Downhole communications units for drilling subterranean formations comprised of annular electric inductive couplers for connecting linking tubular components, namely, drill pipes, drill collars, drill bits, jars, motors, hammers, turbines and other downhole tools

'annular':10 'bit':25 'collar':23 'communic':2 'compon':18 'compris':8 'connect':15 'coupler':13 'downhol':1,32 'drill':5,20,22,24 'electr':11 'format':7 'hammer':28 'induct':12 'jar':26 'link':16 'motor':27 'name':19 'pipe':21 'subterranean':6 'tool':33 'tubular':17 'turbin':29 'unit':3

INTELLICOM

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