Entity: cable tool drilling
URI: https://data.geoscience.earth/ncl/DrillingMethod/cableToolDrilling
Type: Concept
no description supplied
experimental
| alt label |
cable percussion drilling
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| broader |
percussion drilling
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| definition |
A percussion drilling method that uses a heavy drilling tool that is raised and lowered with enough force to pulverise the rock, with the debris removed by a bailer. Although this drilling method has largely been supplanted in recent years by other, faster drilling techniques, it is still the most practicable drilling method for large diameter, deep bedrock wells, and in widespread use for small rural water supply wells. The impact of the drill bit fractures the rock and in many shale rock situations increases the water flow into a well over rotary. Many large diameter water supply wells, especially deep wells completed in bedrock aquifers, were completed using this drilling method.
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| notation |
2.1
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| pref label |
cable tool drilling
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| source |
cable tool drilling
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| type |
Concept
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| date accepted |
23 janv. 2019 11:20:30.850
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| date submitted |
23 janv. 2019 11:20:10.664
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| definition |
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| item class |
Concept
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| label |
cable tool drilling
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| notation |
cableToolDrilling
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| register |
drilling method
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| status |
status experimental
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| submitter |
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| type |
register item
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| version info |
2
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