XCD Casing-While-Drilling Alloy Casing Bit | Schlumberger

XCD

Casing-while-drilling alloy casing bit

Construct vertical wells while casing in one run

The XCD casing-while-drilling alloy casing bit is specially 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 allows it to be drilled out by any standard PDC bit after the XCD casing bit has 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 XCD casing bit can be fitted with 13-, 16-, or 19-mm PDC cutters, which are available in standard or premium grades.

TDDirect casing-drilling and liner-drilling technology
The bit’s sub is composed of durable oilfield-grade steel, and its body is made of a copper bronze alloy. This unique alloy allows it to be drilled out by any standard PDC bit after the XCD bit has drilled to TD and the casing has been cemented in place.
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