Cangzhou Great Drill Bits Co., Ltd. products

Advanced tungsten carbide matrix 20% improvement in erosion resistance over precious matrix. Only four blades for the JFA (junk flowed area). Increase cuttings evacuations with available hydraulic flows.

Advanced tungsten carbide material matrix body 20% improvement in erosion resistant than precious matrix bit. Less cutting structure less and bit body damage. Provide multiple advantages in interbeded lithology.

Improving cutting efficiency and increasing ROP and durability with advanced technology that helps cutters stay sharper longer. Seven blades and dual cutter rows extend the bit life and penetrate efficiency. Enhanced bit stability for BHA shock and vibration mitigation.

After implementing in several holes,our engineer evaluated the usage effect ,the improvement project was proposed:

After implementing in several holes,our engineer evaluated the usage effect ,the improvement project was proposed:

A new pattern to prevent & solve the down hole complication situation. Supply a safety & efficiency drilling environment.  Reduce a large mount of NPT(non production time). Absolute guarantee for smooth tripping and clean borehole. Fast drilling in the soft formation,limited by the length of the bit gauge,the bore hole trajectory is irregular,this situation caused bit bouncing, high torque and drag . The Crocodile Reamer can trim the irregular well side by scraping the tight,key- seating.etc sections to make the side smooth. The “full coverage”cutters roundly cutting the  needless rocks. Special shaped cutters on the reamer supply series  supporting point on the contact between the BHA and  hole wall,it can reduce the radial vibration.

PDC hole opener is a reliable solution for hole enlarging in both soft and medium. The body is machined of a single block of AISI 4145H alloy steel. The unique design of the body ensures maximum strength and durability. It can withstand loads far beyond those involved during normal drilling operations.

This line of impregnated nature diamond core bit is for very hard and abrasiveness formations,which has double cone crown profile and heavy diamond density.

Double cone  parabolic profile and medium cutter density,designed for coring the medium hard formation.Utilizing different patented PDC cutters enhance the bit’s ability to drill in hard formations. High quality TSP in the inner blade and PDC in the gauge has high wear-resistant for longer bit life. High strength body and cutters made the coring drill safety and more efficiency.

Which has a shallow parabolic profile and medium cutter density,designed for coring the medium hard formation.Utilizing different patented PDC cutters enhance the bit’s ability to drill in hard formations.
High quality TSP in the inner blade and gauge has high wear-resistant for longer bit life. The unique nozzle design improved the cleaning and cooling,enhanced the ability cuttings evacuation.