Results 321 to 330 of about 193,780 (356)

Intelligent Optimization of Drilling Parameters Based on Multiple Drilling Agents

International Petroleum Technology Conference
Abstract Drilling parameter optimization is one of the important ways to improve drilling efficiency and reduce drilling cost. Multi objective intelligent optimization technology has the characteristics of comprehensive consideration of factors and fast solution speed, and is suitable for drilling parameter optimization scenarios.
Zhijun Pei, Xianzhi Song, Zhijian Hu, Tao Pan   +3 more
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Selecting Optimum Drilling Parameters by Incorporating Vibration and Drilling Efficiency Models

IADC/SPE Drilling Conference and Exhibition, 2016
Abstract To avoid severe vibrations, different drillstem (or drillstring) vibration models have been used to predict and avoid resonance regions by selecting bottom hole assembly (BHA) components and operating parameters such as weight on bit (WOB) and RPM. The overall efficiency of the drilling operations can be evaluated using either a
M. F. Al Dushaishi, R. Nygaard, M. Andersen, C. Jeffery, S. Hellvik, A. Saasen, G. Hareland   +6 more
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Optimal Drilling Parameters Design Based on Single Drilling Depth Indicator in Controlled Gradient Drilling

2019
Controlled gradient drilling technology was put forward to solve the problem of narrow pressure margins in deep water drilling. In this paper, an optimization model for optimal drilling parameters design is established for controlled gradient drilling.
Jiangshuai Wang, Jun Li, Gonghui Liu, Hongwei Yang, Kuidong Luo   +4 more
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Identification of Drilling Parameters during the Flow Drill Screw Driving Process

Key Engineering Materials, 2018
The automobile manufacturing industry, until recent years, has been using steel for car body components and the main method for joining these components has always been Resistance Spot Welding. However, since the global trends toward CO2 reduction and resource efficiency have significantly increased, the importance and usage of lightweight materials ...
Fadik Aslan, Laurent Langlois, Philippe Mangin, Tudor Balan   +3 more
openaire   +1 more source

Shallow hot-water ice drill: Estimation of drilling parameters and testing

Cold Regions Science and Technology, 2018
Abstract 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, Gang Liu, Rusheng Wang, Xiaopeng Fan, Jialin Hong, Da Gong, Bowen Liu, An Liu, Sysoev Mihail   +8 more
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Real Time Optimization of Drilling Parameters During Drilling Operations

International Petroleum Technology Conference
Drilling 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, 2016
Helical 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, Zhi Qiang Liang, Xi Bin Wang, Tian Feng Zhou, Pei Yan, Si Yi Xue   +5 more
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High speed laser drilling: Parameter evaluation and characterisation

2010
Laser 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., Gutscher, S., Fell, A., Gundel, P., Preu, R.   +4 more
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A Method for Drilling Parameters Evaluation, Applied for Drill Point Development

CIRP Annals, 1987
During 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, 2011
This 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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