Results 31 to 40 of about 955 (135)

Modelling and control of the roll-stabilised control unit of a rotary steerable system directional drilling tool

The Journal of Engineering, 2019
A directional drilling tool control unit whose design is based on servo control of a rotary valve using the roll-stabilised instrumented system approach has been successfully used in oil fields for over 20 years.
Hamid Alturbeh, James F. Whidborne, Patrick Luk, Martin Bayliss   +3 more
doaj   +1 more source

The Influence of the Machining Drill and Direction of Rotation on the Surfaces of Ti6Al4V Dental Implants Subjected to Implantoplasty

Journal of Functional Biomaterials
Implantoplasty is widely used to treat peri-implantitis by removing biofilms from Ti6Al4V dental implants using rotating drills. This study examined the effects of diamond and tungsten carbide drills, and rotation direction (clockwise/counterclockwise), on surface modification, corrosion behavior, and cytotoxicity.
Esteban Padullés-Gaspar, Francisco Real-Voltas, Esteban Padullés-Roig, Miguel Punset, Guillermo Cabanes, Pablo Fernández, Javier Gil   +6 more
openaire   +4 more sources

A guide for prompt rate of penetration prediction using machine learning models with comparative analysis

Journal of Engineering and Applied Science
The rate of penetration (ROP) is a critical parameter in drilling which it reflects drilling time, efficiency, and costs. Several approaches have been investigated to handle complex and non-linear drilling parameters for precise prediction for this ...
Ahmad Atef Husseiny, Attia M. Attia, Ahmed G. Hagag   +2 more
doaj   +1 more source

Long distance laying technology of casing for connected roadway directional borehole in underground coal mine and its application

Frontiers in Built Environment
Aiming at the problem of long distance laying of casing for connected roadway directional borehole in underground coal mine, the bending capacity and passing capacity of casing were calculated and analyzed with the large diameter casing of Ф219 × 8.94 mm
Gao Kuiying, Li Guo, Li Zhibin, Mo Haitao, He Yijun, Li Xiongwei   +5 more
doaj   +1 more source

Development and prospects of underground intelligent drilling rigs for coal mines

Meitian dizhi yu kantan
BackgroundIn coal mines, underground intelligent drilling rigs serve as critical equipment for gas extraction and water hazard prevention and control. With increasing mining depth, extreme operating conditions, including elevated gas concentration and ...
Ningping YAO, Quanxin LI, Qianhai LU, Guangyu PENG, Gang ZHANG, Youzhen ZHANG   +5 more
doaj   +1 more source

Optimization of an Intelligent Autonomous Drilling Rig: Testing and Implementation of Machine Learning and Control Algorithms for Formation Classification, Downhole Vibrations Management and Directional Drilling

, 2019
Master's thesis in Petroleum ...
Løken, Erik Andreas, Løkkevik, Jens
openaire   +2 more sources

Research on Pressure Control of Hydraulic System for Pump Controlled Anchor Drilling Machine Based on Variable Universe Fuzzy PID Algorithm

Machines
To address significant pressure fluctuations in anchor drilling machine systems during the drilling and anchoring support of complex coal roadway surrounding rock, a variable universe fuzzy PID control strategy was proposed to regulate the speed of the ...
Zheng Yan, Guangwei Tang, Youshan Gao
doaj   +1 more source

Key Technical Progress and Development Trend of Automated Drilling

Shiyou jixie, 2017
To promote the overall development of automated drilling technology, foreign companies and research groups have increased the research efforts of relevant technology and take the initiative to cooperation and integration.SPE Drilling System Automation ...
Yang Chuanshu, Zhang Haolin, Xiao Li
doaj  

A Comprehensive Study on the Optimization of Drilling Performance in Hybrid Nano-Composites and Neat CFRP Composites Using Statistical and Machine Learning Approaches

Journal of Manufacturing and Materials Processing
Carbon fiber-reinforced polymer (CFRP) composites have gradually replaced metals due to their exceptional strength-to-weight ratio compared to metallic materials.
Tanzila Nargis, S. M. Shahabaz, Subash Acharya, Nagaraja Shetty, Rashmi Laxmikant Malghan, S. Divakara Shetty   +5 more
doaj   +1 more source

A glimpse of horizontal directional drilling productivity factors

MATEC Web of Conferences, 2018
Horizontal Directional Drilling (HDD) is a trenchless technology provides an installation alternative that offers a lot of benefit compared to traditional open-cut method.
Salleh Mohd Norizam, Azam Haron Nuzul, Mohd Shafri Helmi Zulhaidi, Abdullah Abdul Aziz, Ahmad Nadzrol Fadzilah   +4 more
doaj   +1 more source