The physical size of the equipment and the scope of horizontal directional drilling projects may vary significantly.
The physical size of the equipment and the scope of horizontal directional drilling (HDD) projects may vary significantly. Small HDD projects and operations differ substantially from larger operations, while the general practices are similar.
The capab ility of a rig to perform a given installation is a function of the ground conditions, experience of the crew and the resources (i.e. support equipment, supplies, downhole tooling) available. Subsurface conditions strongly influence the selection of downhole tools, drilling fluid additives, drilling techniques and schedule.