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Instruments and Methods. Butylacetate, An Alternative Drilling Fluid for Deep Ice-Coring Projects
Authors: Gosink TA, Kelley JJ, Koci BR, Burton TW and Tumeo MA
Year: 1991
Periodical/Journal: PICO TJC-101
Page Range: 170-175

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 safe drilling fluid. Results form the 1990 drill season are highly favorable.

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