초록 ▼

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 in

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.

대표청구항 ▼

A well logging apparatus adapted to be suspended to a cable in a hydrocarbon well for analyzing a multi-phase fluid flowing along said well in order to determine the average static proportion of at least one of the phases at a plurality of measurement depths, comprising: an elongate body; at least o

A well logging apparatus adapted to be suspended to a cable in a hydrocarbon well for analyzing a multi-phase fluid flowing along said well in order to determine the average static proportion of at least one of the phases at a plurality of measurement depths, comprising: an elongate body; at least one sensor movably mounted on said body and sensitive to the phases of the fluid for performing a local measurement in a limited zone of the well; and means for positioning said sensor at a point substantially located on a circle of radius r which is equal to 0.7 R in the transverse cross-section of the well at each of said measurement depths, where R is the radius of the well.