Deep Aquifer Sampling and the Use of Ball Check-valves Systems

Gal Frédérick, Lions Julie, Grellier Solenne, Squarcioni Patrice, Barriere Jérôme
2017 Energy Procedia  
Accurate monitoring of deep aquifers is one of the challenges with CO 2 Storage surveybut this challenge is not restricted to this thematic. Pumping deep waters is often not appropriate as it requires high amounts of water to be purged. Therefore deep sampling is often performed. Several devices exist; the simplest ones are based on the lowering of bottles with opened valves that are closed at the targeted depth. Improvement comes with bottles that are only opened at desired depth, or with
more » ... depth, or with bottles having an initial volume equal to zero that is enlarged through the functioning of a moving part that creates space and allows water to flows in.
doi:10.1016/j.egypro.2017.03.1512 fatcat:fs7ksqbef5b6zfckqlx7z5lyji