133mm 3 Blade PDC Drill Bit for Sandstone Drilling

133MM 3 blade PDC drill bit for sandstone drilling


PDC drill bit 133mm, 3 blades, thread API 2 7/8 " REG PIN, the construction of the oil type.
These bits are very well established in the drilling of water wells, both clay and sand, and on limestone. The main advantages of this type bits: high drilling speed, high resource bits: 3-4 times larger than the roller bits, no moving parts, preventing the formation of seals at the drilling tool.
The side surface of the bit carbide or PDC cutter reinforced inserts to prevent loss of diameter.


Highly efficient diamond bladed drill bit (PDC) is intended for drilling in solid monolithic rocks with factor of a fortress f = 16 on a scale of prof. Protodyakonov with tensile strengths of uniaxial compression ranging from 84 to 196 and abrasive maximum value of 45 mg.
Chisel successfully used small-sized drilling rigs for drilling: soft, dense, low abrasive rocks, quartz sandstone, limestone, dolomite, as well as the very hard rocks and granites. The bit body has a surface hardening. Material cutters - polycrystalline diamond cutters make it possible to increase the wear resistance and increase the drilling rate of speed, in comparison with a chisel equipped carbide. The ends of the bit segments are built for durability. Chisel has no moving parts that can effectively destroy the rock at a minimum axial load and high speed, has a wide range of performance, more versatile in application.
The quality of cleaning the sludge increases due to the spiral gauge surface, it also significantly reduces the torque and allows the bit to avoid turbulence. The presence in the structure stabilizing elements reduces vibration and eliminates the danger of fracture cutters, provides a more uniform borehole.
The negative rake angle of the cutting is useful to break the rock and helps not only to extend the life of the bit and increase the drilling rate.
In order to prevent bit balling is optimum angle bypass which provides easy access and removal of sludge particles on the surface.
The quality of cleaning the sludge increases due to the spiral gauge surface, it also significantly reduces the torque and allows the bit to avoid turbulence.
The presence in the structure stabilizing elements reduces vibration and eliminates the danger of fracture cutters, provides a more uniform borehole.
Modern diamond PDC bits have a higher speed, durability and efficiency of drilling wells, compared with carbide bladed and roller cone bits, thereby increasing the performance of works by reducing the time and costs, and most importantly increase your profits!