compatible with all RSS types and drilling systems
Jet Nozzles - Provide option of additional cleaning if required
User-friendly - Compatible with all RSS systems
Versatile – Operates in all types of applications, including deep water and extended reach; works in a range of drilling environments, from interbedded formations to highly abrasive formations
Link:
http://www.nov.com/Segments/Wellbore_Technologies/Downhole/Borehole_Enlargement/Underreamers/Hydro_Mechanical_Anderreamers/Hydro-mechanical_Anderreamer.aspx
Features/Benefits
Integral Pilot Hole Stabilization (360° coverage) - Provides superior performance downhole
Cutter Block Expansion and Retraction Mechanism – Offers unparalleled expansion, retention, and a high mechanical advantage for full gauge, concentric boreholes
Improved Cutter Block Design – Provides enhanced load distribution for excellent PDC durability
Shoe Drilling Mechanism - Safely drills the shoe
FEA modeling – Provides optimum tool strength
User-friendly - Compatible with all RSS types and drilling systems
Jet Nozzles - Provide option of additional cleaning if required
User-friendly - Compatible with all RSS systems
Versatile – Operates in all types of applications, including deep water and extended reach; works in a range of drilling environments, from interbedded formations to highly abrasive formations
Link:
http://www.nov.com/Segments/Wellbore_Technologies/Downhole/Borehole_Enlargement/Underreamers/Hydro_Mechanical_Anderreamers/Hydro-mechanical_Anderreamer.aspx
