... production control pressure gradient effective concentration concentration upstream oil & gas reservoir surveillance superficial liquid velocity effective surfactant concentration surfactant riser base surfactant concentration slug flowline superficial gas velocity bhr group 2018...

... in this document include entrainment fraction values obtained from testing in a 3-inch diameter horizontal pipe using hydrocarbon fluids at 8,375 kPa operating pressure. production control production logging entrainment maximum entrainment entrainment correlation superficial gas velocity prediction...

... holdup will, according to the theory that the low solution is the stable one, end up at the low solution 2low, independent of the previous gas rate. The significance of this will be explained in Section 2.5. Figure 1. The liquid holdup as a function of superficial gas velocity, for a three- phase...

... that at low superficial gas velocities, flow behaviour along the flowloop is transient. Based on the experimental data, two different cases can be distinguished; namely, slug merging and slug dissipation. Figure 3. Toe-down. Slug frequency distribution along the well. Figure 4. Toe-down. Dimensionless slug...

... production and transportation of hydrocarbons. bhr group 2016 liquid film reservoir surveillance pressure gradient upstream oil & gas superficial gas velocity vertical pipe pipe diameter annular flow regime production logging gas core production monitoring transition flow regime...

... superficial gas velocity Observations of sub-regimes in vertical annular flow J R Nichol, E Kuru School of Mining and Petroleum Engineering, University of Alberta, Canada ABSTRACT Pressure gradients of concurrent upward air-water flow have been measured in a 25.4mm internal diameter vertical test section...

... metering viscosity superficial gas velocity oil 127 flow pattern reservoir surveillance pipe average liquid holdup two-phase flow Effect of high oil viscosity on oil-gas flow behavior in vertical downward pipes S Chung 1, E Pereyra 2, C Sarica 2, G Soto 3, F Alruhaimani 2, J Kang 1 1 Department...

... to 3,600 psi to measure the liquid entrained in the gas phase. Two sets of tests were conducted one with an oil-nitrogen mixture and another with oil-methane. During the testing, the pressure was varied between 500 psig and 1,200 psig. The superficial gas velocity was varied between 2 m/s and 17 m/s, while...

... 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...

... 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...

... were performed in a 50 mm diameter 12 m long vertical pipe at ambient pressure. It was observed that adding foamers to water will lead to a lower pressure drop at superficial gas velocities below the transition limit from annular flow to churn annular flow (which is around 15 m/s) and at superficial...

... superficial gas velocity phase flow gamma densitometer flow regime bhr group 2010 production monitoring modeling & simulation point model pressure drop experimentally reservoir surveillance prediction olga water cut liquid holdup holdup experiment production logging production control...