Results 71 to 80 of about 284 (138)

Application research of borehole hydraulic fracturing technology for Linhuan Coal Mine

Gong-kuang zidonghua, 2015
In view of problems of low rate of gas extraction, too many drilling and short period of gas extraction in Linhuan Coal Mine, a method using borehole to implement hydraulic fracturing technology was put forward.
JIANG Qian, ZHANG Ruilin
doaj   +1 more source

Self-adaptive inverse wavefield transform and derived pseudo-wavefield characteristics under roadway-borehole observation of transient electromagnetic data

Meitian dizhi yu kantan
Objective To address the challenge of detecting aquifers outside the roadway excavation contour, this study combined the close-range detection via roadway-borehole transient electromagnetic (TEM) method with the wavefield transform.
Kerui FAN, Jianlei GUO, Ruoyu WANG, Ming ZHUANG, Fangze FAN, Sheng XU, Wentao ZHAO   +6 more
doaj   +1 more source

Transient response of some borehole mandrel tools

, 1989
The response of transient mandrel tools in realistic well-logging environments is simulated by first solving the problem analytically in the frequency domain using an efficient high-speed computer model.
Chew, Weng Cho, Anderson, Barbara
core  

Measuring vertical soil water content profiles by combining horizontal borehole and dispersive surface ground penetrating radar data

, 2020
To investigate transient dynamics of soil water redistribution during infiltration, we conducted horizontal borehole and surface ground penetrating radar measurements during a 4‐day infiltration experiment at the rhizontron facility in Selhausen, Germany.
van der Kruk, Jan, Johan Alexander Huisman, Yu, Yi, Jan Vanderborght, Huisman, Johan Alexander, Jan van der Kruk, Vereecken, Harry, Lutz Weihermüller, Weihermueller, Lutz, Harry Vereecken, Klotzsche, Anja, Weihermüller, Lutz, Yi Yu, Anja Klotzsche, Vanderborght, Jan   +14 more
core   +1 more source

Construction method of a transparent tunneling geological navigation system based on integrated borehole geophysical exploration

Meitan kexue jishu
Accurate acquisition of advanced geological information and experience-based decision-making remain major challenges for intelligent coal mine excavation. This study proposes a construction method for a transparent excavation geological navigation system
Tao FAN, Zaibin LIU, Jianyuan CHENG, Wei LI, Yue HAO, Zhenhua DAI, Xiaofeng DUAN, Wenming LIU, Guihong LI, Yaoquan GAO   +9 more
doaj   +1 more source

Replication Data for: A Probabilistic Approach to Establishing the Resistivity-Lithology Relationship using Co-located tTEM and Borehole Data

The datasets DAUGAARD.h5 and ESBJERG_ALL.h5 contain observed towed transient electromagnetic (tTEM) data from Daugaard and Esbjerg, Denmark, respectively, along with associated survey geometry.
Nielsen, Signe
core   +1 more source

A study on the technology of enhancing gas permeability and gas drainage by sectional hydraulic fracturing in directional long boreholes: a case study of the no. 8 coal seam in baode coal mine

Frontiers in Earth Science
Aiming at the technical problem of low efficiency of gas drainage in high-gas and low-permeability coal seams in China, this paper takes the No. 8 coal seam in Baode Coal Mine as the engineering background and conducts a study on the technology of ...
Zenghui Zhang, Jinlin Qiao, Sen Yang, Kaige Zheng, Di Zhang, Jian Zhang   +5 more
doaj   +1 more source

Identifying the lithologies and thicknesses of coal seam roofs and floors based on multiparameter logging of boreholes

Meitian dizhi yu kantan
BackgroundIn the process of coal mining, effective exploration methods for stratigraphic characteristics are crucial to underground operations. The reason is that the accurate stratigraphic characteristics of coal seams, along with the surrounding rocks ...
Zhe LI, Baobin GAO, Wenjie LEI, Donghui LI, Zixin LI   +4 more
doaj   +1 more source

Stochastic inversion of transient electromagnetic data to derive aquifer geometry and associated uncertainties [PDF]

Understanding processes in the Critical Zone requires reliable information about the vadose-zone aquifer, its geometry, and spatial variability. Commonly, such information is obtained from boreholes, yet large areas might render their application ...
Flores Orozco, Adrián; orcid:, Michel, Hadrien; orcid:, Hermans, Thomas; orcid:, Aigner, Lukas; orcid:   +3 more
core   +1 more source

Efficient base metal exploration in northern New Brunswick, Canada through a hybrid ANN integrated with ABC and PSO methods

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
This study investigates the application of a hybrid neural network model for delineating sulfide mineralization in complex geological settings. By integrating Artificial Neural Networks (ANN) with metaheuristic algorithms, specifically Artificial Bee ...
Claire Dusabemariya, Wei Qian, Romuald Bagaragaza, Ajibola Richard Faruwa, Ali Mossad   +4 more
doaj   +1 more source