Drilling Rig Size Selection in HDD Projects
During the design phase of Horizontal Directional Drilling (HDD), selecting the appropriate drill rig size is crucial due to its impact on site selection and workspace requirements. The choice depends on factors like the bore path design and product pipe characteristics, particularly the estimated pull loads. An often-used guideline is to select a drill rig with a pulling capacity at least twice the dry weight of the product pipe. Engineering judgment and HDD experience are key to making this determination.