Sentence examples for migration of gas from inspiring English sources

He said the rules required layers of cemented well casings to prevent the migration of gas.

Cement sheath is the main barrier against leakage and migration of gas from the pay zone to the shallow zones.

To produce an effective engineering design for an LFG collection system, designers must understand the migration of gas from the waste body to horizontal extraction wells.

Rebuilding of surface pressure (pressure buildup – after closing the valve) results from migration of gas in the leaking cement sheath of the well's annulus.

The connectivity of oil-wetting pore throats in the vertical dimension is critical for the free migration of gas in mixed wetting porous media.

Oil-wetting pore throats that are mainly composed of oil-wetting grains also improve the dynamic conditions that favor the migration of gas phase.

For all their disagreements, scientists on both sides of the fracking debate agree that it is very unlikely that microfracturing of rock formation itself contributes to the vertical migration of gases.

This may result in annular gas flow or sustained casing pressure and thus become a pathway for gas migration to the surface, a known mechanism of emissions of gases to the air and migration of gases and fluids to groundwater (Brufatto et al. 2003; Watson and Bachu 2009).

Within weeks of the explosion, the state had ordered the driller to come up with a plan to prevent similar migrations of gas and to provide water to a handful of residents until the methane dissipated, regardless of how long that took.

The model simplifies transient gas flow in cement and ignores migration time of gas in the annular fluid column above the cement top.

It is the result of upward migration of natural gas in Triassic Xujiahe Formation.