Gamma rays are emitted from an Americium-241 source at one end of a measuring cell and are detected at the opposite end by a scintillation detector and photomultiplier. Well fluid flows through the cell and attenuates the received count rate in an inverse logarithmic function of the average fluid density. The detector is temperature stabilized and matched to the gamma energy of the source.
The tool can be calibrated in air and freshwater using Sondex supplied multipliers to derive calibration values
applicable to oil and saltwater densities.
• Americium 241 gamma ray source
• Shielded detector highly resistant to radioactive scale interference
• Multi-phase production profiling
• Fluid identification
• Used in all well deviations
• Density measurements in a range of fluid flow rates
• Protective radiation shield (type A rated) can be locked on the tool
so that the source can be left in place between jobs
• Fully combinable with all Ultrawire* Production Logging Tools
• Surface readout or memory operation