gas tracer

gas tracer

[¦gas ′trā·sər]
(mining engineering)
Dust clouds, chemical smoke, or gaseous or radioactive tracers used to detect slowly moving air currents in a mine.
References in periodicals archive ?
The company's fracture fluid identifier tracers, oil-soluble tracers and Natural Gas Tracers, enable efficient, cost-effective downhole diagnostics, providing oil and gas operators with critical data to efficiently optimise reservoir development and production.
Still, scientists believe ALMA will make transformational leaps possible in the understanding of the universe, enabling a hunt for so-called cold gas tracers, the ashes of exploded stars from a time about a few hundred million years after the Big Bang that astronomers call "cosmic dawn.