Roller Reamers, Borrox AP® / Model 60 Open Bearing // Cutter Type KSX Outer Diameter 12 1/4" Type Sealed Borrox AP Hole Size 6 1/8"

The Borrox AP* advanced performance sealed-bearing reamer has the flexibility and durability to meet rigorous downhole demands.

Hole gauge maintenance and torque reduction characteristics can be customized with the Borrox AP reamer.

To help operators take on different formation applications, the Borrox AP reamer works with three different cutter assemblies:

KSX* high-strength TCI reamer cutters for soft to medium-hard formations;

RSX* milled-profile torque- reduction reamer rollers for torque reduction applications, and

DEX* diamond-enhanced insert reamer cutters for high abrasion and impact resistance, a hard formation profile.

Cutter assemblies can be changed easily on the rig floor to accommodate a range of wellbore conditions.

Application:

• low packed hole assemblies

• medium to severely packed hole assemblies

• extremely abrasive drilling conditions

Benefits:

• available in all common hole sizes

• reduce downhole torque caused by wellbore spiraling and doglegs

• maintains borehole quality

• maintains hole gauge in extreme conditions

Features:

• blank ended manufacturing means the tool can be configured for near bit and string placement in the BHA

• high-flow body increases annular total flow area (TFA) to improve hole cleaning

• longer full-gauge cutting section enhances gauge maintenance

• proprietary seal endures high loads, temperatures, and rotary speeds to extend bearing life

• three cutter assemblies allow customization for different applications

• cutter assemblies changed safely and easily on rig floor

• optional real-time data connection for use with Schlumberger LWD tools

The Model 60 Rotary Reamer utilizes a simple non-sealed bearing design making it cost-effective to run in many applications.

It is available in a broad range of hole sizes from 5.7/8 inches to 34 inches and offers a choice of two cutter designs.

The Model 62 offers a large bore feature available only on tools from 6 1/2 inch to 8 3/4 inch hole size.

Both models come in three- and six-Point reamers for bottom hole and string placement.

Cutters are retained using a simple but effective design that ensures the cutter assembly can stand up to the harshest drilling conditions.

Features and Benefits:

• Large diameter, carburized and hardened pins serve as robust Abrasion-resistant bearing sections.

• True rolling reamer cutters offer two cutting structure options

• The “Type Q” cutter achieves maximum reaming action in medium to hard formations where crushing action against the formation is preferred.

• The “Type K” Knobby cutters use Tungsten carbide inserts to fracture the rock, and are recommended for use in hard formations. Applications:

• The Model 60 Rotary Reamer offers multiple cutting structure options to suit variable formation conditions

• Renowned for its reliability, rig site serviceability, and a reputation for maintaining hole gauge in extreme high temperature hole conditions.