Gas Abundance

Gas Abundance

 

the amount of gas liberated per unit of mass or volume of a mineral during its extraction. Gas abundance depends on the gas-bearing capacity, as well as on the gas permeability, the method and intensity of extraction of the mineral, the depth of the mining, and the pressure of the gas enclosed in the joints and pores of the mineral and the surrounding rock. During underground mineral extraction, the quantity of gas escaping into the underground mining area per unit of time is called the absolute gas abundance; the relative gas abundance refers to a unit of mineral extracted per unit of time (usually per day). The gas abundance of mines refers to the amount of gas that escapes from seams of coal (ore) and rock. Mines (pits) that give off methane are called gas mines. Mines in the USSR are classified in four categories according to the amount of escaping methane, hydrogen, or other explosive gas per ton of daily mineral (coal or ore) extraction.

P. M. SOLOV’EV

References in periodicals archive ?
America's development of hydraulic fracturing technology has enabled a new wave of oil and gas abundance in the US, and that his country was in a position now to focus on maximising exports of its energy, as well as its technologies, he added.
And from a broader view, the shales also brought in a period of global oil and gas abundance, instead of ever more perilous scarcity, and shifted the center of the oil and gas business back to the United States.
It discussed the oil crisis in the late 1970s, Breshnev's resource intensive response to stem the stagnation, and gas abundance providing some respite.
Taking both results together, a strong correlation is expected between the properties of the underlying stellar population and both the ionization strength and the gas abundance. Indeed, this is the case.
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction.
Global gas abundance in the world is good news for the Middle East.
'Despite such oil and gas abundance, the average Iraqi can have only eight hours of electricity daily,' he told his CSIS audience.
This new gas abundance has led to much lower prices for North America - providing businesses with a major competitive advantage.
"This will not only allow Oriental Weavers to be completely independent and self-reliant, but also to take advantage of the gas abundance in Egypt and source all its feedstock for the entire manufacturing process locally," Farida Khamis said.
gas abundance carrying on for a long time, and prices remaining relatively stable, compared to what officials were projecting just a few years ago.
The spatially resolved information provided by these observations is allowing us to test and extend the previous body of results from small-sample studies, while at the same time it opens up a new frontier of studying the 2D gas abundance on discs and the intrinsic dispersion in metallicity, progressing from a one-dimensional study (radial abundance gradients) to a 2D understanding (distributions), allowing us at the same time to strengthen the diagnostic methods that are used to measure HII region abundance in galaxies.