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Mix Ground Conditions Requires Special Consideration

Tue, 07/08/2014 - 15:28 -- manager

JMF Underground was recently tasked with completing a 16" bore with vary shallow clearances in mixed ground conditions. Due to the high sensitivity of the surrounding area coupled with the fractured ground conditions, JMF elected to use an all terrain motor which used just 10% of the water of a conventional mud motor. This change limited the possibility of irregular returns throughout the bore. Upon completion of the pilot bore, the smaller AT drill was switched for a larger conventional drill which allowed adequate pulling of the 16" product.