Abstract: A method of determining mass flow rate and phase distribution of gas/liquid two-phase flows is disclosed. The method uses a Coriolis-based mass flow meter. Flow streams of known mass flow rate and phase distribution are directed through the meter and correlation factors are obtained using an apparent mass flow rate output and an apparent density output from the Coriolis meter. The true mass flow rate and phase distribution of unknown flow streams can then be determined.

Abstract: An improved method and apparatus for determining injection profiles in a steam injection well is disclosed. The mass flow rate of steam entering the well is measured. A well logging tool is then used to measure temperature and/or pressure profiles within the perforated zone of the well. A liquid phase tracer is then injected for a short time into the well with the steam. The well logging tool contains dual gamma ray detectors and is used to measure the transit time of the tracer slug. In the preferred embodiment, the liquid tracer is radioactive elemental iodine or sodium iodide. The procedure is repeated with a vapor phase tracer which is radioactive Krypton. Argon, or Xenon in the preferred embodiment. A vapor and liquid profile can then be calculated with simple mass balance equations. In a second approach, a spinner survey and a single tracer survey are conducted. By combining the spinner and tracer survey results, vapor and liquid rates can be determined and steam injection profiles can be calculated.

Abstract: An improved method and apparatus for determining injection profiles in a steam injection well is disclosed. The mass flow rate of steam entering the well is measured. A well logging tool is then used to measure temperature and/or pressure profiles within the perforated zone of the well. A liquid phase tracer is then injected for a short time into the well with the steam. The well logging tool contains dual gamma ray detectors and is used to measure the transit time of the tracer slug. In the preferred embodiment, the liquid tracer is radioactive elemental iodine or sodium iodide. The procedure is repeated with a vapor phase tracer which is radioactive Krypton, Argon, or Xenon in the preferred embodiment. A vapor and liquid profile can then be calculated with simple mass balance equations. In a second approach, a spinner survey and a single tracer survey are conducted. By combining the spinner and tracer survey results, vapor and liquid rates can be determined and steam injection profiles can be calculated.

Abstract: An improved method and apparatus for determining injection profiles in a steam injection well is disclosed. The mass flow rate and quality of steam entering the well is measured. A well logging tool is then used to measure temperature and/or pressure profiles within the perforated zone of the well. A liquid phase tracer is then injected for a short time into the well with the steam. The well logging tool contains dual gamma ray detectors and is used to measure the transit time of the tracer slug. In the preferred embodiment, the liquid tracer is radioactive elemental iodine or sodium iodide. The procedure is repeated with a vapor phase tracer which is radioactive Krypton, Argon, or Xenon in the preferred embodiment. A vapor and liquid profile can then be calculated with simple mass balance equations. In a second approach, a spinner survey and a single tracer survey are conducted.

Abstract: A method for metering two-phase flow wherein the successive accelerational pressure drops across an orifice plate and across a venturi coupled in series with the orifice plate are correlated to obtain one or more flow-rate parameter.