Adaptation of the Winkie Drill for subglacial bedrock sampling
Adaptation of the Winkie Drill for subglacial bedrock sampling
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DOI：
10.1017/aog.2020.73
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发表时间：
2020-11
影响因子：
2.9
通讯作者：
Grant V. Boeckmann;Chris J. Gibson;Tanner W. Kuhl;Elliot Moravec;Jay A. Johnson;Zachary Meulemans
中科院分区：
文献类型：
--
作者：
Grant V. Boeckmann;Chris J. Gibson;Tanner W. Kuhl;Elliot Moravec;Jay A. Johnson;Zachary Meulemans
Winkie钻机是一种灵活的、商业化的岩石取心系统。美国冰钻计划已经修改了Winkie钻，用于冰下岩石和冰/岩石界面取芯，以及通过冰钻取和取芯进入孔。原有的汽油发动机被电动机取代，但双速齿轮减速器和Unipress手动进料系统仍保留。使用标准的铝合金AW 34钻杆（用于33.5 mm直径的岩心），该系统具有120 m的深度能力。该钻机在闭环系统中使用正向流体循环。钻井液为Isopar K，因其在极地环境中具有良好的性能而被选用。当钻井现场有积雪或雪时，可以部署带有膨胀式封隔器的套管来容纳钻井液。Winkie钻机将从海平面到高海拔作业，作业对环境的影响最小。该钻机可以由两个人在现场轻松快速地组装和拆卸。所有组件都可以通过Twin Otter或直升机运输到现场。
Abstract The Winkie Drill is an agile, commercially available rock coring system. The U.S. Ice Drilling Program has modified a Winkie Drill for subglacial rock and ice/rock interface coring, as well as drilling and coring access holes through ice. The original gasoline engine was replaced with an electric motor though the two-speed gear reducer and Unipress hand feed system were maintained. Using standard aluminum AW34 drill rod (for 33.5 mm diameter core), the system has a depth capability of 120 m. The drill uses forward fluid circulation in a closed loop system. The drilling fluid is Isopar K, selected for favorable properties in polar environment. When firn or snow is present at the drill site, casing with an inflatable packer can be deployed to contain the drill fluid. The Winkie Drill will operate from sea level to high altitudes and operation results in minimal environmental impact. The drill can be easily and quickly assembled and disassembled in the field by two people. All components can be transported by Twin Otter or helicopter to the field site.