Comparative analysis of tangentially laser-processed fluted polycrystalline diamond drilling tools

2016 ◽  
Vol 23 ◽  
pp. 157-164 ◽  
Author(s):  
M. Warhanek ◽  
C. Walter ◽  
M. Hirschi ◽  
J. Boos ◽  
J.F. Bucourt ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Polycrystalline Diamond ◽  
Diamond Drilling ◽  
Drilling Tools

Small Holes Fabrication on Soda Glass by Self-Elastic Polycrystalline Diamond Tool

2012 ◽  
Vol 516 ◽  
pp. 516-521
Author(s):  
Chung Chieh Cheng ◽  
Dong Yea Sheu
Keyword(s):  
Surface Roughness ◽  
Diamond Tool ◽  
Polycrystalline Diamond ◽  
The Self ◽  
High Quality ◽  
Drilling Tool ◽  
Drilling Tools ◽  
Absorbing Materials ◽  
New Type ◽  
Small Holes

This study describes a novel process to drill small holes in brittle materials such as glass, silicon and ceramic using a self-elastic polycrystalline diamond (PCD) drilling tool. In order to improve the surface roughness and reduce crack of the small holes, a new type of self-elastic PCD drilling tool equipped with vibration absorbing materials inside the housing was developed to fabricate small holes in glass in this study. The self-elastic PCD drilling tools could absorb the mechanical force by the vibration absorbing materials while the PCD tool penetrates into the small holes. Compared to conventional PCD drilling tools, the experimental results show that high-quality small holes drilled in glass can be achieved with cracking as small as 0.02mm on the outlet surface using the self-elastic PCD drilling tool.

scholarly journals Examination of Polycrystalline Diamond Compact Cutter used in Drilling Tools in the Oil Industry

2013 ◽  
Vol 19 (S2) ◽  
pp. 1050-1051 ◽  
Author(s):  
J.N. Williard ◽  
D.K. Colbert
Keyword(s):  
Polycrystalline Diamond ◽  
Oil Industry ◽  
Drilling Tools ◽  
Polycrystalline Diamond Compact

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.

Wear of Diamond Composites Applied as Inserts in Drilling Tools

2010 ◽  
Vol 660-661 ◽  
pp. 468-473
Author(s):  
Guerold Sergueevitch Bobrovinitchii ◽  
Marcello Filgueira ◽  
Sérgio Neves Monteiro ◽  
Rômulo Crespo Tardim
Keyword(s):  
Double Layer ◽  
Wear Mechanism ◽  
High Power ◽  
Main Parameter ◽  
Cutting Tools ◽  
Polycrystalline Diamond ◽  
Rock Drilling ◽  
Industrial Operation ◽  
Drilling Tools

In the rock-drilling industry, double layer polycrystalline diamond-hardmetal (Dia-HM) inserts for cutting tools are subjected to elevated levels of wear due to the high power involved in the process. A research performed by focusing on the wear mechanism has shown that the complexity of the actual industrial operation can be reproduced in laboratories. The present work developed a methodology to calculate the theoretical values of wear of drilling tools. The main parameter selected for this methodology was the amount of disaggregated rock. The information acquired through this methodology gives one a complete perspective about the application of Dia-HM inserts to be used in drilling tools.

scholarly journals Сomparative analysis of efficiency of use a screw drill on frozen soil

2021 ◽  
Vol 18 (2) ◽  
pp. 160-167
Author(s):  
I. G. Martiuchenko ◽  
M. I. Zenin
Keyword(s):  
Comparative Analysis ◽  
Shear Deformation ◽  
Frozen Soil ◽  
Drilling Process ◽  
Action Current ◽  
Drilling Tool ◽  
Drilling Tools ◽  
Permafrost Soils ◽  
Soil Destruction ◽  
Technical And Economic Indicators

Introduction. Drilling of frozen and permafrost soils is one of the complex and energy-intensive processes of earthworks. Drilling tools used on frozen soils implement the process of drilling the soil by deformation of cutting or crushing action. Current drilling tools are not efficient enough to use because they implement energy-intensive drilling processes and are not always suitable for various types of soils. A screw drill is considered, which implements the process of soil destruction by shear and shear deformation, which is less energy intensive.Materials and methods. On the basis of theoretical studies of the interaction of 3 types of drilling tools with frozen soil, a comparative analysis was carried out to determine the efficiency of a screw drill use. The technical and economic indicators of the drilling process were compared. A method for determining the efficiency of the use a screw drill based on the analysis of special target functions is presented.Results. The results of a comparative analysis of drilling tools have been obtained. Depending on the nature of soil deformation, the effectiveness of one drilling tool over another is determined. As a result of a comparative analysis of the drilling speed and the energy intensity of the drilling process, the efficiency of the screw drill was established.Discussions and conclusion. In the course of the comparative analysis, the efficiency of the screw drill was determied, which implements shear deformation and soil separation, justifying the feasibility of further research.

New features of rock-cutting tools equipped with diamond-carbide cutting elements

2020 ◽  
pp. 74-84
Author(s):  
M. V. Vorobieva ◽  
S. A. Perfilov ◽  
A. A. Pozdnyakov ◽  
R. L. Lomakin ◽  
V. D. Blank
Keyword(s):  
Mechanical Properties ◽  
Oil And Gas ◽  
New Technologies ◽  
Cutting Tools ◽  
Physical And Mechanical Properties ◽  
Polycrystalline Diamond ◽  
Oil And Gas Industry ◽  
Global Market ◽  
Drilling Tools ◽  
Drilling Conditions

The paper describes conducted feasibility study and scientific and technical basis for creation of technology for drilling tools with diamond-carbide cutting elements. The results of technological processes of production of diamond-carbide inserts (DCI) manufactured by Technological Institute for Superhard and Novel Carbon Materials (TISNUM), which are designed for operation and implementation in various drilling conditions were presented. The DCI differentiated physic-chemical and performance characteristics, depending on the physic-mechanical properties of rocks formations, the particular construction of wells and other drilling conditions. A complex of studies of physical and mechanical properties of DCI, their relationship with the structural and technological factors, performance of bits equipped with DCI, the nature of bits wear were conducted, including pilot testing of new polycrystalline diamond compact bits (PDC bits) with polycrystalline diamond cutters produced by TISNUM at the facilities of JSC Gazprom Neft. The possibilities of industrial production of DCI and premium drilling bits on the basis of TISNUM technologies are shown, which will ensure demands of the Russian oil and gas industry, allowing import dependence elimination, and in future start of export. Ultimately, by 2025, with the help of new technologies, it will be possible to occupy up to 25– 30% of the global market for drilling tools and equipment.

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