BQ NQ HQ PQ набор поверхностей алмазные сердечники для геологических исследований

PQ NQ HQ Drill Diamond Bits For Geological Exploration Drilling

Surface set coring bits are typically used for higher penetration rates than impregnated bits in softer formations. They utilize a single layer of natural diamonds set in a hard matrix.

The choice of a Surface Set Bit will be dictated by the rock type. The diamond size, crown design and matrix hardness used will be determined by the hardness of the formation. The friability of the core will determine the type of fluid passages. The surface set bit provides a greater esure of diamonds than the impregnated bit and therefore faster penetration in soft formations.