coal seam

Also found in: Dictionary, Thesaurus, Wikipedia.

coal seam

[′kōl ‚sēm]

(geology)

References in periodicals archive ?

'The team was told that there was intermittent fire flare from the exposed coal seams and this commenced around December 2017.

FG orders intensive investigation into coal burning incident in Anambra

The pore structure was analyzed at 1000 times magnification to be able to analyze the low-permeability coal seam surface pore structure characteristics.

Micropore Structure and Fractal Characteristics of Low-Permeability Coal Seams

Based on the multiphysics field theory, the hydraulic-mechanical coupling model of gas extraction in the unloading coal seam was established, and the gas extraction process by drilling borehole in the floor roadway in the overburden of Panyi Coal Mine 1551 (1) panel was simulated.

Rational Boreholes Arrangement of Gas Extraction from Unloaded Coal Seam

[10] considered that with the increase of effective stress, the fracture opening of coal seam decreases gradually and some microfractures were completely closed, which made the permeability decrease sharply.

The Migration of Coalbed Methane under Mining Pressure and Air Injection: A Case Study in China

The thick and hard roof breaking has an important effect on the stability of surrounding rocks and coal seam [9, 10].

The Breaking Span of Thick and Hard Roof Based on the Thick Plate Theory and Strain Energy Distribution Characteristics of Coal Seam and Its Application

Dynamic Development of Surface Fissures in Shallow Coal Seam Mining

Formation Mechanism and Reduction Technology of Mining-Induced Fissures in Shallow Thick Coal Seam Mining

Coal seams mostly occur in the Lower Coal-bearing Member and the Upper Coal-bearing Member, being in the former present as thick coal seams (max 79.4 m) interlain with coarse sandstones, and in the latter as thin coal seams interlain with fine sandstones [16].

Accumulation stages and evolution characteristics of oil shale and coal in the Dunhua-Mishan Fault Zone, Northeast China

The first surface measurement of heights of surface points in the area of Block 7 was carried out on 15 March 2012 at the time of mining the first face 140 702 in coal seam 40.

Specifics in the formation of subsidence troughs in the Karvina part of the Ostrava-Karvina coalfield with the use of radar interferometry

The National Coal board believe it is unlikely to be a coal seam, and an Ordnance Survey map from the 1940s revealed the fire started where there used to be two large ponds that have been back-filled.

Underground 'mine' fire still burning after a year

3 the black band at the bottom of the gas wells is the principal coal seam at Thar accounting for 80% of the total coal.

The Breakthrough at Thar Coal Field

In Chinese coal measure strata, because the coal seam, dark mud shale, and tight sandstone interbedded deposit, the geological phenomenon which several kinds of coal measures gasses jointly preserve is relatively prevalent.

Geological characteristics of unconventional gas in coal measure of Upper Paleozoic coal measures in Ordos Basin, China

His peaceful life was disturbed shortly afterwards, however, when the Queensland Gas Company (QGC) arrived and informed him that they intended to drill a well on his property into a coal seam full of gas.