Features / Benefits (B) Box Connection (B) Box Connection A box connection is used with turbine sleeves to eliminate the need for crossover subs when connecting to a turbine, RSS tools, and other downhole tools. (C) CuttPro® Shearing Caps (C) CuttPro® Shearing Caps Patented shearing cap technology consists of fitted tungsten carbide cutting elements bonded to the outer profile of a bit’s PDC cutters preventing damage to the cutting structure during drill our procedures. (D) Drop in Cutter (D) Drop in Cutter Located in the face of the gauge pad, this additional gauge cutter is designed to maintain a fully gauged hole while drilling. (F) Force Shaped Cutters (F) Force Shaped Cutters Shaped Cutter Feature Sheet (G) All TSP Gauge (G) All TSP Gauge Thermally stable polycrystalline gauge is a premium gauge protection designed to ensure correct hole diameter in tough drilling applications. (G1) Step Gauge (G1) Step Gauge The Step Gauge is designed for use with conventional rotary steerable, PDM, and “Point the Bit” RSS drilling assemblies, providing flexibility for a range of directional drilling applications. (G2) Relief Gauge (G2) Relief Gauge The Relief Gauge is designed for all Push RSS systems. It is based on the concept of increasing lateral displacement to maintain gauge stabilization and can eliminate the need for full active gauge designs in many applications. (G3) Active Gauge (G3) Active Gauge The Active Gauge for “Push the Bit” systems is designed principally for high DLS/3D sidetracking drilling applications where a very high level of side-cutting action is the prime requirement. (H) Enhanced Nozzle Pattern (H) Enhanced Nozzle Pattern Typical nozzle pattern is one nozzle per blade. In an (H) pattern there is more than one nozzle per blade built into the bit for increased hydraulic efficiency. (J) Reverse Circulation (J) Reverse Circulation Can be used to enhance the removal of cuttings through the center of the bit increasing the rate of penetration. (L) Lateral Jets (L) Lateral Jets Highly angled jets near the center of a bit create cross-flow hydraulic energy optimizing cooling, cleaning, and chip removal helping sweep away cuttings off the bit face. (N) Reduced Nozzle Pattern (N) Reduced Nozzle Pattern Typical nozzle pattern is one nozzle per blade. In an (N) pattern there is less than one nozzle per blade built into the bit to increase hydraulic efficiency in less than optimum hydraulic situations. (P, P2, or PP) PowerCutters™ (P, P2, or PP) PowerCutters™ A high density cutting structure arrangement gives longer bit life through a variety of rock types without sacrificing ROP. The PowerCutters provide extra density on the critical shoulder area of a bit. P – Every row with PowerCutters P2 – Every other row with PowerCutters PP – Double rows of PowerCutters (R) Diamond Shock Studs (R) Diamond Shock Studs Used in abrasive formations when drilling conditions cause bit vibrations, shock studs return the bit to smooth drilling conditions increasing bit life and efficiency. (T) Turbine Sleeve (T) Turbine Sleeve Turbine sleeves can be customized to specific lengths and diameters . Sleeves are designed to match junk slots on the bit, increasing hydraulic efficiency. (U) Up Drill / Back Ream (U) Up Drill / Back Ream The up drill feature allows hole wall cleaning during back ream operations eliminating keyseating, reduces dog leg severity, and hole wall sloughing. (X) Tungsten Carbide Shock Studs (X) Tungsten Carbide Shock Studs Shock studs limit vibrations and increase bit stability. (Y) Curved Nozzles (Y) Curved Nozzles Varel’s new curved nozzle technology is designed specifically for use in clay-heavy formations where bit balling is common. These nozzles direct fluid flow based on their orientation, taking advantage of existing fluid energy without sacrificing TFA. They are fully interchangeable with standard nozzles. For specifications, application solutions, and Feature availability please contact your local Varel Oil & Gas representative.