Fluid identification and evaluation within well bores

摘要

Method for fluid identification and evaluation within wellbores using ultrasonic scanning, in which a method of using a borehole televiewer in an active well to determine flow of bubbles within the well comprises (a) determining wall effects from the data; and (b) factoring out the wall effects from the data to determine the flow of bubbles. Pref. the borehole televiewer is stationary. The wall effects are determined from the data by determining the max. amplitude values recorded for each beam position of a circumferential scan of the wall. The flow of bubbles is determined from the amplitude data by calculating the ratio of average to max. amplitude values recorded for each beam position of a circumferential scan of the wall.