Abstract: A low headroom confined space drilling system is disclosed, comprising a low headroom drilling apparatus, a drilling fluid supply system, a drilling fluid collection system, and a drilling fluid recycling apparatus for supplying a recycled drilling fluid to the drilling apparatus. A method of installing a geoexchange borehole in an interior space of a building is also disclosed, comprising installing a borehole access chamber in a floor slab of a building, positioning a low headroom floor mounted rotary drilling apparatus over the borehole access chamber, providing a pressurized drilling fluid to the drill rod string and powering a rotary downhole drilling device attached to the drill rod string to advance the borehole to a desired depth, recovering a drilling fluid and drill cuttings from the borehole, removing drill cuttings from the recovered drilling fluid using the drilling fluid recycling apparatus and returning a recycled drilling fluid to the drilling apparatus.

Abstract: A protective pipe cover and support apparatus is disclosed that provides for secure attachment to an underlying surface, such as a concrete, tarmac or stone surface, for example, and which provides for secure retention and support of multiple pipes or other conduits within the pipe cover and protection of the pipes against loads, impacts and/or other forces applied to the pipe cover. The protective pipe cover includes a load bearing cover element with lateral load bearing supports which bear against an underlying surface, a curved outer web extending between the lateral supports, and a central load bearing support extending between the outer web and an underlying surface, and including an anchor for attachment to the surface. The pipe cover also includes a pipe support with multiple pipe retainer clips for resiliently retaining multiple pipes situated between the outer web of the load bearing cover element, and the underlying surface.