L&TD

The Sondex FDR provides a reliable, durable and comparatively safe means of measuring fluid density at all well deviations. The tool uses a low energy Americium‑241 gamma ray source with radiation levels approaching background at a distance of only one metre from the tool. The tool has been re‑designed to be immune to the effects of radioactive scale. A radiation shield is provided which can be locked on the tool so that the source can be left in place between jobs. As the tool is unaffected by gravity or pressure fluctuations, it is able to operate reliably in all orientations from vertical to horizontal, and at all flow rates.

OPERATING PRINCIPLE

Gamma rays are emitted by the RA source at one end of a measuring cell through which the well fluid passes. At the opposite end of the cell a scintillation detector provides a count rate which is a logarithmic function of the fluid density. The scintillation detector is temperature stabilized and matched to the gamma energy of the source. The tool may be calibrated in air and fresh water using Sondex supplied multipliers to derive calibration values applicable to oil and saltwater densities.

SPECIFICATIONS

BENEFITS:

• Evaluating multiphase production profile.
• Identifying the location of oil, gas or water.
• Identifying fluid flow pattern in well bore
• It could be used in horizontal or highly deviated Wells.
• It is sensitive with a wide range of fluid flow rates.

The combination of capacitance & density tool is helpful to identify the patterns of fluid flow in vertical / horizontal / highly deviated wells...