1. Hybrid bits also include cone and blade. The cone diamond tooth will produce unsustainable pitting pits and cause pre -crushing of the rock layer.
2. In the geological structure without symmetry, hard, soft, and overlapping, the tricone bit on the hybrid causes the rock layer to be broken, reducing the drilling load of the PDC cone diamond and cone roller.
The hybrid bit is composed of cone and PDC blade, which fully combines the advantages of two types of drill bits.
1. PDC cutting tooth part can provide faster ROP at a lower WOB speed.
2. The cone -shaped part can reduce the vibration of the drilling column, which is beneficial to the hard rock layer in the drilling.