The GunDRILL Eccentric Reamer is a versatile drilling reamer. This unique PDC-based reamer delivers accurately gauged and high-quality wellbores enlargement. This hole enlargement is achieved through a simple spiral blade design that uses PDC cutters and proprietary Tungsten Carbide Inserts (TCI). While running in hole, the pass-through diameter of the GDR ER will be the casing ID. TCI distribution, which is added to the tool, will prevent the PDCs from damaging the casing. Also, the PDC cutters distribution works with our in-house cutter design software. These active cutters allow our GDR ER to interact with formation and enlarge boreholes only after exiting the casing.

The GunDRILL Eccentric Reamer is highly flexible being uni-directional for applications where only back reaming is required and bi-directional for applications where front and back reaming is required. There is also the directional variant with flat TCIs for application where sliding is expected. The tool can be made in steel and non-magnetic configurations to extend the flexibility of tool placement anywhere along the BHA.

MAKING IT BETTER

By utilizing the Rubicon GunDRILL Eccentric Reamer, the borehole is opened and reamed to perfection, the BHA can be pulled to surface safely overcoming high torque, multiple sticking points and difficult intervals. This can also lead to an increase in ROP and in casing running speed due to smoother wellbore wall condition. Often wiper trips are eliminated after the use of our GDR ER which leads to cost savings for our customers.

Benefits

• Hole enlargement with increased downhole reliability due to the absence of moving parts
• Customized hole enlargement starting at very small values such as 1/8” to suit various applications
• Smooth POOH & prevention of costly stuck pipe situations due to borehole problems
• Reduces NPT
• Better hole cleaning
• Eliminate dedicated wiper trips
• Mitigate the tripping issues associated with key seats and micro doglegs
• Smooth deployment of casing during well construction operations and reduces casing running times
• Security against sticking downhole, provided string can be rotated