An analysis and interpretation of the signals in gamma-absorption measurements of liquid–gas intermittent flow

Acta Geophysica

Marcin Zych¹ 

[1] AGH University of Science and Technology

关键词: Liquid–gas flow;    Slug flow;    Plug flow;    Flow structures;    Gamma absorption;    Signals analysis;   

DOI  :  10.1007/s11600-018-0212-4

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Instytut Geofizyki

【 摘 要 】

The intermittent flow (slug and plug type) of liquid–gas mixtures in a horizontal pipeline measured by the specific radiometric apparatus is presented. The measurement system consists of two sources of Am-241 gamma radiation and two scintillation probes. An analysis of the signals measured by the radiometric equipment is performed in the domain of time and of frequency. Recognised signal parameters are directly referred to physical quantities associated with a liquid–gas flow. The employed methodology enables determination of gas-phase flow velocity and estimation of the average depth and length of bubble gas structures. In the paper, the processing and interpretation results of the selected experiment are presented to show the in-depth description of gas structures and the type of flows recognition.

【 授权许可】

Unknown