Results 181 to 190 of about 6,031 (262)

Simulation of directional crack propagation by energy-absorbing blasting in deep gob-side entry retaining under different lateral pressure coefficients. [PDF]

PLoS One
Liu N, Guo C, Bao S, Wang T, Zhang F, Qin Z.   +5 more
europepmc   +1 more source

Hole fluids for deep ice core drilling

Hole fluids for deep ice core drilling
P(論文) This paper is based on the data published in research report of P. G. Talalay and N. S. Gundestrup; Hole fluids for deep ice core drilling : A review. Copenhagen University, Copenhagen, 1999,120p. In the practice of deep ice core drilling only three types of bore-hole fluids have been used : 1) petroleum oil products (fuels or solvents ...
openaire  

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

Deep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang, Guoyao Xu, Liyuan Liu, Yao Zhang, Sitao Zhu, Hongyang Chu, Kaikai Zhao   +6 more
wiley   +1 more source

Research and engineering practice on mechanical reaming for pressure relief and rock burst prevention technology in hard coal seam roadways. [PDF]

Sci Rep
Xie JH, Ding ZW, Zhu GA, Hao XQ, Jia JD.
europepmc   +1 more source

Geological carbon dioxide storage in the German North Sea: Static‐to‐dynamic capacity refinement for a 10 Mt/y injection scenario

Deep Underground Science and Engineering, EarlyView.
This study assesses whether a saline aquifer in the German North Sea can sustain industrial‐scale CO2 injection at 10 Mt/year over 30 years. A 3D reservoir model is used to compare static capacity with dynamically achievable storage. The work links site‐scale injection strategy design with basin‐scale pressure response, providing a framework for ...
Firdovsi Gasanzade, Sebastian Bauer
wiley   +1 more source

Parametric study of a new pressure relief borehole layout for high-stress roadway rockburst prevention. [PDF]

Sci Rep
Lu F, Dou L, Chai Y, Ma X, Cao J, Li H.
europepmc   +1 more source

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

Deep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu, Qingwen Tan, Sen Zhu, Guangyou Zhu   +3 more
wiley   +1 more source

Application of Seismic Sensors in Measurement While Drilling. [PDF]

Sensors (Basel)
Khanal M, Duan T, Duan Y, Van De Werken M, Shen B, Li X.   +5 more
europepmc   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

Deep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan, Fangkai Liu, Sen Zhu, Guangyou Zhu, Haiping Huang   +4 more
wiley   +1 more source

Quantitative measurement of changes in mechanical properties of lunar soil simulant caused by drilling disturbances. [PDF]

iScience
Li Q, Li J, Xie L, Jiang J.
europepmc   +1 more source