..., intermittent flow is observed for flow in pipes with liquid velocities lower than the velocities for flow in annulus. downward flow production monitoring liquid velocity intermittent flow regime production control superficial velocity transition production logging flow regime pipe downward two...

... vertical orientation before a 3-inch elbow and in a horizontal orientation after the elbow for different flow conditions. In lower gas velocities and higher liquid velocities and viscosities, churn-annular transition and pseudo-slug flow patterns were observed for vertical (before bend) and horizontal...

... Abstract Pressure gradients of concurrent upward air-water flow have been measured in a 25.4mm internal diameter vertical test section over a range of superficial air and liquid velocities. Several sub-regimes of annular flow (pulse/disturbance wave, ripple wave, partial wetting, and rivulet...

... 122 to 560 mPa s. The superficial gas and liquid velocities varied from 0.3 to 7 m/s and 0.05 to 0.7 m/s, respectively. Flow pattern, pressure gradient and liquid holdup data were acquired and compared with previous air-water experiments. Three different flow patterns have been identified based...

... surveillance production logging experiment gas flow rate silica sand particle upstream oil & gas pipe size pipe critical velocity flow rate particle concentration water-air flow particle size liquid velocity concentration glass bead superficial gas velocity Experimental study of low...

... as the actual liquid velocities between the single and multiphase parts of the system are not necessarily matched. The measurements were done with four different liquid velocities of 0.027, 0.044, 0.088 and 0.133 m/s and with variations of the gas velocity from 40 m/s down to 5 m/s. Figure 3. Schematic...

... logging bhr group 2014 stevenson single-phase solid transport model reservoir surveillance solid transport model stratified liquid gas flow statistics liquid velocity multiphase model experimental data production monitoring critical liquid velocity The use of single continuous-phase solids...

... condition bubble velocity decrease viscosity production logging bubble shape fluid dynamics viscous flow reynolds number production control upstream oil & gas experiment production monitoring reservoir simulation drift velocity analytical solution liquid velocity bubble velocity...

... university of tulsa liquid holdup velocity increase pipe film region upstream oil & gas oil viscosity increase production logging bhr group 2014 medium oil viscosity slug front liquid velocity superficial gas velocity reservoir surveillance Experimental study to characterize slug flow...

... to gravity forces. As a result, higher liquid velocities are required to have a transition from stratified to non-stratified. test section stratified flow downward flow bhr group 2012 liquid viscosity production logging inclination angle gas velocity criterion university of tulsa reservoir...

...] Nexbase 3080 7,0 847,9 101,9 Exxsol D80 7,6 824,0 1,8 Mixed oil 4,3 844,5 35,9 SF6 7,0 46,16 0,015 7,6 50,58 4,3 27,17 2.3 Test Points The flow pattern in a pipe depends on the liquid properties, geometry and superficial gas and liquid velocities used. Stratified flow with liquid entrainment is the flow...

... diameter liquid velocity bhr group 2012 correlation CFD modeling of the flow around a by-pass pig A Singh Shell Projects & Technology, The Netherlands R A W M Henkes Shell Projects & Technology, The Netherlands Delft University of Technology, The Netherlands By-pass pigging, as compared to normal...

... In this study, the occurrence of multiple solutions in stratified flows was investigated. The model equations give multiple holdup solutions for certain flow regimes – in small angle upflows with low liquid velocity (low liquid loading) and with low to moderate gas velocity. We applied a steady...

... liquid velocity production monitoring holdup holdup solution slug flow hydrodynamic slug flow point model bhr group 2012 production control stratified region transition production logging pipeline transient behavior upstream oil & gas slip velocity slug catcher reservoir surveillance...