Fluid Density Radioactive (FDR)
The FDR is a fluid identification tool that uses low energy gamma rays to determine the downhole fluid density during a production log. the tool provides a safe and reliable measurement that is unaffected by well deviation and flow rates.
Gamma rays are emitted from an Americium-241 source at one end of the 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.
Features & Benefits
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
Surface read-out or memory operation
