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Effect of gas content in macropores on hydraulic fracturing in rocks using a fully coupled DEM/CFD approach

International journal for numerical and analytical methods in geomechanics (Print), 2020
The paper focuses on the effect of the gas content in rock macropores on a hydraulic fracturing process. The process was simulated by combining the discrete element method (DEM) with computational fluid dynamics (CFD) under two‐dimensional (2D ...
M. Krzaczek, M. Nitka, J. Tejchman
semanticscholar   +1 more source

A new approach to estimating coal gas content for deep core sample

, 2020
Method to accurately estimate gas content in the deep-burial coals is still unavailable. To this end, a new method which avoids the underestimation of lost gas content during the retrieval process of deep-burial coal sample within boreholes was well ...
Hongjie Xu   +4 more
semanticscholar   +1 more source

Geological controls on gas content distribution of coal seams in the Kınık coalfield, Soma Basin, Turkey

, 2020
The Miocene Soma Coal Basin may be one of the most promising areas for low-rank coalbed methane in Turkey. So far, the coalbed methane potential of the coal seams in the Kinik Coalfield, Soma Basin has not been adequately studied.
Olgun Esen   +4 more
semanticscholar   +1 more source

Gas Content of Graphites, (I)

Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1961
Gas evolution from graphite was studied. The materials used for the study included natural and artificial graphites, two kinds for each, and amorphous carbon, one kind. All the materials were received from the respective makers in the from of powder. Degassing was carried out at 300°, 600° and 1, 000°C in vacuo. The total volume of gases evolved ranged
Seishi YAJIMA, Sumio ICHIBA, Muneo HANDA
openaire   +1 more source

Quantitatively determining gas content using pulsed neutron logging technique in closed gas reservoir

, 2020
Tight gas has become an important part of unconventional petroleum exploration and development. The evaluation of gas content is of great significance for reservoir prediction and oil & gas production.
Qian Chen   +8 more
semanticscholar   +1 more source

Coal Bed Gas Content and Gas Undersaturation

1999
Undersaturation of coal with respect to gas is a major economic risk in the coal bed gas exploration. This communication addresses the following questions: (1) How much thermogenic gas is formed from coals at different levels of maturity? (2)What is the minimum rank at which a given coal has generated sufficient thermogenic gas to be saturated at ...
G. Khavari-Khorasani, J. K. Michelsen
openaire   +1 more source

Applying isotopic geochemical proxy for gas content prediction of Longmaxi shale in the Sichuan Basin, China

, 2020
Numerous studies have been conducted on the isotopic geochemical characteristics of shale gas. However, a systematic study of the relationship between the isotopic geochemical characteristics and gas content has not been addressed to date. In this study,
Zhipeng Chen   +6 more
semanticscholar   +1 more source

Local measurement of gas content

Journal of Engineering Physics, 1980
The article examines problems related to the proper use and accuracy of methods of measuring local gas content in a gas-liquid stream.
L. Z. Shenderov   +2 more
openaire   +1 more source

Vertical heterogeneity of permeability and gas content of ultra-high-thickness coalbed methane reservoirs in the southern margin of the Junggar Basin and its influence on gas production

, 2020
Ultra-high-thickness (>15 m) is one of the unique features of coalbed methane (CBM) reservoirs in Junggar basin, Xinjiang, China. However, there are few studies on the vertical permeability and gas content heterogeneity of ultra-high-thickness reservoirs.
Junqiang Kang   +3 more
semanticscholar   +1 more source

Radon Content of Soil Gas

Physics, 1932
An electroscope and technique for measuring the radon content of soil gas are described. Measurements were made to answer several questions regarding the radon content of soil gas. It was found that there is no systematic increase of radon content with depth of penetration into a soil, that soil formations appear to have more or less characteristic ...
Holbrook G. Botset, Paul Weaver
openaire   +1 more source

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