Results 11 to 20 of about 983 (135)

Genetic Analysis of Abnormally High Ground Temperature From the Existence of Magmatic Rock Beneath Pingdingshan Coalfield

open access: yesFrontiers in Earth Science, 2022
Studies on the genetic mechanisms of abnormally high ground temperatures in coalfields are of great significance for the efficient mining of coal mines and the development and utilization of geothermal water.
Qi Wang   +6 more
doaj   +1 more source

Early and middle Jurassic sequence stratigraphic division of M coalfield in Xinjiang [PDF]

open access: yesE3S Web of Conferences, 2022
The coal accumulation in the M coalfield occurred in the Early-Middle Jurassic. There are three main coal-bearing strata in the M coalfield, the Early Jurassic Talicike Formation, the Yangxia Formation and the Middle Jurassic Kizilenur Formation.
Yao Qiuhui, Cui Kai
doaj   +1 more source

Current Situation and Development Trend for Coalfield Fire Exploration and Governance Technology

open access: yesMeikuang Anquan, 2020
In order to provide decision-making reference for the coalfield fire exploration and governance, and to promote the efficient and rapid development of coalfield fire prevention and control, the characteristics and applicability of drilling exploration ...
WANG Wei
doaj   +1 more source

A Prospective Appraisal for the Exploration of Fiber-applied Basalts in Leibo Area, Sichuan Province

open access: yesKuangchan zonghe liyong, 2022
Leibo area is located in the eastern edge of KangDian palaeocontinet, Emeishan basalts in the area are formed probably by typical terrestrial eruption, effusive facies.
Wei Yang   +4 more
doaj   +1 more source

Multiple-Level Tectonic Control of Coalbed Methane Occurrence in the Huaibei Coalfield of Anhui Province, China

open access: yesEnergies, 2022
The Huaibei coalfield is an important coal base and one of the hot spots of coalbed methane development in China. Therefore, a detailed understanding of gas occurrence in the Huaibei coalfield is of great significance.
Zhigen Zhao, Sheng Xue
doaj   +1 more source

A Gaussian process regression-based denoising method for transient electromagnetic signals

open access: yesMeitian dizhi yu kantan
ObjectiveThe transient electromagnetic (TEM) method serves as a primary geophysical technique for groundwater detection in coalfields at present, with the detection results directly influencing the implementation of water hazard prevention and control in
Peng WANG   +5 more
doaj   +1 more source

Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield

open access: yesMeitan kexue jishu, 2023
With the continuous development, processing and utilization of coal resources in our province, the existence of typical harmful elements in coal is bound to have a negative impact on the efficient and clean utilization of coal resources.
Guangqing HU   +6 more
doaj   +1 more source

Formal Quantification of Spatially Differential Characteristics of PSI-Derived Vertical Surface Deformation Using Regular Triangle Network: A Case Study of Shixi in the Northwest Xuzhou Coalfield

open access: yesRemote Sensing
This study addresses the challenge of quantifying spatially differential vertical surface deformation (SDVSD). Traditional approaches using persistent scatterer interferometry (PSI) data often focus on bulk vertical surface deformation (VSD) but overlook
Cunfa Zhao   +6 more
doaj   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

open access: yesDeep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li   +7 more
wiley   +1 more source

Mine Gas Emission Monitoring Following the Cessation of Mining Activities in a Hard Coal Region

open access: yesEngineering Proceedings
This article provides an in-depth overview of mine gas emission monitoring practices in the Ostrava-Karviná Coalfield (OKR), one of the most significant regions in Central Europe affected by post-mining methane leakage.
Vladimír Krenžel   +6 more
doaj   +1 more source

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