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Shallow hot-water ice drill: Estimation of drilling parameters and testing
Cold Regions Science and Technology, 2018Abstract Shallow hot-water systems are well-known ice-drilling devices used to create holes for temperature measurements and monitoring of glacier dynamics, basal sliding, and englacial water-pressure. A shallow hot-water ice drill system designed at Jilin University is based on a commercial high-pressure washer, Karcher HDS 6/14C, that can deliver ...
Pavel Talalay +8 more
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Real Time Optimization of Drilling Parameters During Drilling Operations
International Petroleum Technology ConferenceDrilling Optimization is a main drive to reduce overall well cost. The current practice of performing drill off tests, whenever the founder point is reached, increases the risk of reducing bit life, wasting rig time, and depending on crew competency to find the best parameters.
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Influence of Drill Geometry Parameters on Helical Point Micro Drilling Performance
Materials Science Forum, 2016Helical point micro-drill is characterized by a continuous helical flank instead of the piecewise planar flank, and its improved drilling performance is validated compared with planar drill point by some researchers. In this study, to analyze the effect of geometry parameters of helical point drill on the drilling performance, the micro-drills with ...
Su Yan Zhang +5 more
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High speed laser drilling: Parameter evaluation and characterisation
2010Laser drilling of via- holes is one of the key processes in the production of MWT- and EWT- solar cells. Both cell concepts have their specific boundary conditions regarding hole diameter and number of holes per cell area but in both cases the processing time and the laser induced damage should be as small as possible.
Knorz, A. +4 more
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A Method for Drilling Parameters Evaluation, Applied for Drill Point Development
CIRP Annals, 1987During an investigation of machining parameters in drilling with Polycrystalline Diamond drills, methods to measure and evaluate the drill performance were developed. These methods enable the acquisition of all cutting forces, as well as cutting force distribution out of one standard drilling experiment.
J. Rotberg, A. Ber
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Real-Time Optimization of Drilling Parameters
Journal of Petroleum Technology, 2011This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 129126, ’Real Time Optimization of Drilling Parameters During Drilling Operations,’ by Tuna Eren, SPE, Eni E&P, and M. Evren Ozbayoglu, SPE (currently with the University of Tulsa), Middle East Technical University, originally prepared for the 2010 ...
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INFLUENCING PARAMETERS IN BONE DRILLING
2003Since fracture or crack of human bones means disturbance of the bones integrity, it is necessary to return the bone as precisely as possible into its previous position and to immobilise it to insure maximum avoidance of motion at the fracture site. In order to achieve optimal immobilisation, i.e.
Mihoci, Kristijan +2 more
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Measurement While Drilling in the Illinois Subsurface: Drilling Versus Compound Parameters
Transportation Research Record: Journal of the Transportation Research BoardThis study focuses on the investigation of detecting soil profiles encountered during exploratory drilling using continuous drilling parameters recorded in real-time, known as measurement while drilling (MWD). MWD is an instrumented drilling technique where drilling parameters, such as drilling rate, rotational speed, thrust, and torque, are recorded ...
Anshu Abhinav +4 more
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Drilling of bone: thermal osteonecrosis regions induced by drilling parameters
Biomedical Physics & Engineering Express, 2019Mohd Faizal Ali Akhbar +1 more
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