Apparatus and method for measuring mass flow-rates of gas, oil and water phases in wet gas
US10914622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2016 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is directed to apparatus for measuring mass flow-rates of the gas, oil and water phases in a wet gas, comprising the following parts: a differential pressure flow meter, having a throat section, and a gamma ray detector, comprising a gamma ray emitter and a gamma ray receiver that are arranged in such a manner that gamma rays emitted from the gamma ray emitter can pass through the throat section in diametrical direction to reach the gamma ray receiver; wherein a radioactive source in the gamma-ray emitter is a multi-energy radioactive source that can naturally emit at least three energy gamma rays, and a thermostatic device is not used in the gamma ray receiver. The invention further relates to a metering method for measuring mass flow-rates of the gas, oil and water phases in a wet gas, in which the above apparatus is used. As for the apparatus according to the invention, neither a thermostatic device nor the calibration for the empty tube value is in need, and thus it is very suitable for the uses under water or down-hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.