Bottom Hole Assembly. Selection of drillng string components and downhole tooling
During the presentation will be discussed the factors determining the configuration of the drilling string and the main criteria for the selection of drilling tools. Components will be characterized which determine the technical superiority of the individual elements of the drilling string. The entire presentation will refer to the main components of the bottom hole assembly, at each stage of HDD drilling.

Roberto Maestrello, Colli Equipment
Graduate of the University of Bologna, since 2001 he has been working in the industry dealing with the construction of pipelines. From 2007 until now he holds the position of Technical Manager at Colli Equippment SpA (Italy). His interests include: research into new drilling technologies, depth tools, feasibility planning, and strategic business plans.