Nettetreduce emulsion slugging and to constrain gas in the liquid leg to a GVF (Gas Volume Fraction) of 0 to 60 %v/v for measurement with a Dual Gamma Venturi MPFM. Gas will be entrained in the emulsion, without slip between the phases, as a froth of small bubbles similar to bubbles in treacle and is not expected to form voids at lower GVF levels. http://www.haimotech.com/html/Products-and-Services/LiveFlo/LiveFlo-Max/Multiphase-Flow-Meter.html
A Lecture About the Use of Multiphase and Wet Gas Flow Meter
NettetThe Vx Spectra surface multiphase flowmeter (MPFM) is our flagship SLB MPFM based on rugged Vx multiphase well testing technology. The technology helps you determine flow rates without the need for separation and gives you full visibility on your well performance. NettetGVF Level Additional Measurements and Accuracy GVF < 20 % 0 – 100 % Water Detection ( Liquid / Liquid Service) ±1 %a Hydrate Inhibitor – Water-Oil Concentrationb 20 % < GVF < 98 % 0 – 100 % Slug Detection (Multiphase Flow Service) ±2 %a Water Detection MEG– Water-Oil Concentrationbc GVF > 98 % 0 – 100 % Slug Detection boba fett screen time
Mattia Genolini – ABB IT PAMP High Gas Multiphase Flow Meter …
NettetAgain deviation in WLR and GVF can be presented and it is often easy to spot where the largest deviations occur. The length of the lines between the reference measurement and MPFM measurement point now indicates an absolute deviation between the reference and MPFM (see Figure 9.6 for an example). Nettethigh gas volume fractions (GVF) and stratified flow it may be impossible to sample any oil out of such points. Sample points in the 6 o’clock position on the other hand will often make it impossible to sample gas. If there is significant amounts of water it can even be difficult to sample oil or condensate from valves at the bottom of the pipe. Nettetthe performance of the MPFM. Most of the Wetgas meters (or multiphase meters in wetgas mode) operating at 95% or 98% GVF and higher often use a GOR value calculated … climbing fruits images