cone bit for water well

cone bit for water well

cone bit for oilfield well drilling

The structure features:

a. Increasing the impact resistance of compacts and decreasing the breakage rate by using the tungsten carbide compact of high strength and toughness.For soft formation drilling, offset crested scoop compacts are used.

b. Improving the seizure resistance and capacity of the bearing by applying carbide layer on head bearing surface and silverplating in the ID of cone.

c. Increasing the reliability of bearing seal by using high-saturated buna-N rubber O ring seal with larger cross section, and a seal boss is added to the outer end of the sealing area.

d. Being able to stand high RPM by using ball locked cone.

e. Taking good advantage of the cutting ability and cutting speed by optimizing the design of compact numbers and rows, the exposure height and the special shaped compacts.

f. Providing the bearing system with good lubrication, extending the bit life and ensuring the normal work of the O-ring seal by using all rubber compensator to limit the pressure differential and prevent drilling fluid from entering into bearing lubrication system.

g. Increasing the high temperature resistance of the seal & lube system by using new type of grease, which can stand high temperature up to 250 centigrade and with low abrasive wear.