Measuring and testing – Borehole or drilling – Downhole test
Patent
1989-09-27
1990-12-04
Williams, Hezron E.
Measuring and testing
Borehole or drilling
Downhole test
7386104, E21B 4700
Patent
active
049744461
ABSTRACT:
This invention relates to methods and apparatus for analyzing a multi-phase fluid flowing along a hydrocarbon well in order to determine, at each depth, the average static proportion of one of the phases by means of a local measurement. At each depth the local static proportion of the phase under investigation is determined at a point in the flow, which point is situated on a circle having a radius r in the transverse -section corresponding to the depth, where the radius r is substantially equal to 0.7 R, and R is equal to radius of the well. The local static proportion at this point is related to the average static proportion by a determined relationship.
REFERENCES:
patent: 3455157 (1969-07-01), Lahaye et al.
patent: 3630078 (1971-12-01), Bonnet
patent: 3721121 (1973-03-01), Fierfort
patent: 3792347 (1974-02-01), Hawley
patent: 3909603 (1975-09-01), Nicolas
patent: 4435978 (1984-03-01), Glatz
patent: 4441362 (1984-04-01), Carlson
patent: 4442711 (1984-04-01), Hulin et al.
F. Danel, Mesure Locale dans les Ecoulements Diphasiques: Developpements Recents des Sondes Optiques; La Houille Blanche-No. 5-1978; pp. 351-355.
O'Shea Kevin D.
Schlumberger Technology Corporation
Tager Clifford L.
Williams Hezron E.
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