Multiphase flow will be partially separated in the flow conditioner to reduce gas fraction flow which will be determined by a dual gamma meter to get WLR. Then together with total flow rate measured by Venturi and GVF by single gamma meter, Haimo MPFM offers individual flow rates of oil, water and gas.
Haimo Standard MPFM is based on this patent and got wildely used around the world with good test results.
Reference Material: Evaluation of the 3-inch Haimo MPFM IN DOD
Integrated two different sizes Venturi within one meter enables Haimo MPFM to largely expand the measurement range.
This patent enables Haimo MPFM expand turn-down ratio from 1:10 to 1:30, and more than 200 such MPFMs already been used in both domestic and international markets.
With throttling measurement device measures differential pressure of total flow and two single gamma meters measuring GVF, the flow meter is able to calculate gas and liquid volume flow rates.
Haimo WGM based on this patent had been used at site and passed site accepatance test in UAE which is highly recognized by clients.
Multiphase flow will be completely separated first in a vertical separator and then in a horizontal separator, and gas and liquid flow rates will be measured in real time. HPT could be used either for fixed installation or mobile testing.
Haimo is the only supplier in the market who offers large size (bulk) flow meter which has been widely used around the world and received highly recognition from clients.
The gas sampler has a gas-liquid separation barrel which has at least two mist catchers in the top while the middle and bottom parts are gas-liquid hydrocyclone separation section which helps to further separate gas and liquid two-phase flow in order to extract gas sample.
This patent has been applied together with Haimo standard MPFM and improved the accuracy of WLR measurement at high GVF condition. In addition Haimo standard MPFM has been widely applied at domestic and overseas markets.
With one Venturi and two dual-gamma meters, and combining a inline liquid sampler which is based on cyclon and collision effect, the CFRM (Compact Full Range Meter) could be used for both low GVF and high GVF conditions. Venturi is used for total flow rate measurement, and dual gamma meters are used for GVF and WLR measurement.
Haimo CFRM is based on this technology and obtained excellent test results at NEL. Please refer to the NEL report "…..." for more information. (RMSE of liquid flow rate/gas low rate/WLR are 4% (Rel), 5% (Rel) and 1.5 (Abs) respectively).
Use a inline liquid sampler based on cyclon and collision effect to extract representative liquid sample from multiphase flow for accurate WLR measurement.
The inline liquid sampler using this patent enables MPFM to accurately measure WLR even in extreme high GVF conditions by reducing gas fraction of multiphase flow.