Three kinds of high-efficiency PDC bits including FM2653Z,FMH3653ZZ and M1666SS bits were designed by using Z3 and AC types of cutting and fixed teeth with the disposition of six blades,superficial inner cone,extending cone crown profile and medium-high density mode,optimizing the hydraulic compositions of bits through CFD technology adopting screw gauge figure.

Study of force simulation test device of PDC bit cutting teeth;

Customize PDC bit to drill through long conglomerate interval;

Numerical simulation about effect of flow path on PDC bit fluid field;

Technology for flexible die forming of PDC bits;

A study on technology for bottom modeling of PDC bits;

Research on Design and Forming Process of the First Moulds of Matrix PDC Bits;

3D designing method of PDC drilling bits;

Method for identifying lithology with the condition of PDC drilling bit;

Different combinations of PDC drilling bits( hydraulic parameters are comprehensively reflected by flow field energy transformation at oil well bottoms.

Through comprehensive applications of many key projects,such as well location optimization technology,mixed oil drilling technology combined with using popularized PDC bits of high efficiency and high torque and low-velocity hobs of great power, deep well bore contro.

PDC bit has a lot of advantages, such as strong wearability, long-life, high drilling efficiency, low cost, wider range of application and easier to be made.