Design of Impregnated Diamond Bit Based on Slipping Formation
Wang Jialiang
Zhang Shaohe
Abstract：Weakening matrix theory was applied on design of the drilling bit in order to improve the drilling efficiency of impreg-nated diamond bit in hard compact rock formation in this study.The matrix was analyzed with SEM and EDS.The results show that it can help improve drilling rate by putting matrix weakening particle into matrix.Under the process of drilling,the weake-ning particle can drop easily from matrix developing non-smooth surface;the pressure between surface and rock is increased and the weakening particle participates in wearing matrix,increasing abrasive power of rock powder,promoting speed of dia-mond metabolism.There is an optimum range for matrix weaken ratio,designing too high or too low simply can not improve drilling rate and bit life.
Keywords：weakening matrixdiamond bitnon-smooth surfaceparticle of weakening matrixweakening ratioengineering geology
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 895-900 )