... methods were tested on simulated data which was generated by a multiphase flow simulator. The results showed that these methods are accurate in monitoring both flow rates and slugging characteristics (amplitude and frequency). Additional insights via PCA-based visualizations show that slugs could...

.... For the Mikkel/Midgard fields, which are tied back to the Åsgard B platform, the instabilities enforce minimum flow rates in the flowlines due to liquid handling of the surges topside. Åsgard B has also experienced hydrate problems related to no liquid MEG inhibitor arriving topside between each liquid surge...

... ABSTRACT The Gannet oil export pipeline is operating at relatively low flow rates. At these low flow rates, there is potential to have a flow regime with laminar flow instead of with turbulent flow. Therefore, the viscosity, or rather the rheological properties, of this oil are essential...

... injectable venturi injection pressure drop pipeline transient behavior reduction reservoir surveillance valve gas injection riser base pressure fluctuation flow rate experiment slug catcher artificial intelligence stability production logging bottom-hole pressure production control plain...

... Liquid loading is a well-known problem that occurs when wet gas wells approach their end-of-life. Due to the depletion of the reservoir, its pressure decreases. Consequently, the gas flow rate in the well is also reduced. When only dry gas is present in the well, the reduced gas flow rate has no further...

... [3]. For the datasets shown in Figure 4, both Elseth and Amundsen report flow rates calculated through integration over the velocity profiles. In Table 4, we compare the turbine flow rates stated by Elseth, his estimated flow rates calculated through integration over the velocity profile, and our own...

... complex reservoir lf 2 mass flow rate relative error upstream oil & gas production monitoring production logging condensate reservoir operation pipeline prediction field data flow rate pipeline pl1 bhr group 18 pipeline pl3 reservoir surveillance international conference...

... compression station, import/export flowlines and topside separation system. The flowline model in the FAS has been tuned against existing field data on pressure drop and liquid accumulation. At low flow rates, liquid surge wave instabilities in the flowlines occur. In the present paper, it is shown...

... pipe (mm) DH = Hydraulic diameter (mm) © BHR Group 18 MPT 2017 345 pcsg,bt = pressure at the bottom of the inner casing (bar) pinj = injection pressure (bar) pinj,max = maximum injection pressure (bar) ptbg,bt = pressure at the bottom of the tubing (bar) pwh = wellhead pressure (bar) qg = gas flow rate...

...Prolonged gas-condensate pipeline operation below minimum turndown rate E Zakarian, J Morgan Woodside Energy Ltd, Australia 1 ABSTRACT Large liquid volumes build up in gas-condensate pipelines when operated at low flow rates, so limited time is available before production needs to be restored...

... in a vertical section of the pipe. Liquid and gas flow rates have been determined by means of semi-empirical equations developed for the specific set of flow parameters (geometry, flow rates, physical properties) adopted in a series of laboratory tests conducted in the Multiphase Flow Laboratory of TEA Sistemi...

.... The preliminary plan for the field is to install 20–30 subsea wellheads, and metering of the flow from each well is required for reservoir drainage planning. In addition, flow rate metering is required in order to predict the flowing conditions inside the 100 km long flowline. For this purpose, metering accuracy...

... vessels as the receiving first stage bulk separator, the principle of operation being separation by gravity. This enables good tolerance to slug flow and varying flow conditions, allows a large interfacial area for liquid-liquid separation, and enables desired flexibility in terms of flow rate and control...

... ABSTRACT Field data are presented for two parallel risers connected to the same inlet. The data show that the multiphase flow is split equally over the two risers at high flow rates; however, below a critical flow rate the system diverges: the flow passes preferentially through one riser...

... solutions in flows with low liquid loading. Specifically, maps were generated showing the critical flow rates for which the flow changes from the low-holdup solution to the high-holdup solution. Such maps were created for various pipe diameters, pipe angles, liquid densities, gas densities and liquid...

... experiment reservoir surveillance production control bhr group 2015 upstream oil & gas supercritical flow biberg critical point equation holdup critical holdup flow rate simulation production logging liquid superficial velocity inclination international conference production...

... predictions obtained by running the OLGA HD model with the back calculated turbulence levels for each data point. Data from Espedal [12]. © BHR Group 2015 Multiphase 17 379 The back calculated turbulence levels differ in value from data point to data point, i.e. from one flow rate combination to the next. We...

... can be formed of limiting flow rates based on criteria including: maximum inlet pressure (e.g. based on design or trip pressure, well productivity etc maximum downstream design rates, minimum stable flow, minimum/maximum outlet temperature, hydrate dissociation temperature, wax appearance temperature...

... and optimization programs. NOMENCLATURE q Compound flow rate of oil and water [Sm3/d] pwh Wellhead pressure, [bara] qo Flow rate of oil [Sm3/d] Density [kg/m3] qw Flow rate of water [Sm3/d] mix Density of the oil-water mixture [kg/m3] f ESP frequency [Hz] Viscosity [Pa s] qmaxesp Maximum allowable ESP flow...

... allowed conclusions to be drawn about the influence of GOR, flow rate and water cut on wax deposition. The two wells with deposition were flowing at lower rate than the wells with no deposition and this was found to be the main reason for the wax deposition in those two wells. At optimum operating...