i) a base platform operable for guiding an end of {TAIL ~ a first pipe} into {HEAD ~ said wellhole} and into interconnection with a corresponding end of a second pipe that is already disposed in said wellhole, 
i ) a base platform operable for guiding an end of { TAIL ~ a first pipe } into { HEAD ~ said wellhole } and into interconnection with a corresponding end of a second pipe that is already disposed in said wellhole ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH