Design-Types

Simple Arrangement HDD designs facilitate the effective installation of pipelines along a straightforward alignment and profile suitable for variety of rig sizes and specifications. The method is ideal for crossings beneath roads, railways, water bodies, or environmentally sensitive areas, from surface to surface. The designs evaluate drilling rig capacity and specifications, BHA tool and drill pipe selection, minimum and maximum depth of cover, drilling fluid properties, and borehole stability, while also assessing maximum installation forces to ensure product pipe material limits are not exceeded.

The designs plan optimal/viable entry and exit angles, BHA and pipe radii, settlement and hydrofracture risk mitigation, bore annulus flow direction, surface or conductor casing requirements, equipment placement, and pipe pullback geometry, based on geotechnical conditions, surface topography, and existing services. The use of this design type is effective for short to long-length crossings for various pipe diameters, from single installations to bundled configurations. Read less