Energy Science &Engineering, EarlyView.On the basis of core and log data, a Bayesian‐Optimized Random Forest model achieved 92.76% accuracy in classifying tight sandstone reservoirs. A gray relational analysis‐derived evaluation index shows > 80% consistency with actual gas zones. ABSTRACT Tight sandstone gas (TSG), an unconventional oil–gas resource, has heterogeneous reservoirs ...
Yin Yuan +8 more
wiley +1 more source
Reasonable drilling angle and technology application for pre-cracking thick-hard roofs before driving gob-side roadways in ultra-thick seams. [PDF]
Sci RepHe F, Wu Y, Wang D, Zhang J, Tao K.
europepmc +1 more source
Study on the Influence of Slope Static Load on Shallow Lining Support Structure
Energy Science &Engineering, EarlyView.On the basis of the background of the shallow‐buried main adit supported by stone lining, the mechanical model of the supporting structure is constructed, and the stability of the supporting structure is analyzed by using the methods of field investigation, theoretical analysis, and numerical simulation.
Hongwei Wang +3 more
wiley +1 more source
Research and Application of Mining-Induced Fracture Evolution and the Mechanism of Pressure Relief Gas Migration and Storage in Overlying Strata during Soft Rock Protective Layer Mining. [PDF]
ACS OmegaCheng X, Yang Y, Zhao G, Chen Y.
europepmc +1 more source
Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway
Energy Science &Engineering, EarlyView.Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu +9 more
wiley +1 more source
Analysis of water-permeable fractured zone in weakly cemented overburden considering rock strain-softening. [PDF]
Sci RepXue S, Wang Q, Song Z.
europepmc +1 more source
Energy Science &Engineering, EarlyView.A comparative study was conducted on gas desorption laws of raw and tectonic coals. The sensitivity of regional and local outburst prediction indexes was compared. Gas content is more sensitive than gas pressure for composite coal seams. K1 can more accurately predict the outburst danger than Δh2 $\Delta {h}_{2}$ in composite coal seams.
Haijun Guo +4 more
wiley +1 more source
Application of Seismic Sensors in Measurement While Drilling. [PDF]
Sensors (Basel)Khanal M +5 more
europepmc +1 more source
Study of sample drilling techniques for Mars sample return missions [PDF]
To demonstrate the feasibility of acquiring various surface samples for a Mars sample return mission the following tasks were performed: (1) design of a Mars rover-mounted drill system capable of acquiring crystalline rock cores; prediction of ...
Harris, P. T., Mitchell, D. C.
core +1 more source
Energy Science &Engineering, EarlyView.Interpretable tree‐based models integrate microseismic, geological, and mining indicators to predict short‐term rockburst risk. SHAP analysis reveals the dominant role of energy‐related features and clarifies nonlinear factor interactions, enabling transparent and reliable early‐warning in deep coal mines.
Shuai Chen +4 more
wiley +1 more source