Taxonomy term

hydrate

Coatings may prevent pipeline clogs

When ice forms in household water pipes, blockages and expansion can cause the pipes to burst. Similar problems can arise in the transportation of oil and gas when ice-like substances called gas hydrates build up inside pipelines — an issue traditionally mitigated by insulating pipes or by using antifreeze additives. But in a new study published in the journal ACS Applied Materials and Interfaces, researchers report an alternative solution: specialized coatings for the inside of oil and gas pipes that prevent hydrate buildups and clogs. The coatings could prove more reliable than the usual approaches, but whether the method can be applied cost-effectively on a large scale is uncertain.

27 Aug 2017

Listening for gas bubbles

Passive acoustic technology detects natural gas leaks and seeps

In recent decades, active acoustic surveys have been used to detect methane seeps and gas hydrates — deposits of crystalline solids consisting of gas molecules, usually methane, surrounded by a cage of water molecules — buried under the seafloor.

27 Feb 2012

USGS finds giant gas hydrate deposits on North Slope

Buried beneath Alaska's North Slope are about 85.4 trillion cubic feet of technically recoverable natural gas hydrates, according to a new U.S. Geological Survey assessment. That would be a significant source of energy to add to the U.S. energy mix — enough natural gas to heat 100 million homes for 10 years, Secretary of the Interior Dirk Kempthorne announced Wednesday.

12 Nov 2008