Polycrystalline NQ HQ PQ ROD Rate Surface Set Diamond Core Bit For
PDC Drill Bit For Sandstone Drilling
1.New Superhard Material;
2.High Drilling Rate;
4.Used For Coal Mine
1.Cutting toos adopts superhard material, long service life drill
2.Can be greatly improved the in hard and medium-hard drilling
3.Wearable blade, without grinding, convenient to use;
4.Reduce the labor intensity,it is suitable for lithologic strata
at level 4-12
This type of bit uses seismic grade tungsten-carbide as the cutting
media. Tungsten-carbide does not possess the hardness of diamond
and as such has a limited range of application as a core drilling
cutting media. Tungsten-carbide bits are however a very cost
effective means of drilling softer unconsolidated formations.
PCD(TSP) core bits are similar to surface-set diamond bits in that
they are set with a single layer of cutters mounted on the face of
the bit in a pre-determined pattern. Instead of natural drill
diamond however, the cutting media used on geotechnical bits are
synthetic polycrystalline diamond elements. These elements are composed of micron-sized particles of synthetic
diamond that have been formed into various geometric shapes.
Like surface-set diamond bits, geotechnical bit crowns consist of a
tough wear resistant matrix body that as a minimum includes natural
diamond gauge protection setting. In most cases, the gauge
protection setting is augmented with seismic grade tungsten-carbide
pads and/or polycrystalline diamond elements.
Shear is the mechanism by which geotechnical bits cut the formation
being drilled. In softer formations, these bits are capable of very
high rates of penetration when compared to surface-set diamond bits
due largely to their high degree of cutter exposure.
TSP Core Bits are ideal for geotechnical drilling applications.
They are suited for soft to medium hard formations, such as clay,
shale, sandstone, limestone, marble, basalt, etc
1. High Penetration Rate
2. High Rotation Speed
3. High Performance
4. Long life drilling
5. High strong resistance to abrasion