A tricone rock drill bit is a versatile type of rotating cutter bit used for drilling oil and gas wells, mining boreholes, and other applications involving rock fragmentation. It features a steel bit body with three independently-indexing conical cutters mounted via journal bearings along extended arms.
The hardened cutting surfaces of each cutter, which are often tipped with inserts made from tungsten carbide or polycrystalline diamond compact, continuously indent and fracture the rock formation through both impact and abrasion as the cutters orbit and gouge into the rock face. Jet nozzles on the bit body direct high-velocity drilling fluid to both lubricate and wash away cuttings between the cutters and up the borehole.
The flexible formation Tricone Rock Drill Bit are used to drill low compressive strength, very soft formations. This bit made the best use of high-projection, large-diameter tungsten carbide conical and chisel inserts. High bit penetration rates are the result of this cutting structure design in conjunction with the maximum cone offset. Bit bailing in sticky formations is prevented by the deep intersection of cutter rows.
The inner and heel rows of the medium formation Tricone Rock Drill Bit have tough chisel tungsten carbide inserts. With this design, medium to medium-hard materials can be drilled quickly and with increased cutting structure durability. The HSN rubber O-ring offers sufficient sealing for long-lasting bearings.
The solid structure To drill abrasive and hard formations, use Tricone Rock Drill Bit. To prevent bit gauge loss, wear-resistant tungsten carbide inserts are used in the outer rows. To ensure cutter durability and long life, the greatest possible number of hemispherical inserts are used in every row.
