Lifetime management of underground pipelines is mandatory for safe hydrocarbon transmission and distribution systems.
To increase the operational lifetime of existing underground pipelines without laborious and costly excavation, replacement, and embankment, in situ pipeline lining technology has received significant interest over the past three decades.
Most are in their 40's or 50's and many suffer health problems related to lifetimes of labor underground.
If temperatures never climbed high enough to melt the boulders and pebbles at the moon's heart into a single, solid core, it would have remained a rocky rubble pile, extending the liquid lifetime of Enceladus's underground ocean.
We also advocate a dedicated LLP detector at a future 100 TeV collider, where a modestly sized underground design can discover ULLPs with lifetimes at the BBN limit produced in sub-percent level exotic Higgs decays.
This paper aims to evaluate time-dependent reliability of a corroding onshore underground natural gas pipeline system over its lifetime.
The poems he chose, with difficulty — "It's the 'lifetime achievement' factor that means most to me, so I have a slight problem in knowing how to represent a lifetime of poems by reading only a couple of them" — were "The Underground" and "A Drink of Water".
Although narcolepsy didn't exist as a diagnosis during her lifetime, the most famous person in history with narcoleptic symptoms was the Underground Railroad conductor and Civil War scout Harriet Tubman, who believed God spoke to her through her hallucinations.
"Once in a Lifetime" pays homage to early rap techniques and the music of art rock band The Velvet Underground.
Over the lifetime of the oil field the pressure will fall, and at some point there will be insufficient underground pressure to lift the oil to the surface.
Consequences for the Middle East include more prolonged drought, which means that the underground aquifers that store the region's groundwater will not be replenished during our lifetimes, nor during those of future generations.
