Results 11 to 20 of about 69,255 (297)

Real-Time Drilling Parameter Optimization Model Based on the Constrained Bayesian Method

open access: yesEnergies, 2022
To solve the problems of the low energy efficiency and slow penetration rate of drilling, we took the geological data of adjacent wells, real-time logging data, and downhole engineering parameters as inputs; the mechanical specific energy and unit ...
Jinbo Song   +6 more
doaj   +1 more source

Automated drilling algorithms implementation on a laboratory drilling rig [PDF]

open access: yesModeling, Identification and Control, 2020
Considering the state of art technology that exists today and the significant resources that are being invested into the technology of tomorrow, an idea of intelligent and fully automated machineries working on a drilling floor that is capable of ...
Erik Andreas Løken   +2 more
doaj   +1 more source

Automated Stratum Interface Detection Using the Optimized Drilling Specific Energy through Self-Adaptive Logistic Function

open access: yesSensors, 2023
The precise detection of stratum interfaces holds significant importance in geological discontinuity recognition and roadway support optimization. In this study, the model for locating rock interfaces through change point detection was proposed, and a ...
Kechen Liu   +6 more
doaj   +1 more source

Optimization of Drilling Process Parameters on Die Steel (H13) using Carbide Coated Drill by Design of Experiment Concept [PDF]

open access: yes, 2016
This experimental work presents the optimization of process parameter of surface roughness with using coated carbide drill on H13 steel. Taguchi design of experiments was implemented for executing the process parameter of Drilling process on H13 steel ...
Ganesh, J. (J)   +3 more
core   +1 more source

Experimental evaluation of anti-stripping additives on porous asphalt mixtures [PDF]

open access: yes, 2015
The open structure of porous asphalt mix influences its strength and durability against air, water and clogging materials. These factors cause loss of adhesion between binder-aggregate interface and loss of cohesion within the binder film.
Abdul Hassan, Norhidayah   +7 more
core   +3 more sources

Experimental Study on the Drilling Parameter Analysis of Banana Fiber Reinforced Vajram Mixed Phenolic Resin Composite Laminates

open access: yesJournal of Natural Fibers, 2022
Drilling operation of fiber reinforced polymeric (FRP) composites is significantly dissimilar from conventional drilling operation of metals; hence, identification of optimum drilling process parameters for FRP composites has become mandatory.
R. Sathish Kumar   +4 more
doaj   +1 more source

Determination of the suitable drilling operating parameters in different geological formations El-Sharara Oil Field (South-Western Libya) [PDF]

open access: yes, 2018
Purpose. The objective of this study is to determine the best operating conditions for the most notable drilling parameters (i.e. weight on bit (WOB), rotary drilling speed (RPM), and characteristics of drilling fluid) using field data obtained from El-
Abdellah, W, Boghdady, G, Sayed, M
core   +1 more source

Ultra low bending loss equiangular spiral photonic crystal fibers in the terahertz regime [PDF]

open access: yes, 2012
An Equiangular Spiral Photonic Crystal Fiber (ES-PCF) design in Topas® for use in the Terahertz regime is presented. The design shows ultra low bending loss and very low confinement loss compared to conventional Hexagonal PCF (H-PCF).
Agrawal, A.   +5 more
core   +2 more sources

Integrated Well Placement and Completion Optimization using Heuristic Algorithms: A Case Study of an Iranian Carbonate Formation [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2018
Determination of optimum location for drilling a new well not only requires engineering judgments but also consumes excessive computational time. Additionally, availability of many physical constraints such as the well length, trajectory, and completion ...
Reza Khoshneshin, Saeid Sadeghnejad
doaj   +3 more sources

Optimization of Drilling Parameters for Aluminum Metal Matrix Composite Using Entropy-Weighted TOPSIS under MQL Conditions

open access: yesEngineering Transactions, 2023
The aim of the present work is to understand the effect of drilling parameters (drill speed and feed rate) during the drilling of a Saffil fiber-reinforced Al metal matrix composite (MMC) under minimum quantity lubrication (MQL) condition.
Sachin G. GHALME, Paweł KAROLCZAK
doaj   +1 more source

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