Results 1 to 10 of about 161,873 (336)
Prediction of Drill Bit Breakage Using an Infrared Sensor [PDF]
Sensors, 2021 In this paper, a novel drill bit breakage prediction method featuring a low-cost commercial infrared sensor to monitor drill bit corner wear is proposed.
Min-Jae Jeong +5 more
doaj +2 more sources
One-Dimensional Convolutional Neural Network for Drill Bit Failure Detection in Rotary Percussion Drilling [PDF]
Mining, 2021 Drill bit failure is a prominent concern in the drilling process of any mine, as it can lead to increased mining costs. Over the years, the detection of drill bit failure has been based on the operator’s skills and experience, which are subjective and ...
Lesego Senjoba +5 more
doaj +2 more sources
Influence of bit size on stability bottom drill column balance when drilling a horizontal well
Известия высших учебных заведений: Нефть и газ, 2021 The article raises the question that if you change the bit type, the "critical length" of the lower part of the drill string change too. For the first time, the issue of the stability of the lower part of the drill string when drilling a horizontal ...
V. G. Griguletsky, A. B. Kuznetsov
doaj +2 more sources
Impact of drill bit wear on temperature increase in dental implant osteotomy: an in vitro study. [PDF]
PLoS OneSorgato M +4 more
europepmc +3 more sources
Study on the Structure and Tribological Behavior of Zn - Ni Coating by Pack - Cementation [PDF]
Cailiao Baohu, 2021 In order to improve the friction and wear properties of 45 steel’s surface surface, a Zn - Ni coating was prepared on 45 steel’s surface by pack - cementation method.
ZHANG Jin, LIN Yuan - hua, GUO Meng - xin, XIANG - Huan, RAN Xue - lin, HUANG Min
doaj +1 more source
Impact of Drill Bit Wear on Screw Withdrawal Resistance in Pinewood. [PDF]
Materials (Basel)Sydor M, Waszkiewicz K, Potok Z.
europepmc +3 more sources
Similarity evaluation of stratum anti-drilling ability and a new method of drill bit selection
Petroleum Exploration and Development, 2021 Considering the stratum anti-drilling ability, drill bit working conditions, drill bit application effect and drill bit economic benefits, the similarity of stratum anti-drilling ability was evaluated by grey relational analysis theory to screen out ...
Tie YAN +6 more
doaj +1 more source
Energies, 2021 Drilling volumes should be increased in order to increase hydrocarbon production, but this is impossible without the usage of high-quality drilling tools made of modern structural materials.
Oleg Bazaluk +5 more
doaj +1 more source
Geofluids, 2021 A reverse circulation Down-The-Hole (DTH) hammer drill bit in Casing-while-Drilling (CwD) processes is designed and applied to drilling under complicated formation.
Bo Qi +7 more
doaj +1 more source
Analysis of Materials and Modern Technologies for PDC Drill Bit Manufacturing
Успехи физики металлов, 2020 The article presents a review of polycrystalline diamond composite (PDC) drill bit manufacturing technologies and used metals in order to provide surface quality and accuracy as well as to attract a wider range of scientists to find new technologies and ...
L. Ya. Ropyak, T. O. Pryhorovska, K. H. Levchuk
doaj +1 more source