multi-angle reflection only sensor for near real-time determination of acoustic properties of a fluid well interior

摘要

The present invention relates to methods, systems and devices for determining a well of interior fluid parameter of interest using an acoustic assembly comprising a single solid sound transmission medium having a face immersed in the well interior fluid. . The methods include using characteristics of a plurality of acoustic pulse reflections from a solid-liquid interface on the face of the solid acoustic transmission medium to estimate the parameter of interest in near real time. The characteristics may comprise a corresponding reflection amplitude and the corresponding unique reflection angle for each acoustic pulse reflection. Methods may include generating a two-dimensional data set from the measured characteristics, generating a curve by performing data fitting on the two-dimensional data set, and using the reciprocal slope of the curve to estimate the parameter of interest. The methods may include estimating time-dependent values for the parameter of interest substantially continuously while the acoustic assembly is in a single borehole profiling run.