gas pocket


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gas pocket

[′gas ‚päk·ət]
(geology)
A gas-filled cavity in rocks, especially above an oil pocket.
(metallurgy)
A cavity in a metal which contains trapped gases.

gas pocket, blowhole

A hole or void, as in a casting, which results from entrained air.
References in periodicals archive ?
Seismic data from the subsurface of the North Sea further shows that about one third of the boreholes perforated shallow gas pockets and may thus leak methane.
The lower amygdaloid is about 20 meters thick--the thickest of the three layers of mineralized gas pockets.
Geoseismic mapping has become the go-to technology for locating the gas pockets.
Multiple gas pockets along the vesical wall were present, and the images were compatible with the diagnosis of emphysematous cystitis (Figure 1).
On gas pockets in wastewater pressure mains and their effect on hydraulic performance.
For instance, the methane gas pockets present in pipeline oil has traditionally been burned off when it reached the oil refinery.
The liquid is then brought down to atmospheric pressure as it cools, causing the gas pockets to expand and become trapped in the chocolate.
There can also be problems with unexpected gas pockets or areas where the mud can seep from the shaft and throw off pressure readings.
The ultimate consequences of uncontrolled formation of gas pockets in the structural foam can be less effective density reduction, compromised mechanical properties, and surface defects such as non-uniform surface swirl, visible weld lines, and color contrast across weld lines.
The non-invasive meters are not affected by suspended solids or gas pockets and provide accurate, hi-directional flow measurement.
LaBonge has bold plans to lift the federal ban on tunneling in areas with methane gas pockets.
AECCo's staff sampled various fill methods, such as opposing flow lines in one mold, but trapped atmospheres, particularly gas pockets, were continuously found inside the castings.