Abstract: A method can include receiving input for a drilling operation that utilizes a bottom hole assembly and drilling fluid; generating a set of offset drilling operations using historical feature data, where the historical feature data are processed by computing feature distances; performing an assessment of the offset drilling operations as characterized by at least feature distance-based similarity between the drilling operation and the offset drilling operations; and outputting at least one recommendation for selection of one or more of a component of the bottom hole assembly and the drilling fluid based on the assessment.

Abstract: A virtual transmission line includes a charge location and a discharge location. One or more mobile batteries are charged at the charge location. The mobile batteries are transported to the discharge location. At the discharge location, the mobile batteries are connected to electric equipment. The mobile batteries are then transported back to the charge location and the cycle repeated.