| 摘要 |
<p>A method for determining the constituent content of a multiphase fluid includes the following step: gamma rays at single-energy or dual-energy levels are produced by a radiation source (2, 6), after said gamma rays pass through the multiphase fluid, the data at each energy level are detected by a detector sub-system which is composed of one or two detectors (4, 8), and the mass percents of the components in the multiphase fluid are calculated by a controlling and data processing sub-system based on the detected data. Said multiphase fluid is a two-phase or three-phase mixture in crude oil or natural gas. The method can be used for automatic on-line measurement of the production in oil or gas well.</p> |
