DRILLING OPERATION APPARATUS, METHODS, AND SYSTEMS

摘要

In some embodiments, an apparatus and a system, as well as a method and article, may operate to generate a surface representing mechanical specific energy as a function of dimensionless products of downhole drilling process variables. Additional actions may include characterizing an area of the surface for different drill bit types, and operating a controlled device according to a location of run data associated with at least one of the different drill bit types and the area on the surface. Additional apparatus, systems, and methods are disclosed.