A new drilling system was developed by the US Ice Drilling Program (IDP) to rapidly drill through overlying ice to collect subglacial rock cores. The Agile Sub-Ice Geological (ASIG) Drill system is capable of drilling up to 700 m of ice in a continuous manner. Intermittent ice core samples can be taken as needed. Ten-plus meters of subglacial bedrock and unconsolidated, frozen sediment cores can be drilled with wireline core retrieval. The functionality of the drill system was demonstrated in 2016–17 at the Pirrit Hills, Antarctica where 8 m of high-quality, continuous granite core was retrieved beneath 150 m of ice. The particulars of the drill system development, features and performance are discussed.

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Agile Sub-Ice Geological (ASIG) 钻探开发和 Pirrit Hills 油田项目

美国冰钻计划 (IDP) 开发了一种新的钻探系统，可快速钻穿上覆的冰层以收集冰下岩芯。Agile 冰下地质 (ASIG) 钻探系统能够以连续方式钻探长达 700 m 的冰层。可根据需要间歇性采集冰芯样本。使用电缆取芯可以钻出 10 多米的冰下基岩和松散的冰冻沉积物岩心。该钻探系统的功能于 2016-17 年在南极洲的 Pirrit Hills 进行了展示，在那里在 150 m 的冰层下回收了 8 m 的优质连续花岗岩岩心。讨论了钻井系统开发、特点和性能的细节。