Results 71 to 80 of about 3,623 (118)
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.
core
Создание 3D модели развития открытой разработки крутопадающих месторождений округлой формы [PDF]
, 2016 Рассматривается 3D модель поэтапных контуров карьера округлой или овальной формы с определенными углами наклона его бортов при разработке крутопадающих месторождений. Контур этапа отработки на каждом горизонте представляет собой замкнутую линию.
Молдабаев, С.К. +3 more
core
Scientific ReportsThe objective of this work is to investigate the implications of geological influence factors on gas content and geochemical characteristics of deep-buried (> 800 m) coalbed methane (CBM) reservoirs. Results show that bituminous coal accounts for the majority, which exhibits similar maturity but differ in maceral and chemical constituents.
Qiang Wei +6 more
openaire +2 more sources
Application of Integrated Directional and Guide Drilling Technology in Deep Coalbed Methane
Journal of Physics: Conference SeriesAbstract Deep coalbed methane is characterized by deep burial, complex and diverse microstructures, significant lateral variations in reservoirs, and the development of internal interlayers. Current seismic exploration methods suffer from severe high-frequency signal attenuation in coal layers, resulting in low seismic resolution, which ...
Weixing Zhu +7 more
openaire +1 more source
Optimization Design of Deep-Coalbed Methane Deliquification in the Linxing Block, China
ProcessesThe production of deep-coalbed methane (CBM) wells undergoes four stages sequentially: drainage depressurization, unstable gas production, stable gas production, and gas production decline. Upon entering the stable production stage, the recovery rate of deep CBM wells is constrained by bottom hole flowing pressure (BHFP).
Bing Zhang +3 more
openaire +1 more source
CMM recovery, utilization and cogeneration by compressor plants [PDF]
, 2016 The article presents the designed schemes and compressor plants for degassing coal beds and utilizing coal mine methane (CMM) and automatic system for controlling their operation. Interdependence between methane-bearing coal structure, permeability and
Bluss, B.O. +4 more
core
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.
core
Deep Underground Science and Engineering, Volume 4, Issue 1, Page i-ii, March 2025.
wiley +1 more source
Особливості видобутку метану з вугільних горизонтів в світі [PDF]
, 2012 Охарактеризованы особенности добычи метана в различных угледобывающих регионах мира, приведена их сравнительная характеристика. Дан химический анализ метаносодержащих газов и показано, как их соoтношение влияет на характеристики метана, подлежащего ...
Лизанец, М.М. +2 more
core
Prediction of competitive adsorption on coal by a lattice DFTmodel [PDF]
, 2018 Adsorption is one of the main mechanisms involved in the ECBM process, a technology where CO2(or flue gas, i.e. a CO2/N2mixture) is injected into a deep coal bed, with the aim of storing CO2by simultaneously recovering CH4.
Mazzotti, Marco +3 more
core