With the described technique of reconfirming resistance, there is little or no flow at {HEAD ~ the end} of {TAIL ~ the measuring phase}, but the inflow tubing and instrumentation are pressurized 
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With the described technique of reconfirming resistance , there is little or no flow at { HEAD ~ the end } of { TAIL ~ the measuring phase } , but the inflow tubing and instrumentation are pressurized
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH