A gear reducer mechanism transmits rotational motion to an auger while enabling longitudinal reciprocating movement for drilling.
Creating segmented polycrystalline diamond bodies with distinct core and annular regions improves abrasion resistance while maintaining fracture toughness.
A hybrid rolling cone drill bit combines milled teeth with tungsten carbide inserts to cut varied earth formations.
Segmented electrodes in a pulsed electric drilling system create noncircular boreholes, reducing material removal volume and lowering drilling costs.
Spiral projections on the guide device convert rotation into linear motion, preventing sludge accumulation that hinders wing retraction.
Spring-loaded milling blocks expand radially to mill packers below casing patches, preventing casing damage and avoiding accidental side tracking.
A slimline stop collar integrates a compressible seal and slip ring to secure downhole tubulars.
A drill bit nozzle bore includes a formation evacuation channel extending partially around the circumference to prevent cuttings accumulation and shale packing.
Segmenting the drill bit into a reusable shank and replaceable head reduces manufacturing costs while maintaining structural strength.
Projectable arms with scraping bits extend across the casing axis to remove scale while retracting to pass through restricted inner diameters.