Features / Benefits
(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
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.
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.
(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.
(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
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
The Relief Gauge is designed for all Puss 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
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
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
Can be used to enhance the removal of cuttings through the center of the bit increasing the rate of penetration.
(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
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.
(O) Oval Cutters
Oval cutter solutions have gone beyond the traditional homogeneous lateral wellbore to the heterogeneous formations of slant and S-shaped wellbores to curve and lateral sections. Specially designed oval cutters provide increased durability and faster penetration rates while reducing reactive torque for better directional control.
(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
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
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
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
Shock studs limit vibrations and increase bit stability.
For specifications, application solutions, and Feature availability please contact your local Varel Oil & Gas representative.