{TAIL ~ The apparatus} further includes an inductive coupler portion, a device for performing a task in {HEAD ~ the wellbore}, and an electrical link between the inductive coupler portion and the device 
{ TAIL ~ The apparatus } further includes an inductive coupler portion , a device for performing a task in { HEAD ~ the wellbore } , and an electrical link between the inductive coupler portion and the device
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH