Construct vertical wells while casing in one run
The Allegro XCD casing-while-drilling alloy bit is designed for drilling vertical or tangential wells to TD in one run. This PDC bit drills on standard casing that is rotated at the surface.
Eliminate dedicated drillout runs
The bit's sub is composed of durable oilfield-grade steel, and its body is a copper bronze alloy. This unique composition enables it to be drilled out by any standard PDC bit after the Allegro XCD alloy bit has been drilled to TD and the casing has been cemented. After drillout, the drillout PDC bit can continue drilling the next interval, eliminating the need for a dedicated drillout run.
The cutting structure of the Allegro XCD alloy bit can be fitted with 13-, 16-, or 19-mm PDC cutters, which are available in standard or premium grades.
The Allegro XCD* casing-while-drilling drillable alloy bit allows drilling the borehole and casing of the well in a single trip for casing- and liner-while- drilling service applications. Total time to drill an interval is reduced by eliminating the time for running casing and mitigating downhole problems with borehole instability. The body alloy of the Allegro XCD drill bit can be easily drilled out with a standard PDC bit, eliminating a dedicated drill out run or use of a special drill out bit.
