Cutting tool used with a bull nose placed between the measurement-while drilling and rotary-steerable systems that activates when total depth is reached and the undergauge section below the systems are determined not to be in alignment during oil and gas drilling

'activ':21 'align':40 'bull':6 'cut':1 'depth':24 'determin':35 'drill':14,45 'gas':44 'measur':12 'measurement-whil':11 'nose':7 'oil':42 'place':8 'reach':26 'rotari':17 'rotary-steer':16 'section':30 'steerabl':18 'system':19,33 'tool':2 'total':23 'undergaug':29 'use':3

RATHOLE REAMER

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