BEHAVIOUR OF VENTURI METERS IN TWO-PHASE FLOWS
Abstract
Needs for accurate and reliable on line metering of two-phase flows (gas and/or liquids) are arising for fiscal and allocation reasons when subsea or topside installations are shared by several partners. This paper describes the work carried out by ONERA in collaboration with ELF EXPLORATION PRODUCTION and GAZ DE FRANCE to assess and develop accurate methods applicable for gas metering with condensate ("wet gas").<BR />After a review of allocation metering requirements and available techniques for flow rate measurements in high gas fraction conditions (GVF>95%), this paper deals with the behaviour of Venturi flow meters in similar two-phase flows.<BR />The applied methodology, which combines experimental laboratory testing and numerical simulation in ONERA, and field evaluation is described. The results obtained on the Venturi meter in different two-phase flow configurations (annular, mist) are presented. The influence of some flow parameters (liquid content, flow pattern) on the Venturi behaviour is discussed.
Event details
- Event
- FLOMEKO 2000
- Technical Committee
- TC9
- Place
- Salvador, Bahia, BRAZIL
- Time
- 4 June 2000 - 8 June 2000