Tungsten Carbide Drill Bit

A tungsten carbide drill bit is a device part made of carbide, attached to the end of the drill string that breaks apart, cuts or crushes the rock formations when drilling a wellbore, such as those drilled to extract water, gas, or oil.

The carbide drill bit is hollow and has jets to allow for the expulsion of the drilling fluid, or "mud", at high velocity and high pressure to help clean the bit and, for softer formations, help to break apart the rock. A tricone carbide bit as a improved design that comprises three conical rollers with teeth made of tungsten carbide. The teeth break rock by crushing as the rollers move around the bottom of the borehole. A polycrystalline diamond compact (PDC) bit has no moving parts and works by scraping the rock surface with disk-shaped teeth made of a slug of synthetic diamond attached to a tungsten carbide cylinder.PDC bits, which first came into widespread use, are used for gas and oil exploration in the North Sea. They are effective at drilling shale formations, especially when used in combination with oil-base drilling muds.


 Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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