Waynesburg College Multiple Coal Seam Methane Extraction Well

1980 ◽  
Author(s):  
James N. Kirr ◽  
Greg E. Eddy ◽  
Robert Rahsman ◽  
Norman F. McGinnis
Keyword(s):  
Coal Seam ◽  
Methane Extraction ◽  
Coal Seam Methane

Characterisation of a microbial community associated with a deep, coal seam methane reservoir in the Gippsland Basin, Australia

2010 ◽  
Vol 82 (3-4) ◽  
pp. 232-239 ◽  
Author(s):  
David J. Midgley ◽  
Philip Hendry ◽  
Kaydy L. Pinetown ◽  
David Fuentes ◽  
Se Gong ◽  
...  
Keyword(s):  
Microbial Community ◽  
Coal Seam ◽  
Gippsland Basin ◽  
Coal Seam Methane

Potential for microbial enhancement of coal seam methane reservoirs in Australia

2008 ◽  
Vol 48 (2) ◽  
pp. 456
Author(s):  
Mohinudeen Faiz ◽  
Phil Hendry ◽  
Dongmei Li
Keyword(s):  
Coal Seam ◽  
Microbial Enhancement ◽  
Coal Seam Methane

scholarly journals Field Investigation of Hydraulic Fracturing in Coal Seams and Its Enhancement for Methane Extraction in the Southeast Sichuan Basin, China

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3451 ◽  
Author(s):  
Zuxun Zhang ◽  
Hongtu Wang ◽  
Bozhi Deng ◽  
Minghui Li ◽  
Dongming Zhang
Keyword(s):  
Coal Seam ◽  
Hydraulic Fracturing ◽  
Sichuan Basin ◽  
High Stress ◽  
Fluid Pressure ◽  
Field Investigation ◽  
Stress Sensitivity ◽  
Extraction Rate ◽  
Coal Seams ◽  
Methane Extraction

Hydraulic fracturing is an effective technology for enhancing the extraction of reservoir methane, as proved by field experience and laboratory experiments. However, unlike conventional reservoirs, coal seams had high stress sensitivity and high anisotropy. Therefore, the efficiency of hydraulic fracturing in coal seams needs to be investigated. In this study, hydraulic fracturing was performed at Nantong mine in the southeast Sichuan basin, China. The field investigation indicated that the hydraulic fracturing could significantly enhance the methane extraction rate of boreholes ten times higher than that of normal boreholes in one of the minable coal seams (named #5 coal seam). The performance of hydraulic fracturing in three districts revealed that compared with south flank, the fluid pressure was higher and the injection rate was lower in north flank. The methane extraction rate of south flank was inferior to that of north flank. It indicated hydraulic fracturing had less effect on #5 coal seam in south flank. Moreover, the injection of high-pressure water in coal seams could also drive methane away from boreholes. The methane extraction rate of the test boreholes demonstrated the existence of methane enrichment circles after hydraulic fracturing. It indicated that hydraulic fracturing did act on #5 coal seam in south flank. However, due to the high stress sensitivity of coal seams and the high geo-stress of south flank, the induced artificial fractures in #5 coal seam might close with the decline of the fluid pressure that led to a sharp decline of the methane extraction rate.

Coal Mine Methane Drainage and Comprehensive Utilization in China

2013 ◽  
Vol 295-298 ◽  
pp. 3023-3026 ◽  
Author(s):  
Qing Ye ◽  
Yan Pi ◽  
Zhen Zhen Jia ◽  
Hai Zhen Wang
Keyword(s):  
Coal Seam ◽  
Coal Mine ◽  
Chemical Production ◽  
Efficient Utilization ◽  
Effective Utilization ◽  
Coal Mine Methane ◽  
Development Stages ◽  
Methane Drainage ◽  
Coal Seam Methane ◽  
Methane Utilization

According to situation of coal mine methane drainage and utilization, the five experienced development stages of coal mine methane drainage technology was summarized, the reasons of low rate of coal mine methane drainage were analyzed. Coal-seam methane utilization was analyzed from methane purification, methane generating electricity, chemical production, methane for civil utilization and utilization as automobile fuel etc. With the coal seam methane drainage quantity is more and more, the emissions requirements is more and more strict, so the emission reduction and effective utilization of this energy is important to accelerate efficient utilization of coal methane, reduce greenhouse gas emissions, protect environment, alleviate the supply contradiction of energy and realize sustainable development of coal mine etc.

scholarly journals GAS PRESENCE OF THE COAL SEAM n8 OF THE LVIV-VOLYN BASIN

2013 ◽  
pp. 25-28
Author(s):  
I. Buchynska ◽  
P. Yavny ◽  
O. Shevchuk
Keyword(s):  
Natural Gas ◽  
Coal Seam ◽  
Methane Content ◽  
Methane Extraction

In the paper we have demonstrated the description of the structure, gas presence and methane content of the coal seam n8 of the Lviv-Volyn Basin. The map of its natural gas presence has been compiled. Executed studies have allowed us to distinguish the areas promising for possible methane extraction.   

Experimental study on the performance of drilling fluid for coal seam methane drainage boreholes

2020 ◽  
Vol 138 ◽  
pp. 246-255 ◽  
Author(s):  
Kai Wang ◽  
Zhen Lou ◽  
Lianhe Guan ◽  
Xiang Zhang ◽  
Binbin Qin ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coal Seam ◽  
Drilling Fluid ◽  
Methane Drainage ◽  
Coal Seam Methane

Coal Seam Methane Pressure as a Parameter Determining the Level of the Outburst Risk – Laboratory and in Situ Research / Ciśnienie Złożowe Jako Parametr Określający Stan Zagrożenia Wyrzutami Metanu I Skał – Badania Laboratoryjne I Kopalniane

2012 ◽  
Vol 57 (4) ◽  
pp. 861-869 ◽  
Author(s):  
Norbert Skoczylas
Keyword(s):  
Coal Seam ◽  
Laboratory Research ◽  
Methane Pressure ◽  
Strength Factor ◽  
Coal Seam Methane

Abstract Scarcity of research focusing on the evaluation of the coal seam methane pressure as a parameter determining the outburst risk makes it difficult to assess the value for which the level of this risk increases considerably. It is obvious that, apart from the gas factor, the evaluation of the threat should also take into account the strength factor. The research presented in this paper attempted at estimating the level of the outburst risk on the basis of the coal seam methane pressure value and firmness of coal. In this work, the author seeks to present both the relevant laboratory research and the measurements carried out in mines.

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