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Ice Core Drilling: Design and Operation
deep-drilling operations in glaciers require a fluid to maintain hydrostatic equilibrium and prevent closure due to plastic flow of the ice. Many past practices have employed various fluid mixtures using fuel oil as the base. The case for butyl acetate is presented here as an adequately dense and environmentally sage drilling fluid. Results from the 1990 drill season are highly favorable.
http://www.gisp2.sr.unh.edu/Contri_Series/titles/8.html
![]() data dodania wpisu: 13-11-2008
Keywords: deep-drilling
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