Oil drilling and geological drilling in the most used cone bit.

       Oil drilling and geological drilling in the most used cone bit. The cone bit has the effect of rocking, crushing and shearing the formation rock in rotation, so the cone bit can accommodate soft, medium and hard layers. The number of roller bits can be divided into single cone, double cone, three cone and multi-cone bit. At present, the most widely used at home and abroad, the most common is the three cone bit.
There are three nozzles on the inside of the cone of the three cone bits. The holes in the three nozzles are the parts of the drilling fluid. The drilling fluid passes through the bore of the nozzle, the circulating drilling fluid, the cooling bit, the drilling tool, , And play a large hole in the bottom of the rock gap, the role of auxiliary rock breaking, often said that the high pressure jet drilling, refers to the use of small nozzle water, high pump pressure, nozzle in the bottom of the ultra-high pressure water jet, Rock, to improve the drilling speed. So the oil drill nozzle in the drilling plays a very big role, in order to improve the wear resistance of the nozzle, the nozzle is generally made of cemented carbide, made by powder metallurgy, shape for a cylindrical.