Results 41 to 50 of about 5,119,526 (356)
Research on Vibration Reduction and ROP Acceleration for Drilling in KOA Oilfield,Kazakhstan
Shiyou jixie, 2023 The KOA oilfield is located in the eastern margin of the Caspian Basin,Kazakhstan.The shallower Upper Permian of the oilfield is found with severe interbeding between sandstone and mudstone as well as interlayers of mudstone/slate and conglomerate.The ...
Wang Jianning +4 more
doaj
Experimental evaluation of anti-stripping additives on porous asphalt mixtures [PDF]
, 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 +2 more sources
Method for calculation of drilling-and-blasting operations parameters for emulsion explosives [PDF]
, 2019 Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well as physical and mechanical ...
Khomenko, O +3 more
core +1 more source
Experimental research into the effect of some operation factors and rock properties on the rate of penetration [PDF]
, 2020 Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP). Methods.
Ali, Mahrous A.M. +4 more
core +1 more source
Improvement of drilling efficiency in underground mines in Russia
IOP Conference Series: Earth and Environment, 2019 Russian and foreign equipment and technologies of drilling are reviewed. The integrated assessment of blasthole drilling energy efficiency is carried out in terms of air-powered hammer P-160-5,5 SHV operation with drilling rig BP100P in a mine ...
V. Karpov +3 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
Energy Reports, 2023 Geothermal reservoir rocks have the characteristics of high stress, high hardness and high abrasiveness, which makes the drilling rate low and the drilling cost high, and hinders the application of geothermal energy. Improving drilling efficiency in hard
Jian Huang +6 more
doaj +1 more source
Minimization of tool path length of drilling process using particle swarm optimization (PSO) [PDF]
, 2020 In the era of challenging economic, the industry in our country has been forced to produce a good quality product and increase the productivity of machining process simultaneously in order to compete with other countries.
Abdullah, Haslina +5 more
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Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study
Advanced Engineering Materials, EarlyView.This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud +7 more
wiley +1 more source
Offshore Drilling and Energy Conservation: The Relative Impact on Gas Prices [PDF]
, 2008 This issue brief compares projected savings from drilling in presently restricted offshore zones and savings if the nation had continued adjusting fuel efficiency standards at 1980-1985 rates.
Dean Baker, Nichole Szembrot
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