Recent developments in microelectronic design have enabled the FAST technology to be developed. Through a combination of closely spaced cross sectional optical and electrical measurements, coupled with mechanical and ultrasonic flowmeters and a high resolution temperature sensor, a wide range of complex flow regimes can be accurately quantified in a variety of wellbore environments, many of which may have limited or restricted the application of conventional techniques.
Oil, water and gas phase identification is achieved by combining miniaturised and highly responsive optical, electrical and flow-meter sensors. These are positioned cross-sectionally across the well-bore at 90 degree intervals, with multiple tool sections combined to increase the spatial resolution as required. The ultra compact, robust technology is deployable with virtually any wellbore conveyance method, in open and cased hole zones.