Coal Bed Methane System Modeling - Reservoir, Wells and Surface Facilities [PDF]
, 2011 Imperial Users ...
Ori-Jesu, Efeoghene, Ori-Jesu, Efeoghene
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Applied SciencesCompared with single coal seam mining, the stratum damage induced by shallow multi-seam mining is more severe and poses a risk of mine disasters that threaten the safety of coal mine personnel.
Xiaoshen Xie +4 more
doaj +1 more source
Five unconventional fuels: geology and environment [PDF]
, 2014 Unconventional fuels may present a viable partial replacement for conventional fossil fuel reservoirs (such as sandstone and limestone) in rocks onshore and offshore.
Stephenson, Michael H.
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Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam
Journal of Chemistry, 2015 Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling fluid, while they are not suitable for deep coal seam drilling due to mismatching density, insufficient bearing capacity, and poor reservoir protection effect.
Peng Xu +4 more
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Evaluation method of progressive failure of loess slope under shallow coal seam mining
Journal of Geophysics and EngineeringAbstract When mining coal under a loess gully, the surface slopes may exhibit significant discontinuous failure characteristics such as local failure and landslides. These characteristics, composed of failure and non-failure regions, form an essentially unstable mechanical system.
Bingchao Zhao +5 more
openaire +1 more source
Англійська мова для навчання і работи. Навчальний посібник з англійської мови за професійним спрямуванням для студентів і фахівців галузі знань 0503 Розробка корисних копалин Т 1 [PDF]
, 2010 A coursebook includes all the activities of students’ work at ESP course aimed at development of language behaviour necessary for effective communication of students in their study and specialism areas.
Зуєнок, І.І. +3 more
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Resource targets for advanced underground coal extraction systems [PDF]
Resource targets appropriate for federal sponsorship of research and development of advanced underground coal mining systems are identified. A comprehensive examination of conventional and unconventional coals with particular attention to exceptionally ...
Habib-Agahi, H. +3 more
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Geology of the Ponteland-Morpeth district: 1:10,000 sheets NZ 17 NE, SE and NZ 18 NE, SE: parts of 1:50,000 Sheets 9 (Rothbury) and 14 (Morpeth) [PDF]
, 1986 The geology, mineral resources and geotechnical characteristics of the Ponteland-Morpeth district (NZ17NE, SE and NZ18NE, SE)are described. Information on former workings in coal, sandstone and clays together with details of made ground are ...
Jackson, I., Lawrence, D.J.D.
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Hydrogeological characterisation of coal measures and overview of impacts of coal mining on groundwater systems in the Upper Hunter Valley of NSW [PDF]
, 2009 University of Technology, Sydney. Faculty of Science.Open cut coal mining in the Upper Hunter region of New South Wales has resulted in mine pit depths of 1 SO metres or more below the natural water table, and the backfilling and reshaping of more than
Mackie, CD
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Meitian dizhi yu kantanObjective The Shanxi Formation, deposited during the critical transitional period from the sedimentary filling of epicontinental sea basins to the sedimentation of continental basins, exhibits well-developed shallow-water delta systems and significant ...
Kai FENG +5 more
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