Results 81 to 90 of about 309,171 (269)
Coalbed Methane Potential and Coal Characteristics in the Lati Region, Berau Basin, East Kalimantan [PDF]
, 2006 Http://dx.doi.org/10.17014/ijog.vol1no1.20063aA geological research was performed in the Berau Basin, to provide a better understanding on the potential and resources of coalbed methane (CBM) in Berau Regency, East Kalimantan Province, particularly in ...
Hermanto, B. (Bambang) +3 more
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The measurement of coal porosity with different gases [PDF]
, 2002 Sorption processes can be used to study different characteristics of coal properties, such as gas content (coalbed methane potential of a deposit), gas diffusion, porosity, internal surface area, etc.
Lemos de Sousa, M. J. +1 more
core +1 more source
The disaster law and control measures of high-stress tunnels in fault areas: a case study
Scientific ReportsIn recent years, the frequent occurrence of dynamic disasters in tunnels with high stress in fault areas has greatly threatened engineering safety. The typical case – a tunnel influenced by fault slip on is taken as a research object.
Wenjie Li +7 more
doaj +1 more source
Uncertainty Analysis Method for Rib Force Vector Control of Coiled Tubing Drilling Orientor
Shiyou jixieIn the process of coiled tubing （CT） directional drilling， the downhole parameters have some uncertainties. To more accurately control the wellbore trajectory to advance along the planned course， an uncertainty analysis method for rib force vector ...
Wang Wei +6 more
doaj +1 more source
Analysis of Gas Samples from Coalbed Methane Wells in Sullivan County, Indiana using Gas Chromatography [PDF]
, 2016 Although there has been an increase in natural gas production from coalbed methane (CBM) reservoirs in the past few decades, there are multiple inadequately known aspects of CBM reserves.
Niddery, Chad
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Energy Science & Engineering, 2019 China is vigorously promoting the development of coalbed methane (CBM) resources because CBM is cleaner than coal and a hazardous gas in coal mining. However, the CBM production in China is significantly lower than that in other coal‐rich countries, such
S. Tao, Shida Chen, Z. Pan
semanticscholar +1 more source
Shiyou jixieDeep coal-rock gas reservoir is sensitive to downhole pressure variation， and implementing kill operation may cause damage to gas production. Consequently， a full-process pressure-maintained operation technique of dual-tubing jet pump for deep coal-rock ...
Wu Jianjun +6 more
doaj +1 more source
Meitian dizhi yu kantanBackgroundNatural fractures serve as both the primary storage space for free gas of deep coalbed methane (CBM) and pathways for hydrocarbon migration. Furthermore, these fractures can enhance the porosity and permeability of strata under the deep, high ...
Jiangnan TONG +7 more
doaj +1 more source
User guide for the BGS UK Coal Resource for New Exploitation Technologies (Version 1) dataset [PDF]
, 2016 This report describes the Coal for New Technologies GIS dataset, which is a suite of data layers developed in 2004 by the British Geological Survey (BGS), with the assistance of Wardell Armstrong and Imperial College, London.
Gow, H.V., Myers, A.H., Smith, N.J.P.
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Documented international enquiry on solid sedimentary fossil fuels; Coal: definitions, classifications, reserves-resources and energy potential [PDF]
, 2002 This paper deals with all solid sedimentary fossil fuels, i.e. coal, the main one for geological reserves and resources, peat, and oil shales. Definitions of coal ( < 50% ash) and coal seam (thickness and depth limits) are examined in view of an ...
Alpern, B., Lemos de Sousa, M. J.
core +1 more source