E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/4
E21B 47/10 (2006.01) G01F 1/10 (2006.01) G01P 5/06 (2006.01) G01P 21/02 (2006.01)
Patent
CA 1041007
ABSTRACT OF THE DISCLOSURE In the several representative embodiments of the new and improved methods discussed herein, a cable-suspended spinner-type flowmeter is successively lowered and raised at selected speeds in a well bore containing one or more flowing fluids whose velocity or flow rate are to be determined. In one manner of practicing the invention, the flowmeter is passed back and forth trough a lower static well bore interval for establishing the response of the tool at zero flow rates. In this way the output measurements obtained from the runs through the higher or dynamic intervals can be uniquely correlated for accurately determining the velocity and flow rate of the well bore fluids in each dynamic interval independently of differences in fluid viscosity. In another manner of practicing the invention, output measurements obtained upon passing the flowmeter back and forth through a dynamic well bore zone in which the fluids are flowing at a known rate are used for accurately determining the velocity and flow rate in the other dynamic well bore intervals.
244610
Anderson Ronald A.
Smolen James J.
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