Control and prevention of gas outbursts in coal mines, Riosa–Olloniego coalfield, Spain

Aguado, María Belarmina Díaz; Nicieza, Celestino González

doi:10.1016/j.coal.2006.05.004

Cited by 257 publications

(100 citation statements)

References 14 publications

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“…The risk connected with the presence of numerous natural hazards, including gas-related hazards, grows with the depth of exploitation (Hargraves 1983;Díaz Aguado and González Nicieza 2007;Xue et al 2014). The exploitation of copper deposits located at increasingly deeper levels results in the appearance of new hazards, previously unknown to the copper mining industry.…”

Section: Introductionmentioning

confidence: 99%

Balancing the amount and composition of gas contained in the pore space of cupriferous rocks

Kudasik

Skoczylas

2018

Environ Earth Sci

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From the perspective of economy and safety, balancing gas contained in the pore space of rocks is extremely essential, predominantly to establishments dealing with extraction of mineral resources. One of the main methods of evaluating the amount and composition of gas contained in the pore space of a rock is releasing the gas as a result of comminuting the investigated rock material. In the case of cupriferous rocks, effective comminution is a very difficult task, due to the strength properties of these rocks. The present paper discusses the results of studies into the gas content of cupriferous rocks, obtained by means of an original device named the GPR analyzer. The research was done on 41 samples of dolomites and anhydrites from various areas of two copper mines located in Poland: "Rudna" and "Polkowice-Sieroszowice." For all samples, on the basis of microscope analyses performed on cuts and polished sections, the open porosity, closed porosity, and total porosity were determined. In the case of the dolomite samples, the total porosity variability fell in the range of 4.75-23.05%, and in the case of the anhydrite samples-in the range of 3.87-16.60%. The maximum gas content of the dolomite samples was 166.67 cm 3 /kg, and of the anhydrite samples-84.66 cm 3 /kg. In some of the studied samples, the presence of methane was confirmed. Toxic gases, such as H 2 S, were not found. The main gas in the pore space of the investigated rocks was nitrogen. Knowing the amount of the released gas and the value of the closed porosity in the investigated samples, the authors were able to estimate the pore pressure of the gas, whose maximum value was 0.583 MPa.

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Section: Introductionmentioning

confidence: 99%

Balancing the amount and composition of gas contained in the pore space of cupriferous rocks

Kudasik

Skoczylas

2018

Environ Earth Sci

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“…When the value of this parameter is not known, it can be deduced from mining experience. Figure 4A,B represent the specific methane emissions in m 3 of methane per raw ton and the average methane flow in m 3 of gas per day for a typical underground mine in Asturias [26][27][28].…”

Section: Case History 1: La Camocha Collierymentioning

confidence: 99%

Estimating Limits for the Geothermal Energy Potential of Abandoned Underground Coal Mines: A Simple Methodology

Díez

Díaz-Aguado

2014

Energies

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Flooded mine workings have good potential as low-enthalpy geothermal resources, which could be used for heating and cooling purposes, thus making use of the mines long after mining activity itself ceases. It would be useful to estimate the scale of the geothermal potential represented by abandoned and flooded underground mines in Europe. From a few practical considerations, a procedure has been developed for assessing the geothermal energy potential of abandoned underground coal mines, as well as for quantifying the reduction in CO 2 emissions associated with using the mines instead of conventional heating/cooling technologies. On this basis the authors have been able to estimate that the geothermal energy available from underground coal mines in Europe is on the order of several thousand megawatts thermal. Although this is a gross value, it can be considered a minimum, which in itself vindicates all efforts to investigate harnessing it.

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“…Gonzá lez Nicieza, 2007). Therefore, compared with the above methods, predicting coal and gas 49 outbursts by gas pressure must have higher accuracy and universality.…”

Section: Introduction 24mentioning

confidence: 99%

A Continuous Dynamic Prediction Model of Gas Pressure Based on Gas Emission at Excavation Face and its Engineering Application

Chen

Wang

2016

Preprint

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Gas pressure is one of the necessary conditions for the occurrence of coal and gas 11 outburst. Realization of continuous and dynamic gas pressure forecasting is of significance for 12 prevention and control of coal and gas outburst. In this work, we established a gas pressure 13 prediction model based on the source of gas emission with considering fluid-solid coupling 14 process. The verified results showed that the predicted gas pressure was roughly consistent with 15 the actual situation, indicating that the prediction model is correct. And it could meet the need of 16 engineering projects. Coal and gas outburst dynamic phenomenon is successfully predicted in 17 engineering application with the model. Overall, prediction coal and gas outburst with the gas 18 pressure model can achieve the continuous and dynamic effect. It can overcome both the static and 19 sampling shortcomings of traditional methods, and solve the difficulty of coal and gas outburst 20 prediction at the excavation face. With its broad applicability and potential prospect, we believe 21 the model is of great importance for improving prevention and control of gas disasters. 22

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Control and prevention of gas outbursts in coal mines, Riosa–Olloniego coalfield, Spain

Cited by 257 publications

References 14 publications

Balancing the amount and composition of gas contained in the pore space of cupriferous rocks

Balancing the amount and composition of gas contained in the pore space of cupriferous rocks

Estimating Limits for the Geothermal Energy Potential of Abandoned Underground Coal Mines: A Simple Methodology

A Continuous Dynamic Prediction Model of Gas Pressure Based on Gas Emission at Excavation Face and its Engineering Application

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