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Dynamic of percussive enginnering - Dissertation Example

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Dynamic of percussive enginnering

Oil wells were considered as the prosperity of a nation and the quantity of oil that was taken out from these oil wells originated to fall with the passage of the time. Thus the contemporary technical community has prepared vast scientific advances in the modification of the drilling methods that was tracked in the past. The oil well drilling systems that were utilized in the older age convoluted the conventional drilling technique which was named as the percussion technique (Beck, 1995). This technique was being extensively used in nearly all the oil wells throughout the world. In this oil well drilling method the earth's crust is infiltrated by the help of a very weighty device that take out the oil by way of a hole. The chief drawback of this technique was that this procedure was actually time based method and the drilling had to be irregularly suspended. Now along with new methods of drilling, the percussion drilling is also modified with latest technologies in order to improve its performance (Hartman, 1959). In the incident of the contemporary drilling techniques the oil well drillers utilize the horizontal drilling process, which came to be really efficient technology when matched to the conventional drilling technique that was utilized till then. The utmost benefit of this technique was that the wells, which were penetrated by the horizontal method, had greater surface area which consecutively prepared the well to be tremendously productive (Hartman, 1963)....
agmented rock characteristic of geothermal developments is compatible to impact drilling because there is diminutive or no plastic distortion of the rock (Harpst and Davis, 1949). Percussion drilling utilizes a back and forth down-hole piston/anvil structure to put on impact loading either to a custom roller-cone bit or to a one-piece bit set with diamond coated insertions. CONTENTS S.no Topic Pages 1 Introduction & literature Review 1-2 1.1 Introduction 1-2 1.1.1 Background and context 1 1.1.2 Thesis objectives 1-2 1.2 Literature Review 3-15 1.2.1 Drilling Methods 4-5 1.2.2 Examples of drilling methods 5-12 1.2.2.1 Rotary drilling 5-8 1.2.2.2 Percussive drilling 9-10 1.2.2.3 Rotary – Percussive drilling 10-11 1.2.2.4 Other drilling 11-12 1.2.3 Drill bits 12-15 2 Percussive Drilling 16-27 2.1 Introduction to percussive drilling 17 2.2 Principle of Operation 17-19 2.3 Pros and Cons of percussive drilling 19-21 2.3.1 Pros 19-20 2.3.2 Cons 21-22 2.3.3 Percussive drilling development 22-23 2.3.4 Mathematical Models 23-27 3 Non-linear dynamics techniques 28-31 3.1 Introduction 28-29 3.2 Bifurcation, Poincare map and chaos 29-31 3.2.1 Bifurcation 29-30 3.2.2 Poincare map 30 3.2.3 Chaos 31 4 Mathematical modelling 32-40 4.1 Description of the mathematical model 32-34 4.2 Numerical results 34-36 4.2.1 Steady state response 26-39 4.2.2 Bifurcation and progression of the model over a range of static force 39-40  5 Conclusion 41 Bibliography 1. Introduction & literature Review 1.1 Introduction 1.1.1 Background and context Material removal rate in the drilling region is one of the significant factors of determination of drilling economics. Over-all drilling expenses can be solved by forecasting the material removal rate and employed for pit preparation. The features which upset ...Show more

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The objective of this study “Dynamics of Percussive Engineering” is to methodologically modeling & simulation of the structure under ultrasonic percussive drilling. The study focuses on intensive literature review that encompasses drilling methods. …
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