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What is wire-line core drilling?
Mar 14, 2017

Wire-line core drilling is a special type of core drilling, most commonly used for minerals exploration.


while drilling in medium hard and soft formations as are usually encountered in coal areas(sand stone, shale and coal)it is seen that, in deeper holes, more time is spend in hoisting and lowering of drill string, for taking out core sample after every three meter run in comparison to the time spend in cutting the three meter depth.


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