Strong Grinding Hard Brittle Strata Of Diamond Bit Application

When drilling strong grinding hard brittle strata, diamond bit drilling working environment than ordinary working environment is to bad, often appear bit group, shaved head, such as short life phenomena and make construction cycle is lengthened, exploration cost is increased, economic benefits drops apparently. This rock type in the exploration process is frequently encountered, thus solving the problem of low efficiency of rock drilling, drilling long-standing industry is a major technical problem. To solve this problem, and combined with the former research results, this paper analyzes the strong grinding hard brittle rock drillability, and then proceed to design the formation of the high efficiency, long life bit.The main content of this paper is divided into four parts:The first part outlines the diamond bit drilling strong grinding hard brittle strata the status and progress of research, and introduces the research content and significance.The second part analyzes the strong grinding hard brittle strata rock drillability, and the determination of the formation of typical rock A, B value, as the design basis.The third part of the strong grinding hard brittle strata drilling parameters design, including a bit of diamond grain size, concentration and mass selection, bit matrix wear resistance, water and lip shape design.The fourth part, the theoretical analysis, selection of suitable molding process for making strong grinding hard brittle strata the drill bit laboratory specimen, indoor experiment confirmed after the finished product to conduct field trials, the design result is better than ordinary drill bit.This paper summarizes the main research content and research results, and puts forward further research issues related to.