In-situ tests on quantitative evaluation of rock mass integrity based on drilling process index
The real-time response characteristics of drilling tools contain important engineering geological information. By interpreting the drilling data, the rock mass integrity can be quantitatively evaluated, which provides a new way to quickly obtain the ...
CAO Rui-lang 1, WANG Yu-jie 1, ZHAO Yu-fei 1, WANG Xiao-gang 1, HE Sun-wen 2, PENG Lin-jun 3
doaj +1 more source
The aims of the present study were to compare the percentages of articular cartilage removed using a lateral drilling approach of the proximal interphalangeal joint (PIPJ) and a dorsal drilling approach, and to assess the usefulness of digital ...
Alessandro Spadari +6 more
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Downhole logging as a paeoceanographic tool on ocean drilling program leg 138: Interface between high-resolution stratigraphy and regional syntheses [PDF]
On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic ...
Bloomer, Stephen F. +6 more
core +6 more sources
Experimental study on measurement of rock strength parameters based on digital drilling technology
Quick and accurate advance acquisition of mechanical parameters of rock mass is an important prerequisite for guiding the safe construction of rock mass engineering.
WANG Yu-jie 1, SHE Lei 1, 2, 3, ZHAO Yu-fei 1, CAO Rui-lang 1
doaj +1 more source
A new method for determining strength parameters of rock using digital drilling technology
Fast and accurate prediction for mechanical parameters of rock mass is an important prerequisite for guiding the safe construction of rock engineering.
Guo Qiang, Xudong Ma, Xinxing Liu
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Fatigue evaluation in maintenance and assembly operations by digital human simulation [PDF]
Virtual human techniques have been used a lot in industrial design in order to consider human factors and ergonomics as early as possible. The physical status (the physical capacity of virtual human) has been mostly treated as invariable in the current ...
A Garg +42 more
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The effects of multiple drilling of a bone with the same drill bit: thermal and force analysis
Repeated use of the same drill bit during drilling wears off the cutting edges, which can lead to a significant increase in heat as a result of friction, which is harmful to a bone above 55 °C.
Jean Gustave Tsiagadigui +5 more
doaj +1 more source
Seismic stratigraphy of the Ontong Java Plateau [PDF]
The Ontong Java Plateau, a large, deep-water carbonate plateau in the western equatorial Pacific, is an ideal location for studying responses of carbonate sedimentation to the effects of changing paleoceanographic conditions.
Bassinot, Frank +8 more
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DRILLING OPTIMIZATION IN ROMANIAN GAS FIELDS USING ADVANCED DIGITAL TOOLS [PDF]
The continuous evolution of the energy industry, driven by decarbonization goals and digital transformation imperatives, has led to significant advancements in drilling operations.
Viorel Dragomir +5 more
doaj +1 more source
Various problems faced by well drillers in carrying out drilling. The problem is the lack of understanding of well drillers in marketing well drilling services that are in accordance with today's all-digital conditions.
Hudriyah Mundzir +4 more
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