Tricone bit,and used tricone bits for sale

Specifications

1.Good quality &after-sale service 

2.Extensive industrail experience

3.ISO certified

4.Size: 7 7/8" to 12 1/4"

Structural features

Working condition of the bit in directional and horizontal drilling applications is quite different than in vertical well drilling.

The MD series motor bit features high RPM,better gage protection and stablity,higher reliability,excellent hydraulic effect and longer working life,etc.

MD bits is suitable for drilling at 90~300 RPM and is the ideal choice for directional,horizontal and horizontal multilateral well drilling applications.

The size range of MD series bit is from 7 7/8 to 12 1/4 inch,and IADC varies from 117 to 647.

For example:8 1/2 MD 517X.

1.HIGH SPEED FLOATING BEARING AND METAL FACE SEAL.

MD Bit is designed with floating bearing and metal face seal structure suitable for high RPM.At the same time,it utilizes new type of synthetic lubricating grease to improve working condition of the bit's bearing,so that the bit can achieve longer service life and higher reliability when used on screw drilling tools.

2.HIGH ROP AND LONGER WORKING LIFE.

High efficient cutter shape and optimized cutting structure.

The bit's ROP is greatly improved by using Kingdream's patented convex crested cutter shape and other highly efficient cutters.     

Special cone shell proctection

MD Bit is designed and manufacturerd with special  cone shell proctection technology so that the cone shell is protectd from being excessively worn by drilling cuttings and unbroken rock ridges and consequently,working life of the bit is effectively prolonged when the bit is used for directional and horizontal drilling applications.

3.TO IMPROVE THE BIT'S STABILITY,PREVENT BIT DIAMETER SHRINKAGE,AND EXTEND THE BIT'S WORKING LIFE.

Spiral double-stable head O.D.

The double-stable structure can improve the bit's working stability,effectively mitigate vibration of the bit at the bottom hole and improve outer flow field.This structure can faciliate the removal of drilling cuttings at the bottom hole and all of the borehole and therefore improve drilling efficiency.

Enhanced gage protection.

To meet specific requirement of directional and horizontal drilling applications,MD bit is designed with high density cutter placement that covers the whole head O.D. area and the cutter exposure changes in a ladder pattern so as to effecitively protect the shirttail and greatly imporve the bit's ability against diameter shrinkage.

4.OPTIONAL FEATURES:C,D,H,K,X,Y