... Abstract The extension of fractures in deep coal seam hydraulic fracturing needs to fully consider the influence of natural fractures. The mechanical characteristics of natural fractures and effective prediction of natural fractures in coal seams have become key factors in deep coal seam...

... the total role that fossil fuels play in our everyday lives. We need to consider who is delivering the message and how this may be perceived in different communities. And this communication strategy needs to be established for Colorado and a wider national audience. complex reservoir coal...

... of low organic content, illite may be responsible for the additional sorptive storage (Lu et al. 1995). complex reservoir Fluid Dynamics strain data permeability enhancement poromechanical expansion Coal Geology Upstream Oil & Gas pore pressure international journal permeability...

..., employing optimal laser intensity and analysis duration, on powders of coal, kerogen and shale. The powders are first blended with an aqueous nanoparticle solution containing micro-silver, to take advantage of the SERS Effect. The SERS maturity data show consistent variability with maturity, which...

... Summary Low temperature (60 and 100 °C) and long-term (6 months to 5 years) heating of pre-evacuated and sterilized shales and coals containing kerogen Types I (Mahogany Shale), II (Mowry Shale and New Albany Shale), and III (Springfield Coal and Wilcox Lignite) with low initial maturities...

... and is approximately 532.45 square kilometers. 400 million tonnes of coal were discovered by the Government of Kenya through its Ministry of Energy in Mui basin in 2010.The research was carried out in partial fulfillment for the award of Bachelor of Science in Geology. The main objective of the research project...

... Abstract Coal Seam Gas (CSG) development activity is typically identified by low cost, vertical wells using low technology, simple solutions. This approach is frequently driven by small companies with minimal financial capabilities to embark upon more sophisticated well designs and completions...

... of the Triassic System in the Sichuan Basin and the Carboniferous and Permian System in the Ordos Basin. Tight sandstone and coal measures have formed gas-bearing assemblage in large scale in these two basins, which is a prerequisite to tight sand gas generation and accumulation. Similar to most shale gas basins...

... and sandstone with some thin coals seams. Middle level (the Kozlu Formation) and upper level (the Karadon Formation) consist of delta front and delta top -fluvial conglomerate, sandstone, mudstone-shale and coal. The middle and upper levels comprise 33 m thick of coal as 0.10 - 3.5 m thick seems. Analysis...

... Summary Some of the technical challenges in coalbed methane (CBM) exploration are to: Find the balance between good gas capacity (which tends to increase with depth) and good permeability (which tends to decrease with depth) Predict the distribution of coal, preferably thick coal, which...

... that has been able to quickly accommodate this added supply. As documented in Figure 2, annual CO2 emissions from the U.S. energy sector have decreased from an all-time high of 6 billion tons/year during 200–07 to 5.3 billion tons in 2012. This shift from coal to natural gas, however, is not automatically...